./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/libvsync/rec_ticketlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/rec_ticketlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26fb157b5325eaa996338c8b5885df439eefd4a5361a0a1d7cce4088ff8240ef --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:52:56,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:52:56,079 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:52:56,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:52:56,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:52:56,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:52:56,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:52:56,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:52:56,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:52:56,119 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:52:56,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:52:56,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:52:56,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:52:56,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:52:56,123 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:52:56,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:52:56,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:52:56,124 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:52:56,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:52:56,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:52:56,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:52:56,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:52:56,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:52:56,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:52:56,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:52:56,128 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:52:56,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:52:56,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:52:56,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:52:56,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:52:56,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:52:56,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:52:56,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:52:56,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:52:56,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:52:56,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:52:56,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:52:56,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:52:56,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:52:56,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:52:56,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:52:56,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:52:56,133 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26fb157b5325eaa996338c8b5885df439eefd4a5361a0a1d7cce4088ff8240ef [2024-11-09 02:52:56,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:52:56,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:52:56,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:52:56,447 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:52:56,447 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:52:56,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/rec_ticketlock.i [2024-11-09 02:52:57,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:52:58,295 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:52:58,296 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i [2024-11-09 02:52:58,348 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8448627/8f02686146e046a6830d9372d926cb36/FLAG4d410fa55 [2024-11-09 02:52:58,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8448627/8f02686146e046a6830d9372d926cb36 [2024-11-09 02:52:58,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:52:58,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:52:58,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:52:58,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:52:58,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:52:58,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:52:58" (1/1) ... [2024-11-09 02:52:58,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e77dd42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:58, skipping insertion in model container [2024-11-09 02:52:58,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:52:58" (1/1) ... [2024-11-09 02:52:58,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:53:00,421 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[172521,172534] [2024-11-09 02:53:00,426 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[172881,172894] [2024-11-09 02:53:00,582 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[195820,195833] [2024-11-09 02:53:00,583 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[195887,195900] [2024-11-09 02:53:00,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:53:00,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:53:00,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-09 02:53:00,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-09 02:53:00,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-09 02:53:00,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-09 02:53:00,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-09 02:53:00,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-09 02:53:00,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-09 02:53:00,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-09 02:53:00,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-09 02:53:00,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-09 02:53:00,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-09 02:53:00,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-09 02:53:00,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-09 02:53:00,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-09 02:53:00,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-09 02:53:00,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-09 02:53:00,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-09 02:53:00,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-09 02:53:00,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-09 02:53:00,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-09 02:53:00,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-09 02:53:00,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-09 02:53:00,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-09 02:53:00,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-09 02:53:00,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-09 02:53:00,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-09 02:53:00,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-09 02:53:00,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-09 02:53:00,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-09 02:53:00,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-09 02:53:00,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-09 02:53:00,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-09 02:53:00,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-09 02:53:00,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-09 02:53:00,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-09 02:53:00,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-09 02:53:00,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-09 02:53:00,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-09 02:53:00,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-09 02:53:00,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-09 02:53:00,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-09 02:53:00,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-09 02:53:00,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-09 02:53:00,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-09 02:53:00,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-09 02:53:00,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-09 02:53:00,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-09 02:53:00,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-09 02:53:00,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-09 02:53:00,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-09 02:53:00,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-09 02:53:00,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-09 02:53:00,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-09 02:53:00,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-09 02:53:00,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-09 02:53:00,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-09 02:53:00,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-09 02:53:00,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-09 02:53:00,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-09 02:53:00,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-09 02:53:00,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-09 02:53:00,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-09 02:53:00,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-09 02:53:00,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-09 02:53:00,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-09 02:53:00,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-09 02:53:00,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-09 02:53:00,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-09 02:53:00,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-09 02:53:00,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-09 02:53:00,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-09 02:53:00,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-09 02:53:00,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-09 02:53:00,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-09 02:53:00,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-09 02:53:00,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-09 02:53:00,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-09 02:53:00,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-09 02:53:00,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-09 02:53:00,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-09 02:53:00,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-09 02:53:00,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-09 02:53:00,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-09 02:53:00,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-09 02:53:00,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-09 02:53:00,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-09 02:53:00,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-09 02:53:00,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-09 02:53:00,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-09 02:53:00,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-09 02:53:00,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-09 02:53:00,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-09 02:53:00,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-09 02:53:00,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-09 02:53:00,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-09 02:53:00,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-09 02:53:00,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-09 02:53:00,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-09 02:53:00,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-09 02:53:00,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-09 02:53:00,816 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[172521,172534] [2024-11-09 02:53:00,817 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[172881,172894] [2024-11-09 02:53:00,834 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[195820,195833] [2024-11-09 02:53:00,835 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i[195887,195900] [2024-11-09 02:53:00,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:53:01,188 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:53:01,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01 WrapperNode [2024-11-09 02:53:01,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:53:01,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:53:01,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:53:01,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:53:01,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,360 INFO L138 Inliner]: procedures = 923, calls = 945, calls flagged for inlining = 834, calls inlined = 53, statements flattened = 521 [2024-11-09 02:53:01,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:53:01,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:53:01,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:53:01,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:53:01,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,413 INFO L175 MemorySlicer]: Split 28 memory accesses to 3 slices as follows [2, 24, 2]. 86 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4, 0]. The 10 writes are split as follows [0, 9, 1]. [2024-11-09 02:53:01,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:53:01,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:53:01,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:53:01,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:53:01,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (1/1) ... [2024-11-09 02:53:01,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:53:01,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:53:01,499 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) [2024-11-09 02:53:01,501 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 [2024-11-09 02:53:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:53:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:53:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:53:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-09 02:53:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:53:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:53:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:53:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:53:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:53:01,549 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:53:01,758 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:53:01,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:53:02,415 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:53:02,415 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:53:02,772 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:53:02,773 INFO L316 CfgBuilder]: Removed 77 assume(true) statements. [2024-11-09 02:53:02,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:53:02 BoogieIcfgContainer [2024-11-09 02:53:02,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:53:02,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:53:02,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:53:02,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:53:02,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:52:58" (1/3) ... [2024-11-09 02:53:02,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ab42fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:53:02, skipping insertion in model container [2024-11-09 02:53:02,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:53:01" (2/3) ... [2024-11-09 02:53:02,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ab42fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:53:02, skipping insertion in model container [2024-11-09 02:53:02,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:53:02" (3/3) ... [2024-11-09 02:53:02,783 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_ticketlock.i [2024-11-09 02:53:02,802 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:53:02,802 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 02:53:02,803 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:53:02,917 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 02:53:02,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 210 transitions, 427 flow [2024-11-09 02:53:03,033 INFO L124 PetriNetUnfolderBase]: 90/240 cut-off events. [2024-11-09 02:53:03,034 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 02:53:03,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 240 events. 90/240 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 716 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 194. Up to 6 conditions per place. [2024-11-09 02:53:03,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 210 transitions, 427 flow [2024-11-09 02:53:03,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 210 transitions, 427 flow [2024-11-09 02:53:03,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:53:03,079 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7866dc88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:53:03,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 02:53:03,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:53:03,090 INFO L124 PetriNetUnfolderBase]: 13/40 cut-off events. [2024-11-09 02:53:03,091 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:53:03,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:53:03,092 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 02:53:03,096 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:53:03,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:53:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash 73735167, now seen corresponding path program 1 times [2024-11-09 02:53:03,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:53:03,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384590127] [2024-11-09 02:53:03,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:53:03,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:53:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:53:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:53:03,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:53:03,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384590127] [2024-11-09 02:53:03,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384590127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:53:03,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:53:03,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:53:03,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87840147] [2024-11-09 02:53:03,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:53:03,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 02:53:03,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:53:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 02:53:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 02:53:03,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 210 [2024-11-09 02:53:03,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 210 transitions, 427 flow. Second operand has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 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) [2024-11-09 02:53:03,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:53:03,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 210 [2024-11-09 02:53:03,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:53:03,812 INFO L124 PetriNetUnfolderBase]: 598/1563 cut-off events. [2024-11-09 02:53:03,812 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 02:53:03,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2727 conditions, 1563 events. 598/1563 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 10130 event pairs, 480 based on Foata normal form. 958/2249 useless extension candidates. Maximal degree in co-relation 2675. Up to 1159 conditions per place. [2024-11-09 02:53:03,823 INFO L140 encePairwiseOnDemand]: 145/210 looper letters, 87 selfloop transitions, 0 changer transitions 0/145 dead transitions. [2024-11-09 02:53:03,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 145 transitions, 471 flow [2024-11-09 02:53:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 02:53:03,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 02:53:03,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 268 transitions. [2024-11-09 02:53:03,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.638095238095238 [2024-11-09 02:53:03,840 INFO L175 Difference]: Start difference. First operand has 134 places, 210 transitions, 427 flow. Second operand 2 states and 268 transitions. [2024-11-09 02:53:03,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 145 transitions, 471 flow [2024-11-09 02:53:03,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 471 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 02:53:03,848 INFO L231 Difference]: Finished difference. Result has 135 places, 145 transitions, 297 flow [2024-11-09 02:53:03,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=297, PETRI_PLACES=135, PETRI_TRANSITIONS=145} [2024-11-09 02:53:03,856 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 1 predicate places. [2024-11-09 02:53:03,856 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 145 transitions, 297 flow [2024-11-09 02:53:03,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 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) [2024-11-09 02:53:03,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:53:03,857 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:53:03,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:53:03,857 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:53:03,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:53:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash 816645446, now seen corresponding path program 1 times [2024-11-09 02:53:03,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:53:03,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743249389] [2024-11-09 02:53:03,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:53:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:53:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:53:03,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:53:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:53:04,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:53:04,001 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:53:04,002 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-09 02:53:04,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-09 02:53:04,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-09 02:53:04,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-11-09 02:53:04,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-11-09 02:53:04,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-09 02:53:04,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-09 02:53:04,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:53:04,007 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 02:53:04,011 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:53:04,011 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 02:53:04,154 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 02:53:04,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 375 transitions, 766 flow [2024-11-09 02:53:04,275 INFO L124 PetriNetUnfolderBase]: 171/457 cut-off events. [2024-11-09 02:53:04,275 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 02:53:04,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 457 events. 171/457 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1893 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 377. Up to 12 conditions per place. [2024-11-09 02:53:04,286 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 375 transitions, 766 flow [2024-11-09 02:53:04,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 238 places, 375 transitions, 766 flow [2024-11-09 02:53:04,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:53:04,302 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7866dc88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:53:04,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-09 02:53:04,309 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:53:04,309 INFO L124 PetriNetUnfolderBase]: 21/62 cut-off events. [2024-11-09 02:53:04,309 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 02:53:04,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:53:04,310 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:53:04,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-09 02:53:04,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:53:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash -400654450, now seen corresponding path program 1 times [2024-11-09 02:53:04,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:53:04,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324762835] [2024-11-09 02:53:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:53:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:53:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:53:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:53:04,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:53:04,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324762835] [2024-11-09 02:53:04,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324762835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:53:04,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:53:04,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:53:04,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877469462] [2024-11-09 02:53:04,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:53:04,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 02:53:04,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:53:04,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 02:53:04,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 02:53:04,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 375 [2024-11-09 02:53:04,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 375 transitions, 766 flow. Second operand has 2 states, 2 states have (on average 102.5) internal successors, (205), 2 states have internal predecessors, (205), 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) [2024-11-09 02:53:04,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:53:04,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 375 [2024-11-09 02:53:04,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:53:16,788 INFO L124 PetriNetUnfolderBase]: 77592/130642 cut-off events. [2024-11-09 02:53:16,788 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-09 02:53:17,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242962 conditions, 130642 events. 77592/130642 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 3353. Compared 1241981 event pairs, 63060 based on Foata normal form. 79721/186905 useless extension candidates. Maximal degree in co-relation 228112. Up to 112008 conditions per place. [2024-11-09 02:53:17,586 INFO L140 encePairwiseOnDemand]: 261/375 looper letters, 162 selfloop transitions, 0 changer transitions 0/261 dead transitions. [2024-11-09 02:53:17,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 261 transitions, 862 flow [2024-11-09 02:53:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 02:53:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 02:53:17,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 474 transitions. [2024-11-09 02:53:17,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.632 [2024-11-09 02:53:17,591 INFO L175 Difference]: Start difference. First operand has 238 places, 375 transitions, 766 flow. Second operand 2 states and 474 transitions. [2024-11-09 02:53:17,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 261 transitions, 862 flow [2024-11-09 02:53:17,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 261 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 02:53:17,603 INFO L231 Difference]: Finished difference. Result has 239 places, 261 transitions, 538 flow [2024-11-09 02:53:17,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=538, PETRI_PLACES=239, PETRI_TRANSITIONS=261} [2024-11-09 02:53:17,607 INFO L277 CegarLoopForPetriNet]: 238 programPoint places, 1 predicate places. [2024-11-09 02:53:17,607 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 261 transitions, 538 flow [2024-11-09 02:53:17,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 102.5) internal successors, (205), 2 states have internal predecessors, (205), 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) [2024-11-09 02:53:17,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:53:17,608 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:53:17,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:53:17,608 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-09 02:53:17,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:53:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1456263292, now seen corresponding path program 1 times [2024-11-09 02:53:17,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:53:17,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135727784] [2024-11-09 02:53:17,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:53:17,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:53:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:53:17,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 02:53:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 02:53:17,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 02:53:17,750 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 02:53:17,750 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-09 02:53:17,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-11-09 02:53:17,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-11-09 02:53:17,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2024-11-09 02:53:17,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2024-11-09 02:53:17,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-11-09 02:53:17,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-11-09 02:53:17,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-11-09 02:53:17,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-11-09 02:53:17,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:53:17,755 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 02:53:17,756 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 02:53:17,756 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 02:53:17,950 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 02:53:17,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 342 places, 540 transitions, 1107 flow [2024-11-09 02:53:18,085 INFO L124 PetriNetUnfolderBase]: 267/715 cut-off events. [2024-11-09 02:53:18,086 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 02:53:18,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 715 events. 267/715 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3451 event pairs, 1 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 582. Up to 24 conditions per place. [2024-11-09 02:53:18,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 342 places, 540 transitions, 1107 flow [2024-11-09 02:53:18,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 342 places, 540 transitions, 1107 flow [2024-11-09 02:53:18,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:53:18,147 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7866dc88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:53:18,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-09 02:53:18,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:53:18,153 INFO L124 PetriNetUnfolderBase]: 21/62 cut-off events. [2024-11-09 02:53:18,153 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 02:53:18,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:53:18,153 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:53:18,153 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-09 02:53:18,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:53:18,154 INFO L85 PathProgramCache]: Analyzing trace with hash 357069738, now seen corresponding path program 1 times [2024-11-09 02:53:18,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:53:18,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176303369] [2024-11-09 02:53:18,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:53:18,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:53:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:53:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:53:18,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:53:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176303369] [2024-11-09 02:53:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176303369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:53:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:53:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:53:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255439508] [2024-11-09 02:53:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:53:18,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 02:53:18,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:53:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 02:53:18,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 02:53:18,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 540 [2024-11-09 02:53:18,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 540 transitions, 1107 flow. Second operand has 2 states, 2 states have (on average 143.5) internal successors, (287), 2 states have internal predecessors, (287), 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) [2024-11-09 02:53:18,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:53:18,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 540 [2024-11-09 02:53:18,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand