./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/libvsync/mcslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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/mcslock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 185c5ecec118867d41d6d4e251a2153dc547f1cc961cdbc2b790292b6debb75b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:31:31,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:31:31,492 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:31:31,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:31:31,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:31:31,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:31:31,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:31:31,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:31:31,525 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:31:31,525 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:31:31,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:31:31,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:31:31,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:31:31,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:31:31,527 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:31:31,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:31:31,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:31:31,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:31:31,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:31:31,528 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 -> 185c5ecec118867d41d6d4e251a2153dc547f1cc961cdbc2b790292b6debb75b [2025-03-04 15:31:31,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:31:31,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:31:31,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:31:31,771 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:31:31,771 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:31:31,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/mcslock.i [2025-03-04 15:31:32,913 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/418c824ff/cec817adb0ba4b5fb2f497267c4bfe12/FLAGe421ae93c [2025-03-04 15:31:33,337 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:31:33,337 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i [2025-03-04 15:31:33,380 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/418c824ff/cec817adb0ba4b5fb2f497267c4bfe12/FLAGe421ae93c [2025-03-04 15:31:33,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/418c824ff/cec817adb0ba4b5fb2f497267c4bfe12 [2025-03-04 15:31:33,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:31:33,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:31:33,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:31:33,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:31:33,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:31:33,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:31:33" (1/1) ... [2025-03-04 15:31:33,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fff1b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:33, skipping insertion in model container [2025-03-04 15:31:33,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:31:33" (1/1) ... [2025-03-04 15:31:33,569 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:31:35,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:31:35,142 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:31:35,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-04 15:31:35,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-04 15:31:35,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-04 15:31:35,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-04 15:31:35,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-04 15:31:35,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-04 15:31:35,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-04 15:31:35,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-04 15:31:35,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-04 15:31:35,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-04 15:31:35,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-04 15:31:35,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-04 15:31:35,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-04 15:31:35,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-04 15:31:35,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-04 15:31:35,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-04 15:31:35,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-04 15:31:35,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-04 15:31:35,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-04 15:31:35,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-04 15:31:35,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-04 15:31:35,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-04 15:31:35,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-04 15:31:35,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-04 15:31:35,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-04 15:31:35,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-04 15:31:35,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-04 15:31:35,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-04 15:31:35,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-04 15:31:35,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-04 15:31:35,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-04 15:31:35,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-04 15:31:35,255 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-04 15:31:35,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-04 15:31:35,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-04 15:31:35,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-04 15:31:35,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-04 15:31:35,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-04 15:31:35,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-04 15:31:35,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-04 15:31:35,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-04 15:31:35,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-04 15:31:35,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-04 15:31:35,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-04 15:31:35,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-04 15:31:35,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-04 15:31:35,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-04 15:31:35,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-04 15:31:35,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-04 15:31:35,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-04 15:31:35,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-04 15:31:35,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-04 15:31:35,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-04 15:31:35,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-04 15:31:35,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-04 15:31:35,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-04 15:31:35,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-04 15:31:35,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-04 15:31:35,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-04 15:31:35,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-04 15:31:35,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-04 15:31:35,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-04 15:31:35,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-04 15:31:35,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-04 15:31:35,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-04 15:31:35,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-04 15:31:35,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-04 15:31:35,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-04 15:31:35,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-04 15:31:35,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-04 15:31:35,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-04 15:31:35,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-04 15:31:35,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-04 15:31:35,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-04 15:31:35,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-04 15:31:35,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-04 15:31:35,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-04 15:31:35,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-04 15:31:35,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-04 15:31:35,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-04 15:31:35,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-04 15:31:35,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-04 15:31:35,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-04 15:31:35,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-04 15:31:35,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-04 15:31:35,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-04 15:31:35,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-04 15:31:35,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-04 15:31:35,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-04 15:31:35,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-04 15:31:35,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-04 15:31:35,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-04 15:31:35,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-04 15:31:35,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-04 15:31:35,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-04 15:31:35,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-04 15:31:35,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-04 15:31:35,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-04 15:31:35,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-04 15:31:35,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-04 15:31:35,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:31:35,518 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:31:35,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35 WrapperNode [2025-03-04 15:31:35,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:31:35,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:31:35,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:31:35,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:31:35,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,611 INFO L138 Inliner]: procedures = 919, calls = 935, calls flagged for inlining = 830, calls inlined = 57, statements flattened = 482 [2025-03-04 15:31:35,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:31:35,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:31:35,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:31:35,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:31:35,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,623 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,655 INFO L175 MemorySlicer]: Split 27 memory accesses to 4 slices as follows [2, 7, 16, 2]. 59 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 6, 0]. The 10 writes are split as follows [0, 3, 6, 1]. [2025-03-04 15:31:35,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,672 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:31:35,687 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:31:35,687 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:31:35,687 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:31:35,687 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (1/1) ... [2025-03-04 15:31:35,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:31:35,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:31:35,718 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) [2025-03-04 15:31:35,720 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 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 15:31:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:31:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-04 15:31:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 15:31:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:31:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:31:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 15:31:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 15:31:35,743 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:31:35,893 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:31:35,895 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:31:36,342 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc vatomic32_await_eq_acq_#t~ret174#1; [2025-03-04 15:31:36,342 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3710: havoc vatomicptr_await_neq_rlx_#t~ret421#1.base, vatomicptr_await_neq_rlx_#t~ret421#1.offset; [2025-03-04 15:31:36,342 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3655: havoc vatomicptr_read_rlx_#t~ret412#1.base, vatomicptr_read_rlx_#t~ret412#1.offset; [2025-03-04 15:31:36,342 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3660: havoc vatomicptr_read_acq_#t~ret413#1.base, vatomicptr_read_acq_#t~ret413#1.offset; [2025-03-04 15:31:36,342 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3700: havoc vatomicptr_cmpxchg_rel_#t~ret419#1.base, vatomicptr_cmpxchg_rel_#t~ret419#1.offset; [2025-03-04 15:31:36,410 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-04 15:31:36,410 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-04 15:31:36,411 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:31:36,411 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:31:36,627 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:31:36,627 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:31:36,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:31:36 BoogieIcfgContainer [2025-03-04 15:31:36,627 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:31:36,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:31:36,629 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:31:36,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:31:36,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:31:33" (1/3) ... [2025-03-04 15:31:36,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28abe7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:31:36, skipping insertion in model container [2025-03-04 15:31:36,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:31:35" (2/3) ... [2025-03-04 15:31:36,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28abe7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:31:36, skipping insertion in model container [2025-03-04 15:31:36,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:31:36" (3/3) ... [2025-03-04 15:31:36,636 INFO L128 eAbstractionObserver]: Analyzing ICFG mcslock.i [2025-03-04 15:31:36,650 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:31:36,651 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mcslock.i that has 2 procedures, 121 locations, 1 initial locations, 23 loop locations, and 6 error locations. [2025-03-04 15:31:36,651 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:31:36,760 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 15:31:36,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 199 transitions, 405 flow [2025-03-04 15:31:36,832 INFO L124 PetriNetUnfolderBase]: 87/221 cut-off events. [2025-03-04 15:31:36,835 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:31:36,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 221 events. 87/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 578 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 185. Up to 8 conditions per place. [2025-03-04 15:31:36,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 199 transitions, 405 flow [2025-03-04 15:31:36,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 197 transitions, 398 flow [2025-03-04 15:31:36,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:31:36,866 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;@4eaed54b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:31:36,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-04 15:31:36,879 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:31:36,879 INFO L124 PetriNetUnfolderBase]: 22/48 cut-off events. [2025-03-04 15:31:36,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:31:36,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:31:36,880 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-03-04 15:31:36,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:31:36,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:31:36,885 INFO L85 PathProgramCache]: Analyzing trace with hash -961372760, now seen corresponding path program 1 times [2025-03-04 15:31:36,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:31:36,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684991678] [2025-03-04 15:31:36,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:31:36,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:31:36,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:31:36,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:31:36,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:31:36,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:31:37,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:31:37,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:31:37,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684991678] [2025-03-04 15:31:37,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684991678] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:31:37,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:31:37,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:31:37,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186311434] [2025-03-04 15:31:37,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:31:37,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 15:31:37,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:31:37,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 15:31:37,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 15:31:37,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 199 [2025-03-04 15:31:37,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 197 transitions, 398 flow. Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2025-03-04 15:31:37,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:31:37,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 199 [2025-03-04 15:31:37,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:31:37,481 INFO L124 PetriNetUnfolderBase]: 843/1965 cut-off events. [2025-03-04 15:31:37,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:31:37,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3606 conditions, 1965 events. 843/1965 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 12331 event pairs, 700 based on Foata normal form. 488/2150 useless extension candidates. Maximal degree in co-relation 3567. Up to 1637 conditions per place. [2025-03-04 15:31:37,496 INFO L140 encePairwiseOnDemand]: 135/199 looper letters, 97 selfloop transitions, 0 changer transitions 0/133 dead transitions. [2025-03-04 15:31:37,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 133 transitions, 464 flow [2025-03-04 15:31:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 15:31:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 15:31:37,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 233 transitions. [2025-03-04 15:31:37,505 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.585427135678392 [2025-03-04 15:31:37,506 INFO L175 Difference]: Start difference. First operand has 123 places, 197 transitions, 398 flow. Second operand 2 states and 233 transitions. [2025-03-04 15:31:37,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 133 transitions, 464 flow [2025-03-04 15:31:37,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 133 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:31:37,513 INFO L231 Difference]: Finished difference. Result has 124 places, 133 transitions, 270 flow [2025-03-04 15:31:37,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=270, PETRI_PLACES=124, PETRI_TRANSITIONS=133} [2025-03-04 15:31:37,517 INFO L279 CegarLoopForPetriNet]: 123 programPoint places, 1 predicate places. [2025-03-04 15:31:37,517 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 133 transitions, 270 flow [2025-03-04 15:31:37,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2025-03-04 15:31:37,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:31:37,518 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:31:37,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:31:37,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:31:37,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:31:37,518 INFO L85 PathProgramCache]: Analyzing trace with hash 765030762, now seen corresponding path program 1 times [2025-03-04 15:31:37,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:31:37,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467232490] [2025-03-04 15:31:37,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:31:37,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:31:37,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:31:37,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:31:37,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:31:37,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:31:37,569 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:31:37,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:31:37,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:31:37,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:31:37,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:31:37,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:31:37,650 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 15:31:37,651 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-03-04 15:31:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-03-04 15:31:37,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:31:37,653 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 15:31:37,654 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 15:31:37,654 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 15:31:37,766 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 15:31:37,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 363 transitions, 742 flow [2025-03-04 15:31:37,813 INFO L124 PetriNetUnfolderBase]: 165/423 cut-off events. [2025-03-04 15:31:37,813 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 15:31:37,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 423 events. 165/423 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1593 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 361. Up to 12 conditions per place. [2025-03-04 15:31:37,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 363 transitions, 742 flow [2025-03-04 15:31:37,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 363 transitions, 742 flow [2025-03-04 15:31:37,829 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:31:37,829 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;@4eaed54b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:31:37,830 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-03-04 15:31:37,836 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:31:37,836 INFO L124 PetriNetUnfolderBase]: 41/92 cut-off events. [2025-03-04 15:31:37,837 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 15:31:37,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:31:37,837 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 15:31:37,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:31:37,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:31:37,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1240332366, now seen corresponding path program 1 times [2025-03-04 15:31:37,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:31:37,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787534247] [2025-03-04 15:31:37,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:31:37,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:31:37,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:31:37,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:31:37,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:31:37,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:31:37,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:31:37,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:31:37,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787534247] [2025-03-04 15:31:37,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787534247] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:31:37,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:31:37,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:31:37,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005238621] [2025-03-04 15:31:37,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:31:37,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 15:31:37,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:31:37,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 15:31:37,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 15:31:37,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 363 [2025-03-04 15:31:37,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 363 transitions, 742 flow. Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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) [2025-03-04 15:31:37,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:31:37,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 363 [2025-03-04 15:31:37,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:31:51,113 INFO L124 PetriNetUnfolderBase]: 129534/213658 cut-off events. [2025-03-04 15:31:51,113 INFO L125 PetriNetUnfolderBase]: For 617/617 co-relation queries the response was YES. [2025-03-04 15:31:51,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401941 conditions, 213658 events. 129534/213658 cut-off events. For 617/617 co-relation queries the response was YES. Maximal size of possible extension queue 4303. Compared 2007478 event pairs, 108435 based on Foata normal form. 49735/231407 useless extension candidates. Maximal degree in co-relation 382029. Up to 187921 conditions per place. [2025-03-04 15:31:52,188 INFO L140 encePairwiseOnDemand]: 249/363 looper letters, 184 selfloop transitions, 0 changer transitions 0/249 dead transitions. [2025-03-04 15:31:52,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 249 transitions, 882 flow [2025-03-04 15:31:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 15:31:52,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 15:31:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 428 transitions. [2025-03-04 15:31:52,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5895316804407713 [2025-03-04 15:31:52,191 INFO L175 Difference]: Start difference. First operand has 226 places, 363 transitions, 742 flow. Second operand 2 states and 428 transitions. [2025-03-04 15:31:52,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 249 transitions, 882 flow [2025-03-04 15:31:52,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 249 transitions, 882 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:31:52,196 INFO L231 Difference]: Finished difference. Result has 227 places, 249 transitions, 514 flow [2025-03-04 15:31:52,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=514, PETRI_PLACES=227, PETRI_TRANSITIONS=249} [2025-03-04 15:31:52,197 INFO L279 CegarLoopForPetriNet]: 226 programPoint places, 1 predicate places. [2025-03-04 15:31:52,197 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 249 transitions, 514 flow [2025-03-04 15:31:52,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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) [2025-03-04 15:31:52,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:31:52,198 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:31:52,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:31:52,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:31:52,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:31:52,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1705100464, now seen corresponding path program 1 times [2025-03-04 15:31:52,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:31:52,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172879514] [2025-03-04 15:31:52,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:31:52,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:31:52,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:31:52,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:31:52,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:31:52,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:31:52,252 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:31:52,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:31:52,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:31:52,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:31:52,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:31:52,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:31:52,287 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2025-03-04 15:31:52,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2025-03-04 15:31:52,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:31:52,289 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 15:31:52,289 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 15:31:52,289 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-04 15:31:52,645 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-04 15:31:52,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 527 transitions, 1081 flow [2025-03-04 15:31:52,750 INFO L124 PetriNetUnfolderBase]: 254/654 cut-off events. [2025-03-04 15:31:52,750 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-03-04 15:31:52,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 654 events. 254/654 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2998 event pairs, 1 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 553. Up to 24 conditions per place. [2025-03-04 15:31:52,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 527 transitions, 1081 flow [2025-03-04 15:31:52,786 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 527 transitions, 1081 flow [2025-03-04 15:31:52,787 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:31:52,788 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;@4eaed54b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:31:52,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-03-04 15:31:52,798 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:31:52,799 INFO L124 PetriNetUnfolderBase]: 65/149 cut-off events. [2025-03-04 15:31:52,799 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-03-04 15:31:52,799 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:31:52,800 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:31:52,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-04 15:31:52,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:31:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1722155353, now seen corresponding path program 1 times [2025-03-04 15:31:52,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:31:52,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243639403] [2025-03-04 15:31:52,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:31:52,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:31:52,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:31:52,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:31:52,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:31:52,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:31:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:31:52,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:31:52,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243639403] [2025-03-04 15:31:52,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243639403] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:31:52,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:31:52,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:31:52,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414552977] [2025-03-04 15:31:52,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:31:52,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 15:31:52,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:31:52,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 15:31:52,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 15:31:52,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 527 [2025-03-04 15:31:52,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 527 transitions, 1081 flow. Second operand has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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) [2025-03-04 15:31:52,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:31:52,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 527 [2025-03-04 15:31:52,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand