./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/libvsync/rec_mcslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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/rec_mcslock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:20:10,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:20:11,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:20:11,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:20:11,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:20:11,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:20:11,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:20:11,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:20:11,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:20:11,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:20:11,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:20:11,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:20:11,078 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:20:11,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:20:11,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:20:11,080 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:20:11,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:20:11,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:20:11,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:20:11,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:20:11,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:20:11,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:20:11,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:20:11,081 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 ! data-race) ) 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 -> 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 [2025-03-17 11:20:11,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:20:11,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:20:11,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:20:11,321 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:20:11,321 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:20:11,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/rec_mcslock.i [2025-03-17 11:20:12,464 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d764ddc/b3092b7ad2754b7c95781e0469408859/FLAGadc923b75 [2025-03-17 11:20:12,959 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:20:12,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i [2025-03-17 11:20:13,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d764ddc/b3092b7ad2754b7c95781e0469408859/FLAGadc923b75 [2025-03-17 11:20:13,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d764ddc/b3092b7ad2754b7c95781e0469408859 [2025-03-17 11:20:13,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:20:13,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:20:13,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:20:13,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:20:13,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:20:13,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425d401b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13, skipping insertion in model container [2025-03-17 11:20:13,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:20:15,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:20:15,187 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:20:15,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-17 11:20:15,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-17 11:20:15,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-17 11:20:15,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-17 11:20:15,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-17 11:20:15,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-17 11:20:15,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-17 11:20:15,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-17 11:20:15,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-17 11:20:15,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-17 11:20:15,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-17 11:20:15,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-17 11:20:15,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-17 11:20:15,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-17 11:20:15,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-17 11:20:15,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-17 11:20:15,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-17 11:20:15,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-17 11:20:15,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-17 11:20:15,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-17 11:20:15,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-17 11:20:15,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-17 11:20:15,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-17 11:20:15,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-17 11:20:15,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-17 11:20:15,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-17 11:20:15,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-17 11:20:15,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-17 11:20:15,298 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-17 11:20:15,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-17 11:20:15,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-17 11:20:15,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-17 11:20:15,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-17 11:20:15,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-17 11:20:15,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-17 11:20:15,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-17 11:20:15,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-17 11:20:15,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-17 11:20:15,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-17 11:20:15,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-17 11:20:15,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-17 11:20:15,303 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-17 11:20:15,303 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-17 11:20:15,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-17 11:20:15,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-17 11:20:15,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-17 11:20:15,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-17 11:20:15,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-17 11:20:15,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-17 11:20:15,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-17 11:20:15,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-17 11:20:15,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-17 11:20:15,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-17 11:20:15,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-17 11:20:15,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-17 11:20:15,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-17 11:20:15,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-17 11:20:15,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-17 11:20:15,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-17 11:20:15,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-17 11:20:15,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-17 11:20:15,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-17 11:20:15,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-17 11:20:15,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-17 11:20:15,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-17 11:20:15,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-17 11:20:15,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-17 11:20:15,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-17 11:20:15,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-17 11:20:15,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-17 11:20:15,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-17 11:20:15,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-17 11:20:15,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-17 11:20:15,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-17 11:20:15,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-17 11:20:15,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-17 11:20:15,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-17 11:20:15,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-17 11:20:15,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-17 11:20:15,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-17 11:20:15,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-17 11:20:15,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-17 11:20:15,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-17 11:20:15,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-17 11:20:15,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-17 11:20:15,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-17 11:20:15,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-17 11:20:15,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-17 11:20:15,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-17 11:20:15,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-17 11:20:15,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-17 11:20:15,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-17 11:20:15,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-17 11:20:15,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-17 11:20:15,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-17 11:20:15,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-17 11:20:15,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-17 11:20:15,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-17 11:20:15,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-17 11:20:15,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-17 11:20:15,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:20:15,566 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:20:15,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15 WrapperNode [2025-03-17 11:20:15,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:20:15,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:20:15,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:20:15,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:20:15,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,695 INFO L138 Inliner]: procedures = 924, calls = 955, calls flagged for inlining = 838, calls inlined = 56, statements flattened = 621 [2025-03-17 11:20:15,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:20:15,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:20:15,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:20:15,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:20:15,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,732 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:20:15,750 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:20:15,750 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:20:15,750 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:20:15,750 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (1/1) ... [2025-03-17 11:20:15,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:20:15,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:20:15,779 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 11:20:15,782 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 11:20:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 11:20:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:20:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-17 11:20:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:20:15,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:20:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-17 11:20:15,800 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-17 11:20:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:20:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-17 11:20:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 11:20:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:20:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-17 11:20:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:20:15,803 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 11:20:15,948 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:20:15,950 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:20:16,140 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6033: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-17 11:20:16,140 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6033-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-17 11:20:16,671 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 11:20:16,671 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc vatomic32_await_eq_acq_#t~ret174#1; [2025-03-17 11:20:16,671 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3710: havoc vatomicptr_await_neq_rlx_#t~ret421#1.base, vatomicptr_await_neq_rlx_#t~ret421#1.offset; [2025-03-17 11:20:16,671 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3655: havoc vatomicptr_read_rlx_#t~ret412#1.base, vatomicptr_read_rlx_#t~ret412#1.offset; [2025-03-17 11:20:16,671 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 11:20:16,672 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3700: havoc vatomicptr_cmpxchg_rel_#t~ret419#1.base, vatomicptr_cmpxchg_rel_#t~ret419#1.offset; [2025-03-17 11:20:16,672 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:20:16,673 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:20:16,803 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:20:16,803 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:20:16,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:20:16 BoogieIcfgContainer [2025-03-17 11:20:16,804 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:20:16,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:20:16,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:20:16,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:20:16,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:20:13" (1/3) ... [2025-03-17 11:20:16,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e389d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:20:16, skipping insertion in model container [2025-03-17 11:20:16,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:15" (2/3) ... [2025-03-17 11:20:16,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e389d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:20:16, skipping insertion in model container [2025-03-17 11:20:16,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:20:16" (3/3) ... [2025-03-17 11:20:16,811 INFO L128 eAbstractionObserver]: Analyzing ICFG rec_mcslock.i [2025-03-17 11:20:16,821 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:20:16,823 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rec_mcslock.i that has 2 procedures, 611 locations, 1 initial locations, 21 loop locations, and 29 error locations. [2025-03-17 11:20:16,823 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:20:17,002 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 11:20:17,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 614 places, 696 transitions, 1399 flow [2025-03-17 11:20:17,259 INFO L124 PetriNetUnfolderBase]: 99/771 cut-off events. [2025-03-17 11:20:17,262 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:20:17,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 771 events. 99/771 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2089 event pairs, 0 based on Foata normal form. 0/635 useless extension candidates. Maximal degree in co-relation 648. Up to 8 conditions per place. [2025-03-17 11:20:17,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 614 places, 696 transitions, 1399 flow [2025-03-17 11:20:17,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 614 places, 696 transitions, 1399 flow [2025-03-17 11:20:17,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:20:17,320 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;@32e90c8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:20:17,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2025-03-17 11:20:17,330 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:20:17,331 INFO L124 PetriNetUnfolderBase]: 12/68 cut-off events. [2025-03-17 11:20:17,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:20:17,331 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:17,332 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:17,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:17,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1540911080, now seen corresponding path program 1 times [2025-03-17 11:20:17,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:17,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106824815] [2025-03-17 11:20:17,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:17,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:17,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 11:20:17,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 11:20:17,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:17,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:17,500 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 11:20:17,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:17,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106824815] [2025-03-17 11:20:17,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106824815] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:17,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:17,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:17,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184204110] [2025-03-17 11:20:17,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:17,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:20:17,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:17,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:20:17,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:20:17,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 696 [2025-03-17 11:20:17,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 696 transitions, 1399 flow. Second operand has 2 states, 2 states have (on average 594.5) internal successors, (1189), 2 states have internal predecessors, (1189), 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 11:20:17,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:17,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 696 [2025-03-17 11:20:17,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:17,819 INFO L124 PetriNetUnfolderBase]: 13/660 cut-off events. [2025-03-17 11:20:17,819 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-17 11:20:17,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 660 events. 13/660 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1765 event pairs, 0 based on Foata normal form. 197/817 useless extension candidates. Maximal degree in co-relation 574. Up to 16 conditions per place. [2025-03-17 11:20:17,824 INFO L140 encePairwiseOnDemand]: 609/696 looper letters, 15 selfloop transitions, 0 changer transitions 0/603 dead transitions. [2025-03-17 11:20:17,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 603 transitions, 1243 flow [2025-03-17 11:20:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:20:17,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 11:20:17,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1290 transitions. [2025-03-17 11:20:17,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9267241379310345 [2025-03-17 11:20:17,844 INFO L175 Difference]: Start difference. First operand has 614 places, 696 transitions, 1399 flow. Second operand 2 states and 1290 transitions. [2025-03-17 11:20:17,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 603 transitions, 1243 flow [2025-03-17 11:20:17,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 594 places, 603 transitions, 1243 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:17,863 INFO L231 Difference]: Finished difference. Result has 594 places, 603 transitions, 1213 flow [2025-03-17 11:20:17,867 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=696, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1213, PETRI_PLACES=594, PETRI_TRANSITIONS=603} [2025-03-17 11:20:17,871 INFO L279 CegarLoopForPetriNet]: 614 programPoint places, -20 predicate places. [2025-03-17 11:20:17,871 INFO L471 AbstractCegarLoop]: Abstraction has has 594 places, 603 transitions, 1213 flow [2025-03-17 11:20:17,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 594.5) internal successors, (1189), 2 states have internal predecessors, (1189), 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 11:20:17,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:17,872 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:17,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:20:17,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:17,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:17,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1410366791, now seen corresponding path program 1 times [2025-03-17 11:20:17,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:17,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052058355] [2025-03-17 11:20:17,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:17,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:17,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 11:20:17,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 11:20:17,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:17,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:18,771 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 11:20:18,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:18,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052058355] [2025-03-17 11:20:18,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052058355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:18,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:18,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:20:18,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255618568] [2025-03-17 11:20:18,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:18,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:20:18,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:18,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:20:18,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:20:19,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 696 [2025-03-17 11:20:19,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 603 transitions, 1213 flow. Second operand has 6 states, 6 states have (on average 556.5) internal successors, (3339), 6 states have internal predecessors, (3339), 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 11:20:19,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:19,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 696 [2025-03-17 11:20:19,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:20,483 INFO L124 PetriNetUnfolderBase]: 835/7940 cut-off events. [2025-03-17 11:20:20,483 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 11:20:20,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9400 conditions, 7940 events. 835/7940 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 80753 event pairs, 297 based on Foata normal form. 0/7373 useless extension candidates. Maximal degree in co-relation 9396. Up to 1244 conditions per place. [2025-03-17 11:20:20,515 INFO L140 encePairwiseOnDemand]: 656/696 looper letters, 53 selfloop transitions, 138 changer transitions 0/740 dead transitions. [2025-03-17 11:20:20,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 740 transitions, 1869 flow [2025-03-17 11:20:20,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:20:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:20:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3522 transitions. [2025-03-17 11:20:20,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8433908045977011 [2025-03-17 11:20:20,523 INFO L175 Difference]: Start difference. First operand has 594 places, 603 transitions, 1213 flow. Second operand 6 states and 3522 transitions. [2025-03-17 11:20:20,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 740 transitions, 1869 flow [2025-03-17 11:20:20,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 740 transitions, 1869 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:20,538 INFO L231 Difference]: Finished difference. Result has 604 places, 740 transitions, 2117 flow [2025-03-17 11:20:20,539 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=696, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2117, PETRI_PLACES=604, PETRI_TRANSITIONS=740} [2025-03-17 11:20:20,539 INFO L279 CegarLoopForPetriNet]: 614 programPoint places, -10 predicate places. [2025-03-17 11:20:20,540 INFO L471 AbstractCegarLoop]: Abstraction has has 604 places, 740 transitions, 2117 flow [2025-03-17 11:20:20,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 556.5) internal successors, (3339), 6 states have internal predecessors, (3339), 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 11:20:20,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:20,542 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:20,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:20:20,542 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:20,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:20,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1552512635, now seen corresponding path program 1 times [2025-03-17 11:20:20,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:20,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232348397] [2025-03-17 11:20:20,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:20,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:20,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 11:20:20,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 11:20:20,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:20,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:20,584 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 11:20:20,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:20,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232348397] [2025-03-17 11:20:20,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232348397] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:20,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:20,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:20,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302090995] [2025-03-17 11:20:20,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:20,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:20,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:20,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:20,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:20,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 696 [2025-03-17 11:20:20,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 740 transitions, 2117 flow. Second operand has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 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 11:20:20,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:20,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 696 [2025-03-17 11:20:20,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:21,317 INFO L124 PetriNetUnfolderBase]: 537/6759 cut-off events. [2025-03-17 11:20:21,317 INFO L125 PetriNetUnfolderBase]: For 627/828 co-relation queries the response was YES. [2025-03-17 11:20:21,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8527 conditions, 6759 events. 537/6759 cut-off events. For 627/828 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 60328 event pairs, 53 based on Foata normal form. 31/6379 useless extension candidates. Maximal degree in co-relation 8518. Up to 634 conditions per place. [2025-03-17 11:20:21,352 INFO L140 encePairwiseOnDemand]: 687/696 looper letters, 88 selfloop transitions, 6 changer transitions 0/757 dead transitions. [2025-03-17 11:20:21,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 757 transitions, 2365 flow [2025-03-17 11:20:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:21,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1797 transitions. [2025-03-17 11:20:21,357 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.860632183908046 [2025-03-17 11:20:21,357 INFO L175 Difference]: Start difference. First operand has 604 places, 740 transitions, 2117 flow. Second operand 3 states and 1797 transitions. [2025-03-17 11:20:21,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 757 transitions, 2365 flow [2025-03-17 11:20:21,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 757 transitions, 2365 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:21,370 INFO L231 Difference]: Finished difference. Result has 607 places, 744 transitions, 2163 flow [2025-03-17 11:20:21,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=696, PETRI_DIFFERENCE_MINUEND_FLOW=2115, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=739, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2163, PETRI_PLACES=607, PETRI_TRANSITIONS=744} [2025-03-17 11:20:21,372 INFO L279 CegarLoopForPetriNet]: 614 programPoint places, -7 predicate places. [2025-03-17 11:20:21,372 INFO L471 AbstractCegarLoop]: Abstraction has has 607 places, 744 transitions, 2163 flow [2025-03-17 11:20:21,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 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 11:20:21,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:21,373 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:21,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:20:21,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:21,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:21,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1611038291, now seen corresponding path program 1 times [2025-03-17 11:20:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:21,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057710467] [2025-03-17 11:20:21,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:21,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 11:20:21,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 11:20:21,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:21,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:21,410 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 11:20:21,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:21,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057710467] [2025-03-17 11:20:21,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057710467] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:21,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:21,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:21,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917336096] [2025-03-17 11:20:21,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:21,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:21,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:21,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:21,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:21,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 587 out of 696 [2025-03-17 11:20:21,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 744 transitions, 2163 flow. Second operand has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 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 11:20:21,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:21,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 587 of 696 [2025-03-17 11:20:21,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:22,260 INFO L124 PetriNetUnfolderBase]: 604/8994 cut-off events. [2025-03-17 11:20:22,260 INFO L125 PetriNetUnfolderBase]: For 728/869 co-relation queries the response was YES. [2025-03-17 11:20:22,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11119 conditions, 8994 events. 604/8994 cut-off events. For 728/869 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 85293 event pairs, 50 based on Foata normal form. 27/8532 useless extension candidates. Maximal degree in co-relation 11108. Up to 772 conditions per place. [2025-03-17 11:20:22,329 INFO L140 encePairwiseOnDemand]: 690/696 looper letters, 85 selfloop transitions, 4 changer transitions 0/759 dead transitions. [2025-03-17 11:20:22,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 759 transitions, 2397 flow [2025-03-17 11:20:22,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1800 transitions. [2025-03-17 11:20:22,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8620689655172413 [2025-03-17 11:20:22,333 INFO L175 Difference]: Start difference. First operand has 607 places, 744 transitions, 2163 flow. Second operand 3 states and 1800 transitions. [2025-03-17 11:20:22,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 759 transitions, 2397 flow [2025-03-17 11:20:22,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 759 transitions, 2385 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:20:22,345 INFO L231 Difference]: Finished difference. Result has 608 places, 746 transitions, 2179 flow [2025-03-17 11:20:22,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=696, PETRI_DIFFERENCE_MINUEND_FLOW=2149, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2179, PETRI_PLACES=608, PETRI_TRANSITIONS=746} [2025-03-17 11:20:22,346 INFO L279 CegarLoopForPetriNet]: 614 programPoint places, -6 predicate places. [2025-03-17 11:20:22,347 INFO L471 AbstractCegarLoop]: Abstraction has has 608 places, 746 transitions, 2179 flow [2025-03-17 11:20:22,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 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 11:20:22,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:22,348 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:22,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:20:22,348 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:22,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:22,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1156713456, now seen corresponding path program 1 times [2025-03-17 11:20:22,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:22,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705868564] [2025-03-17 11:20:22,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:22,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:22,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 11:20:22,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 11:20:22,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:22,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:22,429 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 11:20:22,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:22,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705868564] [2025-03-17 11:20:22,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705868564] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:22,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:22,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:20:22,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540514733] [2025-03-17 11:20:22,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:22,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:22,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:22,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:22,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:22,459 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 696 [2025-03-17 11:20:22,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 608 places, 746 transitions, 2179 flow. Second operand has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 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 11:20:22,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:22,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 696 [2025-03-17 11:20:22,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:23,496 INFO L124 PetriNetUnfolderBase]: 604/9212 cut-off events. [2025-03-17 11:20:23,496 INFO L125 PetriNetUnfolderBase]: For 774/1077 co-relation queries the response was YES. [2025-03-17 11:20:23,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11434 conditions, 9212 events. 604/9212 cut-off events. For 774/1077 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 88943 event pairs, 59 based on Foata normal form. 31/8750 useless extension candidates. Maximal degree in co-relation 11422. Up to 798 conditions per place. [2025-03-17 11:20:23,528 INFO L140 encePairwiseOnDemand]: 693/696 looper letters, 85 selfloop transitions, 2 changer transitions 0/760 dead transitions. [2025-03-17 11:20:23,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 760 transitions, 2411 flow [2025-03-17 11:20:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1799 transitions. [2025-03-17 11:20:23,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8615900383141762 [2025-03-17 11:20:23,531 INFO L175 Difference]: Start difference. First operand has 608 places, 746 transitions, 2179 flow. Second operand 3 states and 1799 transitions. [2025-03-17 11:20:23,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 760 transitions, 2411 flow [2025-03-17 11:20:23,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 760 transitions, 2403 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:20:23,543 INFO L231 Difference]: Finished difference. Result has 609 places, 746 transitions, 2179 flow [2025-03-17 11:20:23,544 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=696, PETRI_DIFFERENCE_MINUEND_FLOW=2171, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=746, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=744, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2179, PETRI_PLACES=609, PETRI_TRANSITIONS=746} [2025-03-17 11:20:23,545 INFO L279 CegarLoopForPetriNet]: 614 programPoint places, -5 predicate places. [2025-03-17 11:20:23,545 INFO L471 AbstractCegarLoop]: Abstraction has has 609 places, 746 transitions, 2179 flow [2025-03-17 11:20:23,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 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 11:20:23,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:23,546 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:20:23,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 11:20:23,546 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:23,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1526876206, now seen corresponding path program 1 times [2025-03-17 11:20:23,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:23,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573419759] [2025-03-17 11:20:23,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:23,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:23,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 11:20:23,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 11:20:23,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:23,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:20:23,574 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 11:20:23,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 11:20:23,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 11:20:23,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:23,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:20:23,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 11:20:23,622 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 11:20:23,622 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2025-03-17 11:20:23,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2025-03-17 11:20:23,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2025-03-17 11:20:23,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2025-03-17 11:20:23,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2025-03-17 11:20:23,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:20:23,627 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 11:20:23,629 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 11:20:23,629 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 11:20:23,802 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 11:20:23,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1120 places, 1265 transitions, 2546 flow [2025-03-17 11:20:24,209 INFO L124 PetriNetUnfolderBase]: 187/1478 cut-off events. [2025-03-17 11:20:24,209 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 11:20:24,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 1478 events. 187/1478 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 6346 event pairs, 0 based on Foata normal form. 0/1220 useless extension candidates. Maximal degree in co-relation 1268. Up to 12 conditions per place. [2025-03-17 11:20:24,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 1120 places, 1265 transitions, 2546 flow [2025-03-17 11:20:24,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1120 places, 1265 transitions, 2546 flow [2025-03-17 11:20:24,260 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:20:24,260 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;@32e90c8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:20:24,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2025-03-17 11:20:24,264 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:20:24,264 INFO L124 PetriNetUnfolderBase]: 12/68 cut-off events. [2025-03-17 11:20:24,264 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:20:24,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:24,264 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:24,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2025-03-17 11:20:24,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash 566829113, now seen corresponding path program 1 times [2025-03-17 11:20:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978903933] [2025-03-17 11:20:24,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:24,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 11:20:24,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 11:20:24,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:24,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:24,289 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 11:20:24,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:24,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978903933] [2025-03-17 11:20:24,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978903933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:24,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:24,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:24,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38536754] [2025-03-17 11:20:24,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:24,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:20:24,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:24,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:20:24,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:20:24,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1081 out of 1265 [2025-03-17 11:20:24,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1120 places, 1265 transitions, 2546 flow. Second operand has 2 states, 2 states have (on average 1081.5) internal successors, (2163), 2 states have internal predecessors, (2163), 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 11:20:24,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:24,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1081 of 1265 [2025-03-17 11:20:24,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:26,179 INFO L124 PetriNetUnfolderBase]: 391/9835 cut-off events. [2025-03-17 11:20:26,179 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2025-03-17 11:20:26,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10361 conditions, 9835 events. 391/9835 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 102949 event pairs, 208 based on Foata normal form. 3424/12583 useless extension candidates. Maximal degree in co-relation 1360. Up to 449 conditions per place. [2025-03-17 11:20:26,319 INFO L140 encePairwiseOnDemand]: 1111/1265 looper letters, 30 selfloop transitions, 0 changer transitions 0/1103 dead transitions. [2025-03-17 11:20:26,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1083 places, 1103 transitions, 2282 flow [2025-03-17 11:20:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:20:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 11:20:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2346 transitions. [2025-03-17 11:20:26,325 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9272727272727272 [2025-03-17 11:20:26,325 INFO L175 Difference]: Start difference. First operand has 1120 places, 1265 transitions, 2546 flow. Second operand 2 states and 2346 transitions. [2025-03-17 11:20:26,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1083 places, 1103 transitions, 2282 flow [2025-03-17 11:20:26,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1083 places, 1103 transitions, 2282 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:26,339 INFO L231 Difference]: Finished difference. Result has 1083 places, 1103 transitions, 2222 flow [2025-03-17 11:20:26,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1265, PETRI_DIFFERENCE_MINUEND_FLOW=2222, PETRI_DIFFERENCE_MINUEND_PLACES=1082, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2222, PETRI_PLACES=1083, PETRI_TRANSITIONS=1103} [2025-03-17 11:20:26,341 INFO L279 CegarLoopForPetriNet]: 1120 programPoint places, -37 predicate places. [2025-03-17 11:20:26,341 INFO L471 AbstractCegarLoop]: Abstraction has has 1083 places, 1103 transitions, 2222 flow [2025-03-17 11:20:26,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1081.5) internal successors, (2163), 2 states have internal predecessors, (2163), 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 11:20:26,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:26,342 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:26,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 11:20:26,343 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2025-03-17 11:20:26,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:26,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1620507512, now seen corresponding path program 1 times [2025-03-17 11:20:26,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:26,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790757699] [2025-03-17 11:20:26,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:26,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:26,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 11:20:26,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 11:20:26,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:26,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:26,877 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 11:20:26,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:26,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790757699] [2025-03-17 11:20:26,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790757699] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:26,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:26,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:20:26,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495503121] [2025-03-17 11:20:26,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:26,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:20:26,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:26,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:20:26,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:20:27,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1265 [2025-03-17 11:20:27,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1083 places, 1103 transitions, 2222 flow. Second operand has 6 states, 6 states have (on average 1023.5) internal successors, (6141), 6 states have internal predecessors, (6141), 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 11:20:27,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:27,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1265 [2025-03-17 11:20:27,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand