./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/hclhlock.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 b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:47:56,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:47:56,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:47:56,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:47:56,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:47:56,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:47:56,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:47:56,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:47:56,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:47:56,083 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:47:56,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:47:56,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:47:56,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:47:56,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:47:56,083 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:47:56,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:47:56,084 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:47:56,086 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:47:56,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:47:56,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:47:56,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:47:56,087 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2025-03-17 19:47:56,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:47:56,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:47:56,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:47:56,293 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:47:56,293 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:47:56,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/hclhlock.i [2025-03-17 19:47:56,816 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691ff29f3/5097c606b65a4c1faab862998c7b13e7/FLAG484d134cf [2025-03-17 19:47:57,444 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:47:57,445 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2025-03-17 19:47:57,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691ff29f3/5097c606b65a4c1faab862998c7b13e7/FLAG484d134cf [2025-03-17 19:47:59,315 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691ff29f3/5097c606b65a4c1faab862998c7b13e7 [2025-03-17 19:47:59,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:47:59,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:47:59,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:47:59,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:47:59,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:47:59,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:47:59" (1/1) ... [2025-03-17 19:47:59,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f398b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:59, skipping insertion in model container [2025-03-17 19:47:59,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:47:59" (1/1) ... [2025-03-17 19:47:59,377 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:48:00,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:48:00,941 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:48:00,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-17 19:48:00,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-17 19:48:00,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-17 19:48:00,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-17 19:48:00,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-17 19:48:00,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-17 19:48:00,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-17 19:48:00,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-17 19:48:00,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-17 19:48:00,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-17 19:48:00,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-17 19:48:00,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-17 19:48:00,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-17 19:48:01,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-17 19:48:01,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-17 19:48:01,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-17 19:48:01,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-17 19:48:01,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-17 19:48:01,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-17 19:48:01,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-17 19:48:01,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-17 19:48:01,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-17 19:48:01,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-17 19:48:01,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-17 19:48:01,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-17 19:48:01,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-17 19:48:01,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-17 19:48:01,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-17 19:48:01,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-17 19:48:01,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-17 19:48:01,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-17 19:48:01,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-17 19:48:01,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-17 19:48:01,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-17 19:48:01,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-17 19:48:01,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-17 19:48:01,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-17 19:48:01,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-17 19:48:01,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-17 19:48:01,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-17 19:48:01,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-17 19:48:01,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-17 19:48:01,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-17 19:48:01,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-17 19:48:01,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-17 19:48:01,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-17 19:48:01,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-17 19:48:01,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-17 19:48:01,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-17 19:48:01,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-17 19:48:01,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-17 19:48:01,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-17 19:48:01,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-17 19:48:01,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-17 19:48:01,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-17 19:48:01,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-17 19:48:01,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-17 19:48:01,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-17 19:48:01,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-17 19:48:01,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-17 19:48:01,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-17 19:48:01,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-17 19:48:01,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-17 19:48:01,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-17 19:48:01,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-17 19:48:01,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-17 19:48:01,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-17 19:48:01,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-17 19:48:01,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-17 19:48:01,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-17 19:48:01,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-17 19:48:01,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-17 19:48:01,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-17 19:48:01,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-17 19:48:01,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-17 19:48:01,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-17 19:48:01,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-17 19:48:01,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-17 19:48:01,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-17 19:48:01,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-17 19:48:01,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-17 19:48:01,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-17 19:48:01,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-17 19:48:01,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-17 19:48:01,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-17 19:48:01,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-17 19:48:01,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-17 19:48:01,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-17 19:48:01,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-17 19:48:01,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-17 19:48:01,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-17 19:48:01,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-17 19:48:01,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-17 19:48:01,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-17 19:48:01,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-17 19:48:01,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-17 19:48:01,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-17 19:48:01,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-17 19:48:01,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-17 19:48:01,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-17 19:48:01,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:48:01,249 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:48:01,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01 WrapperNode [2025-03-17 19:48:01,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:48:01,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:48:01,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:48:01,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:48:01,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,386 INFO L138 Inliner]: procedures = 921, calls = 972, calls flagged for inlining = 848, calls inlined = 84, statements flattened = 856 [2025-03-17 19:48:01,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:48:01,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:48:01,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:48:01,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:48:01,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,427 INFO L175 MemorySlicer]: Split 50 memory accesses to 4 slices as follows [2, 28, 18, 2]. 56 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 7, 6, 0]. The 15 writes are split as follows [0, 9, 5, 1]. [2025-03-17 19:48:01,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,427 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,440 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:48:01,456 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:48:01,456 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:48:01,456 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:48:01,457 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (1/1) ... [2025-03-17 19:48:01,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:48:01,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:48:01,485 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) [2025-03-17 19:48:01,488 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 [2025-03-17 19:48:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 19:48:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:48:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:48:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-17 19:48:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-17 19:48:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 19:48:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 19:48:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 19:48:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 19:48:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 19:48:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:48:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 19:48:01,510 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:48:01,654 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:48:01,655 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:48:02,420 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-10: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-20: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-30: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1920: havoc vatomic32_cmpxchg_rlx_#t~ret117#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890-10: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2290: havoc vatomic32_await_neq_acq_#t~ret175#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2290-10: havoc vatomic32_await_neq_acq_#t~ret175#1; [2025-03-17 19:48:02,421 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3660: havoc vatomicptr_read_acq_#t~ret413#1.base, vatomicptr_read_acq_#t~ret413#1.offset; [2025-03-17 19:48:02,662 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6115: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-17 19:48:02,663 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6115-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-17 19:48:02,664 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:48:02,664 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:48:03,001 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:48:03,001 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:48:03,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:48:03 BoogieIcfgContainer [2025-03-17 19:48:03,002 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:48:03,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:48:03,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:48:03,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:48:03,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:47:59" (1/3) ... [2025-03-17 19:48:03,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5a9944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:48:03, skipping insertion in model container [2025-03-17 19:48:03,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:48:01" (2/3) ... [2025-03-17 19:48:03,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5a9944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:48:03, skipping insertion in model container [2025-03-17 19:48:03,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:48:03" (3/3) ... [2025-03-17 19:48:03,008 INFO L128 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2025-03-17 19:48:03,022 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:48:03,023 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hclhlock.i that has 2 procedures, 201 locations, 1 initial locations, 42 loop locations, and 6 error locations. [2025-03-17 19:48:03,023 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:48:03,132 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 19:48:03,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 324 transitions, 655 flow [2025-03-17 19:48:03,238 INFO L124 PetriNetUnfolderBase]: 132/346 cut-off events. [2025-03-17 19:48:03,242 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 19:48:03,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 346 events. 132/346 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 948 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 269. Up to 8 conditions per place. [2025-03-17 19:48:03,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 324 transitions, 655 flow [2025-03-17 19:48:03,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 322 transitions, 648 flow [2025-03-17 19:48:03,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:48:03,296 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;@349a4b40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:48:03,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-17 19:48:03,311 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:48:03,311 INFO L124 PetriNetUnfolderBase]: 26/68 cut-off events. [2025-03-17 19:48:03,311 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:48:03,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:03,312 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:03,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-17 19:48:03,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash 124752148, now seen corresponding path program 1 times [2025-03-17 19:48:03,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:03,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772189321] [2025-03-17 19:48:03,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:03,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:03,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:48:03,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:48:03,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:03,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:48:03,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:48:03,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772189321] [2025-03-17 19:48:03,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772189321] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:48:03,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:48:03,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:48:03,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089919790] [2025-03-17 19:48:03,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:48:03,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 19:48:03,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:48:03,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 19:48:03,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 19:48:03,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 324 [2025-03-17 19:48:03,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 322 transitions, 648 flow. Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 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) [2025-03-17 19:48:03,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:48:03,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 324 [2025-03-17 19:48:03,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:48:04,202 INFO L124 PetriNetUnfolderBase]: 1272/3001 cut-off events. [2025-03-17 19:48:04,202 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:48:04,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5343 conditions, 3001 events. 1272/3001 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18579 event pairs, 970 based on Foata normal form. 700/3331 useless extension candidates. Maximal degree in co-relation 5249. Up to 2338 conditions per place. [2025-03-17 19:48:04,218 INFO L140 encePairwiseOnDemand]: 234/324 looper letters, 158 selfloop transitions, 0 changer transitions 0/232 dead transitions. [2025-03-17 19:48:04,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 232 transitions, 784 flow [2025-03-17 19:48:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 19:48:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 19:48:04,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 396 transitions. [2025-03-17 19:48:04,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2025-03-17 19:48:04,234 INFO L175 Difference]: Start difference. First operand has 203 places, 322 transitions, 648 flow. Second operand 2 states and 396 transitions. [2025-03-17 19:48:04,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 232 transitions, 784 flow [2025-03-17 19:48:04,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 232 transitions, 784 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:48:04,244 INFO L231 Difference]: Finished difference. Result has 204 places, 232 transitions, 468 flow [2025-03-17 19:48:04,246 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=468, PETRI_PLACES=204, PETRI_TRANSITIONS=232} [2025-03-17 19:48:04,248 INFO L279 CegarLoopForPetriNet]: 203 programPoint places, 1 predicate places. [2025-03-17 19:48:04,249 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 232 transitions, 468 flow [2025-03-17 19:48:04,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 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) [2025-03-17 19:48:04,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:04,249 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:04,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:48:04,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-17 19:48:04,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:04,250 INFO L85 PathProgramCache]: Analyzing trace with hash 113696450, now seen corresponding path program 1 times [2025-03-17 19:48:04,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:04,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086256268] [2025-03-17 19:48:04,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:04,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:04,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:48:04,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:48:04,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:04,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:48:04,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:48:04,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086256268] [2025-03-17 19:48:04,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086256268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:48:04,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:48:04,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:48:04,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910585001] [2025-03-17 19:48:04,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:48:04,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:48:04,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:48:04,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:48:04,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:48:04,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 324 [2025-03-17 19:48:04,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 232 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2025-03-17 19:48:04,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:48:04,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 324 [2025-03-17 19:48:04,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:48:04,949 INFO L124 PetriNetUnfolderBase]: 1272/3004 cut-off events. [2025-03-17 19:48:04,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:48:04,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5350 conditions, 3004 events. 1272/3004 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18554 event pairs, 970 based on Foata normal form. 0/2634 useless extension candidates. Maximal degree in co-relation 5346. Up to 2334 conditions per place. [2025-03-17 19:48:04,961 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 159 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2025-03-17 19:48:04,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 235 transitions, 796 flow [2025-03-17 19:48:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:48:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:48:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2025-03-17 19:48:04,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3950617283950617 [2025-03-17 19:48:04,963 INFO L175 Difference]: Start difference. First operand has 204 places, 232 transitions, 468 flow. Second operand 3 states and 384 transitions. [2025-03-17 19:48:04,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 235 transitions, 796 flow [2025-03-17 19:48:04,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 235 transitions, 796 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:48:04,970 INFO L231 Difference]: Finished difference. Result has 207 places, 233 transitions, 480 flow [2025-03-17 19:48:04,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=207, PETRI_TRANSITIONS=233} [2025-03-17 19:48:04,972 INFO L279 CegarLoopForPetriNet]: 203 programPoint places, 4 predicate places. [2025-03-17 19:48:04,972 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 233 transitions, 480 flow [2025-03-17 19:48:04,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2025-03-17 19:48:04,972 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:04,973 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:04,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:48:04,973 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-17 19:48:04,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:04,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1222505359, now seen corresponding path program 1 times [2025-03-17 19:48:04,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:04,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120174008] [2025-03-17 19:48:04,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:04,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:05,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:48:05,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:48:05,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:05,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:48:05,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:48:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120174008] [2025-03-17 19:48:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120174008] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:48:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859033822] [2025-03-17 19:48:05,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:05,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:48:05,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:48:05,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:48:05,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:48:05,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:48:05,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:48:05,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:05,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:05,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:48:05,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:48:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:48:05,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:48:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:48:05,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859033822] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 19:48:05,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 19:48:05,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2025-03-17 19:48:05,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112673681] [2025-03-17 19:48:05,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:48:05,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:48:05,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:48:05,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:48:05,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:48:05,384 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 324 [2025-03-17 19:48:05,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 233 transitions, 480 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2025-03-17 19:48:05,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:48:05,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 324 [2025-03-17 19:48:05,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:48:06,083 INFO L124 PetriNetUnfolderBase]: 1272/3005 cut-off events. [2025-03-17 19:48:06,083 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:48:06,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5359 conditions, 3005 events. 1272/3005 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18467 event pairs, 970 based on Foata normal form. 0/2636 useless extension candidates. Maximal degree in co-relation 5353. Up to 2326 conditions per place. [2025-03-17 19:48:06,095 INFO L140 encePairwiseOnDemand]: 320/324 looper letters, 157 selfloop transitions, 3 changer transitions 0/234 dead transitions. [2025-03-17 19:48:06,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 234 transitions, 802 flow [2025-03-17 19:48:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:48:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:48:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2025-03-17 19:48:06,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39300411522633744 [2025-03-17 19:48:06,097 INFO L175 Difference]: Start difference. First operand has 207 places, 233 transitions, 480 flow. Second operand 3 states and 382 transitions. [2025-03-17 19:48:06,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 234 transitions, 802 flow [2025-03-17 19:48:06,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 234 transitions, 800 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:48:06,101 INFO L231 Difference]: Finished difference. Result has 210 places, 234 transitions, 496 flow [2025-03-17 19:48:06,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=210, PETRI_TRANSITIONS=234} [2025-03-17 19:48:06,102 INFO L279 CegarLoopForPetriNet]: 203 programPoint places, 7 predicate places. [2025-03-17 19:48:06,102 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 234 transitions, 496 flow [2025-03-17 19:48:06,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2025-03-17 19:48:06,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:06,102 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:06,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 19:48:06,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:48:06,303 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-17 19:48:06,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1339067398, now seen corresponding path program 1 times [2025-03-17 19:48:06,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:06,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766408294] [2025-03-17 19:48:06,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:06,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:06,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 19:48:06,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 19:48:06,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:06,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:06,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:48:06,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:48:06,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766408294] [2025-03-17 19:48:06,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766408294] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:48:06,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556741217] [2025-03-17 19:48:06,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:06,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:48:06,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:48:06,479 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:48:06,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 19:48:06,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 19:48:06,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 19:48:06,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:06,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:06,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 19:48:06,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:48:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:48:06,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:48:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:48:06,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556741217] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:48:06,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:48:06,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 10 [2025-03-17 19:48:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868684213] [2025-03-17 19:48:06,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:48:06,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 19:48:06,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:48:06,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 19:48:06,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:48:06,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 324 [2025-03-17 19:48:06,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 234 transitions, 496 flow. Second operand has 10 states, 10 states have (on average 80.4) internal successors, (804), 10 states have internal predecessors, (804), 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) [2025-03-17 19:48:06,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:48:06,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 324 [2025-03-17 19:48:06,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:48:07,799 INFO L124 PetriNetUnfolderBase]: 1278/3054 cut-off events. [2025-03-17 19:48:07,800 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-17 19:48:07,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5458 conditions, 3054 events. 1278/3054 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18509 event pairs, 970 based on Foata normal form. 3/2689 useless extension candidates. Maximal degree in co-relation 5451. Up to 2319 conditions per place. [2025-03-17 19:48:07,814 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 187 selfloop transitions, 8 changer transitions 0/269 dead transitions. [2025-03-17 19:48:07,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 269 transitions, 974 flow [2025-03-17 19:48:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:48:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:48:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 716 transitions. [2025-03-17 19:48:07,817 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31569664902998235 [2025-03-17 19:48:07,818 INFO L175 Difference]: Start difference. First operand has 210 places, 234 transitions, 496 flow. Second operand 7 states and 716 transitions. [2025-03-17 19:48:07,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 269 transitions, 974 flow [2025-03-17 19:48:07,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 269 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:48:07,822 INFO L231 Difference]: Finished difference. Result has 218 places, 238 transitions, 542 flow [2025-03-17 19:48:07,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=542, PETRI_PLACES=218, PETRI_TRANSITIONS=238} [2025-03-17 19:48:07,823 INFO L279 CegarLoopForPetriNet]: 203 programPoint places, 15 predicate places. [2025-03-17 19:48:07,823 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 238 transitions, 542 flow [2025-03-17 19:48:07,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.4) internal successors, (804), 10 states have internal predecessors, (804), 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) [2025-03-17 19:48:07,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:07,824 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:07,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 19:48:08,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-17 19:48:08,025 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-17 19:48:08,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:08,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1426709731, now seen corresponding path program 2 times [2025-03-17 19:48:08,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:08,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330519240] [2025-03-17 19:48:08,026 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:48:08,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:08,056 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-17 19:48:08,163 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 19:48:08,163 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:48:08,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 19:48:08,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:48:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330519240] [2025-03-17 19:48:08,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330519240] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:48:08,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137002175] [2025-03-17 19:48:08,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:48:08,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:48:08,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:48:08,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:48:08,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 19:48:08,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-17 19:48:09,204 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 19:48:09,204 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:48:09,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:09,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-17 19:48:09,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:48:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 19:48:09,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:48:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 19:48:09,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137002175] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:48:09,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:48:09,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2025-03-17 19:48:09,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749139686] [2025-03-17 19:48:09,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:48:09,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 19:48:09,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:48:09,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 19:48:09,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2025-03-17 19:48:10,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 324 [2025-03-17 19:48:10,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 238 transitions, 542 flow. Second operand has 16 states, 16 states have (on average 76.875) internal successors, (1230), 16 states have internal predecessors, (1230), 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) [2025-03-17 19:48:10,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:48:10,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 324 [2025-03-17 19:48:10,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:48:11,576 INFO L124 PetriNetUnfolderBase]: 1280/3090 cut-off events. [2025-03-17 19:48:11,576 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-03-17 19:48:11,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5552 conditions, 3090 events. 1280/3090 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18675 event pairs, 970 based on Foata normal form. 2/2716 useless extension candidates. Maximal degree in co-relation 5542. Up to 2329 conditions per place. [2025-03-17 19:48:11,588 INFO L140 encePairwiseOnDemand]: 313/324 looper letters, 198 selfloop transitions, 27 changer transitions 0/297 dead transitions. [2025-03-17 19:48:11,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 297 transitions, 1132 flow [2025-03-17 19:48:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 19:48:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-17 19:48:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1522 transitions. [2025-03-17 19:48:11,593 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2609739368998628 [2025-03-17 19:48:11,593 INFO L175 Difference]: Start difference. First operand has 218 places, 238 transitions, 542 flow. Second operand 18 states and 1522 transitions. [2025-03-17 19:48:11,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 297 transitions, 1132 flow [2025-03-17 19:48:11,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 297 transitions, 1128 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-17 19:48:11,598 INFO L231 Difference]: Finished difference. Result has 244 places, 262 transitions, 727 flow [2025-03-17 19:48:11,598 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=727, PETRI_PLACES=244, PETRI_TRANSITIONS=262} [2025-03-17 19:48:11,599 INFO L279 CegarLoopForPetriNet]: 203 programPoint places, 41 predicate places. [2025-03-17 19:48:11,599 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 262 transitions, 727 flow [2025-03-17 19:48:11,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 76.875) internal successors, (1230), 16 states have internal predecessors, (1230), 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) [2025-03-17 19:48:11,599 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:11,599 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:11,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 19:48:11,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:48:11,800 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-17 19:48:11,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1339339909, now seen corresponding path program 1 times [2025-03-17 19:48:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:11,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118727765] [2025-03-17 19:48:11,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:11,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:11,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-17 19:48:11,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-17 19:48:11,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:11,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-17 19:48:12,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:48:12,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118727765] [2025-03-17 19:48:12,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118727765] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:48:12,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:48:12,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:48:12,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601760929] [2025-03-17 19:48:12,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:48:12,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:48:12,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:48:12,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:48:12,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:48:12,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 324 [2025-03-17 19:48:12,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 262 transitions, 727 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2025-03-17 19:48:12,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:48:12,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 324 [2025-03-17 19:48:12,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:48:12,514 INFO L124 PetriNetUnfolderBase]: 1272/3062 cut-off events. [2025-03-17 19:48:12,514 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2025-03-17 19:48:12,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5567 conditions, 3062 events. 1272/3062 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 18541 event pairs, 970 based on Foata normal form. 4/2698 useless extension candidates. Maximal degree in co-relation 5546. Up to 2375 conditions per place. [2025-03-17 19:48:12,527 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 175 selfloop transitions, 6 changer transitions 0/252 dead transitions. [2025-03-17 19:48:12,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 252 transitions, 1045 flow [2025-03-17 19:48:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:48:12,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:48:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2025-03-17 19:48:12,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38477366255144035 [2025-03-17 19:48:12,529 INFO L175 Difference]: Start difference. First operand has 244 places, 262 transitions, 727 flow. Second operand 3 states and 374 transitions. [2025-03-17 19:48:12,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 252 transitions, 1045 flow [2025-03-17 19:48:12,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 252 transitions, 1026 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-17 19:48:12,535 INFO L231 Difference]: Finished difference. Result has 238 places, 252 transitions, 676 flow [2025-03-17 19:48:12,536 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=238, PETRI_TRANSITIONS=252} [2025-03-17 19:48:12,536 INFO L279 CegarLoopForPetriNet]: 203 programPoint places, 35 predicate places. [2025-03-17 19:48:12,536 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 252 transitions, 676 flow [2025-03-17 19:48:12,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2025-03-17 19:48:12,537 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:12,537 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:12,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:48:12,537 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-17 19:48:12,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:12,538 INFO L85 PathProgramCache]: Analyzing trace with hash -699541052, now seen corresponding path program 1 times [2025-03-17 19:48:12,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:12,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060013385] [2025-03-17 19:48:12,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:12,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:12,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-17 19:48:12,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-17 19:48:12,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:12,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:48:12,649 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:48:12,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-17 19:48:12,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-17 19:48:12,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:12,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:48:12,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:48:12,790 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 19:48:12,790 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2025-03-17 19:48:12,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-03-17 19:48:12,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-03-17 19:48:12,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-03-17 19:48:12,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:48:12,792 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2025-03-17 19:48:12,794 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 19:48:12,794 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 19:48:12,934 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 19:48:12,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 572 transitions, 1160 flow [2025-03-17 19:48:12,995 INFO L124 PetriNetUnfolderBase]: 241/632 cut-off events. [2025-03-17 19:48:12,995 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 19:48:13,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 632 events. 241/632 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2428 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 529. Up to 12 conditions per place. [2025-03-17 19:48:13,008 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 572 transitions, 1160 flow [2025-03-17 19:48:13,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 572 transitions, 1160 flow [2025-03-17 19:48:13,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:48:13,020 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;@349a4b40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:48:13,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-03-17 19:48:13,026 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:48:13,026 INFO L124 PetriNetUnfolderBase]: 48/121 cut-off events. [2025-03-17 19:48:13,027 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 19:48:13,027 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:48:13,027 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:48:13,027 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-17 19:48:13,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:48:13,027 INFO L85 PathProgramCache]: Analyzing trace with hash -48906830, now seen corresponding path program 1 times [2025-03-17 19:48:13,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:48:13,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291688896] [2025-03-17 19:48:13,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:48:13,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:48:13,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:48:13,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:48:13,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:48:13,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:48:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:48:13,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:48:13,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291688896] [2025-03-17 19:48:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291688896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:48:13,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:48:13,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:48:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825576826] [2025-03-17 19:48:13,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:48:13,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 19:48:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:48:13,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 19:48:13,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 19:48:13,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 572 [2025-03-17 19:48:13,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 572 transitions, 1160 flow. Second operand has 2 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 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) [2025-03-17 19:48:13,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:48:13,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 572 [2025-03-17 19:48:13,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand