./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/libvsync/hclhlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:59:03,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:59:03,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:59:03,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:59:03,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:59:03,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:59:03,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:59:03,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:59:03,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:59:03,189 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:59:03,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:59:03,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:59:03,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:59:03,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:59:03,189 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:59:03,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:59:03,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:59:03,191 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:59:03,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:03,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:03,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:59:03,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:59:03,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:59:03,193 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2024-11-28 04:59:03,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:59:03,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:59:03,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:59:03,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:59:03,477 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:59:03,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/libvsync/hclhlock.i [2024-11-28 04:59:06,448 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/data/c44511d57/cae53a3fc3be4e00a1c50fb87a8aa1b4/FLAGa205e58fd [2024-11-28 04:59:07,025 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:59:07,026 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-28 04:59:07,070 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/data/c44511d57/cae53a3fc3be4e00a1c50fb87a8aa1b4/FLAGa205e58fd [2024-11-28 04:59:07,087 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/data/c44511d57/cae53a3fc3be4e00a1c50fb87a8aa1b4 [2024-11-28 04:59:07,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:59:07,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:59:07,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:07,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:59:07,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:59:07,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:07" (1/1) ... [2024-11-28 04:59:07,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35927ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:07, skipping insertion in model container [2024-11-28 04:59:07,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:07" (1/1) ... [2024-11-28 04:59:07,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:59:09,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:09,906 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:59:10,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-28 04:59:10,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-28 04:59:10,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-28 04:59:10,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-28 04:59:10,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-28 04:59:10,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-28 04:59:10,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-28 04:59:10,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-28 04:59:10,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-28 04:59:10,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-28 04:59:10,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-28 04:59:10,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-28 04:59:10,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-28 04:59:10,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-28 04:59:10,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-28 04:59:10,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-28 04:59:10,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-28 04:59:10,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-28 04:59:10,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-28 04:59:10,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-28 04:59:10,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-28 04:59:10,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-28 04:59:10,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-28 04:59:10,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-28 04:59:10,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-28 04:59:10,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-28 04:59:10,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-28 04:59:10,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-28 04:59:10,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-28 04:59:10,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-28 04:59:10,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-28 04:59:10,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-28 04:59:10,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-28 04:59:10,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-28 04:59:10,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-28 04:59:10,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-28 04:59:10,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-28 04:59:10,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-28 04:59:10,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-28 04:59:10,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-28 04:59:10,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-28 04:59:10,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-28 04:59:10,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-28 04:59:10,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-28 04:59:10,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-28 04:59:10,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-28 04:59:10,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-28 04:59:10,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-28 04:59:10,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-28 04:59:10,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-28 04:59:10,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-28 04:59:10,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-28 04:59:10,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-28 04:59:10,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-28 04:59:10,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-28 04:59:10,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-28 04:59:10,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-28 04:59:10,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-28 04:59:10,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-28 04:59:10,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-28 04:59:10,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-28 04:59:10,071 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-28 04:59:10,071 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-28 04:59:10,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-28 04:59:10,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-28 04:59:10,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-28 04:59:10,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-28 04:59:10,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-28 04:59:10,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-28 04:59:10,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-28 04:59:10,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-28 04:59:10,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-28 04:59:10,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-28 04:59:10,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-28 04:59:10,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-28 04:59:10,082 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-28 04:59:10,082 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-28 04:59:10,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-28 04:59:10,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-28 04:59:10,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-28 04:59:10,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-28 04:59:10,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-28 04:59:10,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-28 04:59:10,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-28 04:59:10,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-28 04:59:10,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-28 04:59:10,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-28 04:59:10,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-28 04:59:10,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-28 04:59:10,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-28 04:59:10,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-28 04:59:10,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-28 04:59:10,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-28 04:59:10,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-28 04:59:10,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-28 04:59:10,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-28 04:59:10,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-28 04:59:10,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-28 04:59:10,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-28 04:59:10,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-28 04:59:10,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:10,529 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:59:10,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10 WrapperNode [2024-11-28 04:59:10,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:10,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:10,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:59:10,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:59:10,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,682 INFO L138 Inliner]: procedures = 921, calls = 972, calls flagged for inlining = 848, calls inlined = 84, statements flattened = 872 [2024-11-28 04:59:10,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:10,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:59:10,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:59:10,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:59:10,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,763 INFO L175 MemorySlicer]: Split 50 memory accesses to 4 slices as follows [2, 28, 18, 2]. 56 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 7, 6, 0]. The 15 writes are split as follows [0, 9, 5, 1]. [2024-11-28 04:59:10,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,786 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:59:10,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:59:10,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:59:10,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:59:10,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (1/1) ... [2024-11-28 04:59:10,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:10,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:10,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:59:10,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:59:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:59:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:59:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:59:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-28 04:59:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:59:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:59:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:59:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:59:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:59:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:59:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:59:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:59:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:59:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:59:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:59:10,911 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:59:11,188 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:59:11,190 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:59:12,542 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:59:12,543 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:59:13,410 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:59:13,410 INFO L312 CfgBuilder]: Removed 61 assume(true) statements. [2024-11-28 04:59:13,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:13 BoogieIcfgContainer [2024-11-28 04:59:13,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:59:13,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:59:13,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:59:13,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:59:13,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:59:07" (1/3) ... [2024-11-28 04:59:13,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdc6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:13, skipping insertion in model container [2024-11-28 04:59:13,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:10" (2/3) ... [2024-11-28 04:59:13,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdc6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:13, skipping insertion in model container [2024-11-28 04:59:13,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:13" (3/3) ... [2024-11-28 04:59:13,426 INFO L128 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2024-11-28 04:59:13,442 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:59:13,446 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hclhlock.i that has 2 procedures, 219 locations, 1 initial locations, 60 loop locations, and 6 error locations. [2024-11-28 04:59:13,447 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:59:13,672 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:59:13,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 342 transitions, 691 flow [2024-11-28 04:59:13,860 INFO L124 PetriNetUnfolderBase]: 132/366 cut-off events. [2024-11-28 04:59:13,864 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:59:13,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 366 events. 132/366 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1069 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 285. Up to 6 conditions per place. [2024-11-28 04:59:13,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 342 transitions, 691 flow [2024-11-28 04:59:13,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 340 transitions, 684 flow [2024-11-28 04:59:13,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:59:13,913 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;@f864bde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:59:13,915 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 04:59:13,935 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:59:13,935 INFO L124 PetriNetUnfolderBase]: 24/73 cut-off events. [2024-11-28 04:59:13,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:59:13,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:13,936 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:13,937 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:59:13,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:13,942 INFO L85 PathProgramCache]: Analyzing trace with hash -15877094, now seen corresponding path program 1 times [2024-11-28 04:59:13,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:13,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706551139] [2024-11-28 04:59:13,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:13,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:14,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:14,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706551139] [2024-11-28 04:59:14,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706551139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:14,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:14,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:59:14,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396481598] [2024-11-28 04:59:14,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:14,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:59:14,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:14,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:59:14,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:59:14,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 342 [2024-11-28 04:59:14,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 340 transitions, 684 flow. Second operand has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:14,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:14,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 342 [2024-11-28 04:59:14,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:15,211 INFO L124 PetriNetUnfolderBase]: 1272/3146 cut-off events. [2024-11-28 04:59:15,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:59:15,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5488 conditions, 3146 events. 1272/3146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 20466 event pairs, 970 based on Foata normal form. 1052/3819 useless extension candidates. Maximal degree in co-relation 5387. Up to 2338 conditions per place. [2024-11-28 04:59:15,236 INFO L140 encePairwiseOnDemand]: 252/342 looper letters, 158 selfloop transitions, 0 changer transitions 0/250 dead transitions. [2024-11-28 04:59:15,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 250 transitions, 820 flow [2024-11-28 04:59:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:59:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 04:59:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 432 transitions. [2024-11-28 04:59:15,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2024-11-28 04:59:15,256 INFO L175 Difference]: Start difference. First operand has 221 places, 340 transitions, 684 flow. Second operand 2 states and 432 transitions. [2024-11-28 04:59:15,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 250 transitions, 820 flow [2024-11-28 04:59:15,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 250 transitions, 820 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:59:15,269 INFO L231 Difference]: Finished difference. Result has 222 places, 250 transitions, 504 flow [2024-11-28 04:59:15,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=504, PETRI_PLACES=222, PETRI_TRANSITIONS=250} [2024-11-28 04:59:15,276 INFO L279 CegarLoopForPetriNet]: 221 programPoint places, 1 predicate places. [2024-11-28 04:59:15,277 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 250 transitions, 504 flow [2024-11-28 04:59:15,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:15,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:15,277 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:15,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:59:15,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:59:15,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1247977914, now seen corresponding path program 1 times [2024-11-28 04:59:15,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:15,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245669026] [2024-11-28 04:59:15,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:15,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:15,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245669026] [2024-11-28 04:59:15,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245669026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:15,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:15,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:15,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878627085] [2024-11-28 04:59:15,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:15,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:15,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:15,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:15,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:15,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 342 [2024-11-28 04:59:15,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 250 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:15,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:15,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 342 [2024-11-28 04:59:15,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:16,415 INFO L124 PetriNetUnfolderBase]: 1272/3149 cut-off events. [2024-11-28 04:59:16,416 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:59:16,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5495 conditions, 3149 events. 1272/3149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 20454 event pairs, 970 based on Foata normal form. 0/2770 useless extension candidates. Maximal degree in co-relation 5491. Up to 2334 conditions per place. [2024-11-28 04:59:16,432 INFO L140 encePairwiseOnDemand]: 339/342 looper letters, 159 selfloop transitions, 2 changer transitions 0/253 dead transitions. [2024-11-28 04:59:16,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 253 transitions, 832 flow [2024-11-28 04:59:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:59:16,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2024-11-28 04:59:16,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4269005847953216 [2024-11-28 04:59:16,439 INFO L175 Difference]: Start difference. First operand has 222 places, 250 transitions, 504 flow. Second operand 3 states and 438 transitions. [2024-11-28 04:59:16,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 253 transitions, 832 flow [2024-11-28 04:59:16,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 253 transitions, 832 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:59:16,447 INFO L231 Difference]: Finished difference. Result has 225 places, 251 transitions, 516 flow [2024-11-28 04:59:16,448 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=225, PETRI_TRANSITIONS=251} [2024-11-28 04:59:16,449 INFO L279 CegarLoopForPetriNet]: 221 programPoint places, 4 predicate places. [2024-11-28 04:59:16,449 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 251 transitions, 516 flow [2024-11-28 04:59:16,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:16,449 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:16,450 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:16,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:59:16,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:59:16,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:16,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2144991441, now seen corresponding path program 1 times [2024-11-28 04:59:16,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:16,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587752359] [2024-11-28 04:59:16,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:16,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:16,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:16,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:16,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587752359] [2024-11-28 04:59:16,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587752359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:16,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360644448] [2024-11-28 04:59:16,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:16,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:16,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:16,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:16,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:59:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:16,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:59:16,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:17,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:59:17,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360644448] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:17,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:59:17,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-28 04:59:17,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870339266] [2024-11-28 04:59:17,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:17,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:17,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:17,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:17,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:59:17,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 342 [2024-11-28 04:59:17,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 251 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:17,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:17,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 342 [2024-11-28 04:59:17,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:17,861 INFO L124 PetriNetUnfolderBase]: 1272/3150 cut-off events. [2024-11-28 04:59:17,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:59:17,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5504 conditions, 3150 events. 1272/3150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 20431 event pairs, 970 based on Foata normal form. 0/2772 useless extension candidates. Maximal degree in co-relation 5498. Up to 2326 conditions per place. [2024-11-28 04:59:17,878 INFO L140 encePairwiseOnDemand]: 338/342 looper letters, 157 selfloop transitions, 3 changer transitions 0/252 dead transitions. [2024-11-28 04:59:17,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 252 transitions, 838 flow [2024-11-28 04:59:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:59:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2024-11-28 04:59:17,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4249512670565302 [2024-11-28 04:59:17,881 INFO L175 Difference]: Start difference. First operand has 225 places, 251 transitions, 516 flow. Second operand 3 states and 436 transitions. [2024-11-28 04:59:17,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 252 transitions, 838 flow [2024-11-28 04:59:17,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 252 transitions, 836 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:59:17,887 INFO L231 Difference]: Finished difference. Result has 228 places, 252 transitions, 532 flow [2024-11-28 04:59:17,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=228, PETRI_TRANSITIONS=252} [2024-11-28 04:59:17,890 INFO L279 CegarLoopForPetriNet]: 221 programPoint places, 7 predicate places. [2024-11-28 04:59:17,890 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 252 transitions, 532 flow [2024-11-28 04:59:17,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:17,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:17,890 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:17,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:18,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:18,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:59:18,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:18,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1110817108, now seen corresponding path program 1 times [2024-11-28 04:59:18,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:18,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041370068] [2024-11-28 04:59:18,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:18,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:59:18,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041370068] [2024-11-28 04:59:18,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041370068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117801129] [2024-11-28 04:59:18,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:18,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:18,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:18,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:18,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:59:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:18,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:59:18,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:59:18,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:59:18,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117801129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:59:18,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:59:18,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 10 [2024-11-28 04:59:18,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697481150] [2024-11-28 04:59:18,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:18,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:59:18,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:18,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:59:18,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:59:18,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 342 [2024-11-28 04:59:18,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 252 transitions, 532 flow. Second operand has 10 states, 10 states have (on average 98.4) internal successors, (984), 10 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:18,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:18,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 342 [2024-11-28 04:59:18,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:20,355 INFO L124 PetriNetUnfolderBase]: 1278/3199 cut-off events. [2024-11-28 04:59:20,355 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 04:59:20,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5603 conditions, 3199 events. 1278/3199 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 20423 event pairs, 970 based on Foata normal form. 3/2825 useless extension candidates. Maximal degree in co-relation 5596. Up to 2319 conditions per place. [2024-11-28 04:59:20,369 INFO L140 encePairwiseOnDemand]: 336/342 looper letters, 187 selfloop transitions, 8 changer transitions 0/287 dead transitions. [2024-11-28 04:59:20,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 287 transitions, 1010 flow [2024-11-28 04:59:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:59:20,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:59:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 842 transitions. [2024-11-28 04:59:20,373 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3517126148705096 [2024-11-28 04:59:20,373 INFO L175 Difference]: Start difference. First operand has 228 places, 252 transitions, 532 flow. Second operand 7 states and 842 transitions. [2024-11-28 04:59:20,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 287 transitions, 1010 flow [2024-11-28 04:59:20,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 287 transitions, 996 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:59:20,378 INFO L231 Difference]: Finished difference. Result has 236 places, 256 transitions, 578 flow [2024-11-28 04:59:20,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=578, PETRI_PLACES=236, PETRI_TRANSITIONS=256} [2024-11-28 04:59:20,380 INFO L279 CegarLoopForPetriNet]: 221 programPoint places, 15 predicate places. [2024-11-28 04:59:20,380 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 256 transitions, 578 flow [2024-11-28 04:59:20,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.4) internal successors, (984), 10 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:20,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:20,381 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:20,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:20,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:20,582 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:59:20,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1818716169, now seen corresponding path program 2 times [2024-11-28 04:59:20,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:20,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565205793] [2024-11-28 04:59:20,583 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:59:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:20,730 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:59:20,731 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:59:21,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:21,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565205793] [2024-11-28 04:59:21,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565205793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:21,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955990773] [2024-11-28 04:59:21,561 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:59:21,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:21,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:21,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:21,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:59:22,037 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:59:22,037 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:22,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:59:22,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:59:22,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:22,405 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:59:22,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955990773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:59:22,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:59:22,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 16 [2024-11-28 04:59:22,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253891048] [2024-11-28 04:59:22,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:22,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:59:22,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:22,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:59:22,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:59:26,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:26,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 342 [2024-11-28 04:59:26,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 256 transitions, 578 flow. Second operand has 16 states, 16 states have (on average 94.625) internal successors, (1514), 16 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:26,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:26,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 342 [2024-11-28 04:59:26,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:29,699 INFO L124 PetriNetUnfolderBase]: 1280/3235 cut-off events. [2024-11-28 04:59:29,700 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 04:59:29,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5697 conditions, 3235 events. 1280/3235 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 20554 event pairs, 970 based on Foata normal form. 2/2852 useless extension candidates. Maximal degree in co-relation 5687. Up to 2329 conditions per place. [2024-11-28 04:59:29,717 INFO L140 encePairwiseOnDemand]: 331/342 looper letters, 198 selfloop transitions, 27 changer transitions 0/315 dead transitions. [2024-11-28 04:59:29,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 315 transitions, 1168 flow [2024-11-28 04:59:29,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:59:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:59:29,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1846 transitions. [2024-11-28 04:59:29,725 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2998700454840806 [2024-11-28 04:59:29,725 INFO L175 Difference]: Start difference. First operand has 236 places, 256 transitions, 578 flow. Second operand 18 states and 1846 transitions. [2024-11-28 04:59:29,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 315 transitions, 1168 flow [2024-11-28 04:59:29,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 315 transitions, 1164 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-28 04:59:29,733 INFO L231 Difference]: Finished difference. Result has 262 places, 280 transitions, 763 flow [2024-11-28 04:59:29,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=763, PETRI_PLACES=262, PETRI_TRANSITIONS=280} [2024-11-28 04:59:29,734 INFO L279 CegarLoopForPetriNet]: 221 programPoint places, 41 predicate places. [2024-11-28 04:59:29,734 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 280 transitions, 763 flow [2024-11-28 04:59:29,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 94.625) internal successors, (1514), 16 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:29,735 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:29,735 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:29,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:29,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d8720a4-c9e5-4daa-ae93-1015cce548ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:29,939 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:59:29,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash -342588537, now seen corresponding path program 1 times [2024-11-28 04:59:29,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:29,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107280858] [2024-11-28 04:59:29,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:30,366 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 04:59:30,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:30,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107280858] [2024-11-28 04:59:30,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107280858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:30,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:30,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271967097] [2024-11-28 04:59:30,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:30,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:30,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:30,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:30,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:30,376 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 342 [2024-11-28 04:59:30,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 280 transitions, 763 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:30,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:30,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 342 [2024-11-28 04:59:30,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:31,324 INFO L124 PetriNetUnfolderBase]: 1272/3207 cut-off events. [2024-11-28 04:59:31,325 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-28 04:59:31,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5712 conditions, 3207 events. 1272/3207 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 20496 event pairs, 970 based on Foata normal form. 4/2834 useless extension candidates. Maximal degree in co-relation 5691. Up to 2375 conditions per place. [2024-11-28 04:59:31,348 INFO L140 encePairwiseOnDemand]: 339/342 looper letters, 175 selfloop transitions, 6 changer transitions 0/270 dead transitions. [2024-11-28 04:59:31,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 270 transitions, 1081 flow [2024-11-28 04:59:31,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:59:31,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2024-11-28 04:59:31,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4171539961013645 [2024-11-28 04:59:31,351 INFO L175 Difference]: Start difference. First operand has 262 places, 280 transitions, 763 flow. Second operand 3 states and 428 transitions. [2024-11-28 04:59:31,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 270 transitions, 1081 flow [2024-11-28 04:59:31,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 270 transitions, 1062 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 04:59:31,360 INFO L231 Difference]: Finished difference. Result has 256 places, 270 transitions, 712 flow [2024-11-28 04:59:31,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=256, PETRI_TRANSITIONS=270} [2024-11-28 04:59:31,361 INFO L279 CegarLoopForPetriNet]: 221 programPoint places, 35 predicate places. [2024-11-28 04:59:31,362 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 270 transitions, 712 flow [2024-11-28 04:59:31,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:31,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:31,363 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:31,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:59:31,363 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-28 04:59:31,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1616956276, now seen corresponding path program 1 times [2024-11-28 04:59:31,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:31,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844438345] [2024-11-28 04:59:31,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:59:31,652 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:59:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:59:31,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:59:31,874 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:59:31,875 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-28 04:59:31,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-28 04:59:31,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-28 04:59:31,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-28 04:59:31,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-28 04:59:31,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:59:31,884 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-28 04:59:31,886 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:59:31,887 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:59:32,118 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 04:59:32,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 391 places, 604 transitions, 1224 flow [2024-11-28 04:59:32,257 INFO L124 PetriNetUnfolderBase]: 241/668 cut-off events. [2024-11-28 04:59:32,257 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:59:32,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 668 events. 241/668 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2691 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 559. Up to 12 conditions per place. [2024-11-28 04:59:32,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 604 transitions, 1224 flow [2024-11-28 04:59:32,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 391 places, 604 transitions, 1224 flow [2024-11-28 04:59:32,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:59:32,301 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;@f864bde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:59:32,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-28 04:59:32,313 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:59:32,313 INFO L124 PetriNetUnfolderBase]: 41/123 cut-off events. [2024-11-28 04:59:32,313 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:59:32,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:32,313 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:32,314 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-28 04:59:32,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1976549117, now seen corresponding path program 1 times [2024-11-28 04:59:32,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:32,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265876423] [2024-11-28 04:59:32,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:32,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:32,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:32,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265876423] [2024-11-28 04:59:32,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265876423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:32,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:32,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:59:32,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756364118] [2024-11-28 04:59:32,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:32,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:59:32,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:32,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:59:32,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:59:32,364 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 604 [2024-11-28 04:59:32,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 604 transitions, 1224 flow. Second operand has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:32,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:32,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 604 [2024-11-28 04:59:32,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand