./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/libvsync/ticketlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/ticketlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e9f7836ebdfb0849cf7f06257ab1fd414077ad21cfcb006a14459421df712fb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:10:26,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:10:26,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:10:26,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:10:26,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:10:26,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:10:26,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:10:26,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:10:26,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:10:26,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:10:26,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:10:26,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:10:26,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:10:26,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:10:26,270 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:10:26,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:10:26,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:10:26,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:10:26,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:10:26,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:10:26,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:10:26,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:10:26,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:10:26,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:10:26,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:10:26,275 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:10:26,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:10:26,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:10:26,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:10:26,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:10:26,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:10:26,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:10:26,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:10:26,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:10:26,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:10:26,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:10:26,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:10:26,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:10:26,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:10:26,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:10:26,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:10:26,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:10:26,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:10:26,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:10:26,278 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e9f7836ebdfb0849cf7f06257ab1fd414077ad21cfcb006a14459421df712fb [2024-11-19 14:10:26,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:10:26,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:10:26,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:10:26,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:10:26,550 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:10:26,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/ticketlock.i [2024-11-19 14:10:27,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:10:28,172 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:10:28,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/ticketlock.i [2024-11-19 14:10:28,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6ce0fc2/4430d8d3046b4aef8bb418ec1da99c48/FLAG74a16f3ba [2024-11-19 14:10:28,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6ce0fc2/4430d8d3046b4aef8bb418ec1da99c48 [2024-11-19 14:10:28,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:10:28,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:10:28,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:10:28,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:10:28,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:10:28,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:10:28" (1/1) ... [2024-11-19 14:10:28,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118b5604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:28, skipping insertion in model container [2024-11-19 14:10:28,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:10:28" (1/1) ... [2024-11-19 14:10:28,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:10:29,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:10:29,778 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:10:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-19 14:10:29,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-19 14:10:29,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-19 14:10:29,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-19 14:10:29,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-19 14:10:29,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-19 14:10:29,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-19 14:10:29,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-19 14:10:29,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-19 14:10:29,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-19 14:10:29,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-19 14:10:29,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-19 14:10:29,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-19 14:10:29,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-19 14:10:29,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-19 14:10:29,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-19 14:10:29,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-19 14:10:29,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-19 14:10:29,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-19 14:10:29,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-19 14:10:29,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-19 14:10:29,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-19 14:10:29,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-19 14:10:29,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-19 14:10:29,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-19 14:10:29,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-19 14:10:29,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-19 14:10:29,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-19 14:10:29,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-19 14:10:29,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-19 14:10:29,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-19 14:10:29,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-19 14:10:29,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-19 14:10:29,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-19 14:10:29,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-19 14:10:29,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-19 14:10:29,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-19 14:10:29,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-19 14:10:29,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-19 14:10:29,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-19 14:10:29,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-19 14:10:29,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-19 14:10:29,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-19 14:10:29,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-19 14:10:29,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-19 14:10:29,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-19 14:10:29,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-19 14:10:29,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-19 14:10:29,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-19 14:10:29,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-19 14:10:29,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-19 14:10:29,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-19 14:10:29,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-19 14:10:29,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-19 14:10:29,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-19 14:10:29,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-19 14:10:29,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-19 14:10:29,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-19 14:10:29,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-19 14:10:29,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-19 14:10:29,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-19 14:10:29,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-19 14:10:29,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-19 14:10:29,881 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-19 14:10:29,881 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-19 14:10:29,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-19 14:10:29,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-19 14:10:29,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-19 14:10:29,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-19 14:10:29,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-19 14:10:29,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-19 14:10:29,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-19 14:10:29,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-19 14:10:29,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-19 14:10:29,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-19 14:10:29,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-19 14:10:29,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-19 14:10:29,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-19 14:10:29,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-19 14:10:29,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-19 14:10:29,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-19 14:10:29,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-19 14:10:29,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-19 14:10:29,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-19 14:10:29,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-19 14:10:29,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-19 14:10:29,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-19 14:10:29,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-19 14:10:29,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-19 14:10:29,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-19 14:10:29,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-19 14:10:29,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-19 14:10:29,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-19 14:10:29,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-19 14:10:29,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-19 14:10:29,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-19 14:10:29,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-19 14:10:29,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-19 14:10:29,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-19 14:10:29,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-19 14:10:29,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:10:30,255 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:10:30,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30 WrapperNode [2024-11-19 14:10:30,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:10:30,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:10:30,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:10:30,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:10:30,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,384 INFO L138 Inliner]: procedures = 918, calls = 924, calls flagged for inlining = 825, calls inlined = 41, statements flattened = 414 [2024-11-19 14:10:30,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:10:30,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:10:30,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:10:30,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:10:30,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,400 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,427 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 10, 2]. 71 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0]. The 4 writes are split as follows [0, 3, 1]. [2024-11-19 14:10:30,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,427 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:10:30,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:10:30,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:10:30,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:10:30,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (1/1) ... [2024-11-19 14:10:30,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:10:30,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:10:30,504 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 14:10:30,511 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 14:10:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:10:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:10:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 14:10:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:10:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:10:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:10:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-19 14:10:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-19 14:10:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 14:10:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:10:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:10:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 14:10:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 14:10:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:10:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:10:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 14:10:30,560 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 14:10:30,696 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:10:30,699 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:10:31,128 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:10:31,128 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:10:31,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:10:31,382 INFO L316 CfgBuilder]: Removed 73 assume(true) statements. [2024-11-19 14:10:31,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:10:31 BoogieIcfgContainer [2024-11-19 14:10:31,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:10:31,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:10:31,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:10:31,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:10:31,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:10:28" (1/3) ... [2024-11-19 14:10:31,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a559100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:10:31, skipping insertion in model container [2024-11-19 14:10:31,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:10:30" (2/3) ... [2024-11-19 14:10:31,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a559100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:10:31, skipping insertion in model container [2024-11-19 14:10:31,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:10:31" (3/3) ... [2024-11-19 14:10:31,393 INFO L112 eAbstractionObserver]: Analyzing ICFG ticketlock.i [2024-11-19 14:10:31,414 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:10:31,415 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 14:10:31,415 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:10:31,510 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 14:10:31,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 178 transitions, 363 flow [2024-11-19 14:10:31,603 INFO L124 PetriNetUnfolderBase]: 75/202 cut-off events. [2024-11-19 14:10:31,603 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 14:10:31,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 202 events. 75/202 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 622 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 162. Up to 6 conditions per place. [2024-11-19 14:10:31,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 178 transitions, 363 flow [2024-11-19 14:10:31,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 176 transitions, 356 flow [2024-11-19 14:10:31,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:10:31,638 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;@233a63e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:10:31,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 14:10:31,652 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:10:31,653 INFO L124 PetriNetUnfolderBase]: 13/40 cut-off events. [2024-11-19 14:10:31,653 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:10:31,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:31,654 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:31,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:10:31,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:31,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1507607447, now seen corresponding path program 1 times [2024-11-19 14:10:31,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:31,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196871857] [2024-11-19 14:10:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:10:31,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:10:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:10:31,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:10:31,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196871857] [2024-11-19 14:10:31,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196871857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:10:31,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:10:31,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:10:31,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197914491] [2024-11-19 14:10:31,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:10:31,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 14:10:31,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:10:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 14:10:31,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 14:10:31,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 178 [2024-11-19 14:10:31,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 176 transitions, 356 flow. Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:31,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:10:31,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 178 [2024-11-19 14:10:31,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:10:32,246 INFO L124 PetriNetUnfolderBase]: 538/1505 cut-off events. [2024-11-19 14:10:32,247 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:10:32,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2566 conditions, 1505 events. 538/1505 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 9925 event pairs, 450 based on Foata normal form. 636/1912 useless extension candidates. Maximal degree in co-relation 2521. Up to 1057 conditions per place. [2024-11-19 14:10:32,257 INFO L140 encePairwiseOnDemand]: 121/178 looper letters, 67 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2024-11-19 14:10:32,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 119 transitions, 376 flow [2024-11-19 14:10:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 14:10:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 14:10:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 228 transitions. [2024-11-19 14:10:32,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6404494382022472 [2024-11-19 14:10:32,271 INFO L175 Difference]: Start difference. First operand has 114 places, 176 transitions, 356 flow. Second operand 2 states and 228 transitions. [2024-11-19 14:10:32,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 119 transitions, 376 flow [2024-11-19 14:10:32,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 119 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:10:32,277 INFO L231 Difference]: Finished difference. Result has 115 places, 119 transitions, 242 flow [2024-11-19 14:10:32,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=242, PETRI_PLACES=115, PETRI_TRANSITIONS=119} [2024-11-19 14:10:32,283 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 1 predicate places. [2024-11-19 14:10:32,283 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 119 transitions, 242 flow [2024-11-19 14:10:32,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:32,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:32,284 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:32,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:10:32,284 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:10:32,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:32,285 INFO L85 PathProgramCache]: Analyzing trace with hash -524738347, now seen corresponding path program 1 times [2024-11-19 14:10:32,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:32,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615025128] [2024-11-19 14:10:32,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:10:32,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:10:32,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:10:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:10:32,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:10:32,362 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 14:10:32,363 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-19 14:10:32,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-19 14:10:32,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-19 14:10:32,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-19 14:10:32,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-19 14:10:32,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-19 14:10:32,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-19 14:10:32,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-19 14:10:32,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-19 14:10:32,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-19 14:10:32,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-19 14:10:32,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-19 14:10:32,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-19 14:10:32,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:10:32,368 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 14:10:32,371 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 14:10:32,372 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 14:10:32,459 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 14:10:32,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 317 transitions, 650 flow [2024-11-19 14:10:32,494 INFO L124 PetriNetUnfolderBase]: 141/381 cut-off events. [2024-11-19 14:10:32,495 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 14:10:32,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 381 events. 141/381 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1590 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 313. Up to 12 conditions per place. [2024-11-19 14:10:32,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 317 transitions, 650 flow [2024-11-19 14:10:32,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 317 transitions, 650 flow [2024-11-19 14:10:32,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:10:32,509 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;@233a63e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:10:32,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-19 14:10:32,514 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:10:32,514 INFO L124 PetriNetUnfolderBase]: 24/76 cut-off events. [2024-11-19 14:10:32,514 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:10:32,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:32,514 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:32,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-19 14:10:32,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:32,515 INFO L85 PathProgramCache]: Analyzing trace with hash -252816288, now seen corresponding path program 1 times [2024-11-19 14:10:32,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:32,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600613894] [2024-11-19 14:10:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:10:32,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:10:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 14:10:32,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:10:32,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600613894] [2024-11-19 14:10:32,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600613894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:10:32,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:10:32,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:10:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519171804] [2024-11-19 14:10:32,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:10:32,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 14:10:32,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:10:32,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 14:10:32,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 14:10:32,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 317 [2024-11-19 14:10:32,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 317 transitions, 650 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:32,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:10:32,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 317 [2024-11-19 14:10:32,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:10:40,418 INFO L124 PetriNetUnfolderBase]: 52576/100241 cut-off events. [2024-11-19 14:10:40,418 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2024-11-19 14:10:40,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177218 conditions, 100241 events. 52576/100241 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 2743. Compared 1050741 event pairs, 44280 based on Foata normal form. 45548/129325 useless extension candidates. Maximal degree in co-relation 163425. Up to 76740 conditions per place. [2024-11-19 14:10:40,933 INFO L140 encePairwiseOnDemand]: 217/317 looper letters, 124 selfloop transitions, 0 changer transitions 0/217 dead transitions. [2024-11-19 14:10:40,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 217 transitions, 698 flow [2024-11-19 14:10:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 14:10:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 14:10:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 410 transitions. [2024-11-19 14:10:40,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466876971608833 [2024-11-19 14:10:40,942 INFO L175 Difference]: Start difference. First operand has 204 places, 317 transitions, 650 flow. Second operand 2 states and 410 transitions. [2024-11-19 14:10:40,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 217 transitions, 698 flow [2024-11-19 14:10:40,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 217 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:10:40,953 INFO L231 Difference]: Finished difference. Result has 205 places, 217 transitions, 450 flow [2024-11-19 14:10:40,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=450, PETRI_PLACES=205, PETRI_TRANSITIONS=217} [2024-11-19 14:10:40,954 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2024-11-19 14:10:40,958 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 217 transitions, 450 flow [2024-11-19 14:10:40,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:40,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:40,959 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:40,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:10:40,959 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-19 14:10:40,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:40,960 INFO L85 PathProgramCache]: Analyzing trace with hash 862820660, now seen corresponding path program 1 times [2024-11-19 14:10:40,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:40,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178064457] [2024-11-19 14:10:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:10:40,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:10:41,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:10:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:10:41,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:10:41,035 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 14:10:41,035 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-19 14:10:41,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-19 14:10:41,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-19 14:10:41,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-19 14:10:41,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-19 14:10:41,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:10:41,038 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 14:10:41,038 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 14:10:41,038 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 14:10:41,153 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:10:41,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 456 transitions, 939 flow [2024-11-19 14:10:41,218 INFO L124 PetriNetUnfolderBase]: 218/589 cut-off events. [2024-11-19 14:10:41,219 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 14:10:41,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 589 events. 218/589 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2821 event pairs, 1 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 480. Up to 24 conditions per place. [2024-11-19 14:10:41,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 456 transitions, 939 flow [2024-11-19 14:10:41,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 456 transitions, 939 flow [2024-11-19 14:10:41,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:10:41,246 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;@233a63e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:10:41,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-19 14:10:41,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:10:41,253 INFO L124 PetriNetUnfolderBase]: 49/148 cut-off events. [2024-11-19 14:10:41,253 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-19 14:10:41,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:10:41,254 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:10:41,254 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-19 14:10:41,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:10:41,255 INFO L85 PathProgramCache]: Analyzing trace with hash 767668488, now seen corresponding path program 1 times [2024-11-19 14:10:41,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:10:41,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236157189] [2024-11-19 14:10:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:10:41,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:10:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:10:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 14:10:41,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:10:41,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236157189] [2024-11-19 14:10:41,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236157189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:10:41,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:10:41,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:10:41,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100966876] [2024-11-19 14:10:41,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:10:41,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 14:10:41,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:10:41,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 14:10:41,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 14:10:41,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 456 [2024-11-19 14:10:41,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 456 transitions, 939 flow. Second operand has 2 states, 2 states have (on average 138.0) internal successors, (276), 2 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:10:41,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:10:41,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 456 [2024-11-19 14:10:41,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand