./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/libvsync/ttaslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/libvsync/ttaslock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU --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 1232142cbd2d3669d71853399351b59e265805f095536d7cdae31e54b7810261 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:05,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:05,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:05,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:05,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:05,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:05,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:05,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:05,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:05,780 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:05,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:05,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:05,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:05,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:05,783 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:05,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:05,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:05,784 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:05,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:05,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:05,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:05,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:05,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:05,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:05,792 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:05,793 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:05,793 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:05,793 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:05,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:05,794 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:05,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:05,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:05,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:05,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:05,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:05,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:05,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:05,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:05,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:05,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:05,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:05,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:05,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:05,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:05,799 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1232142cbd2d3669d71853399351b59e265805f095536d7cdae31e54b7810261 [2024-10-31 21:59:06,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:06,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:06,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:06,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:06,136 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:06,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/libvsync/ttaslock.i Unable to find full path for "g++" [2024-10-31 21:59:08,281 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:08,793 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:08,793 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/sv-benchmarks/c/libvsync/ttaslock.i [2024-10-31 21:59:08,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/data/aa1bb192c/97aea94e8ab4408fac580d79a3d2935a/FLAGa08d427b8 [2024-10-31 21:59:09,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/data/aa1bb192c/97aea94e8ab4408fac580d79a3d2935a [2024-10-31 21:59:09,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:09,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:09,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:09,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:09,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:09,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:09" (1/1) ... [2024-10-31 21:59:09,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526642bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:09, skipping insertion in model container [2024-10-31 21:59:09,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:09" (1/1) ... [2024-10-31 21:59:09,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:12,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:12,624 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:12,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-10-31 21:59:12,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-10-31 21:59:12,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-10-31 21:59:12,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-10-31 21:59:12,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-10-31 21:59:12,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-10-31 21:59:12,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-10-31 21:59:12,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-10-31 21:59:12,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-10-31 21:59:12,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-10-31 21:59:12,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-10-31 21:59:12,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-10-31 21:59:12,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-10-31 21:59:12,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-10-31 21:59:12,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-10-31 21:59:12,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-10-31 21:59:12,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-10-31 21:59:12,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-10-31 21:59:12,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-10-31 21:59:12,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-10-31 21:59:12,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-10-31 21:59:12,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-10-31 21:59:12,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-10-31 21:59:12,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-10-31 21:59:12,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-10-31 21:59:12,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-10-31 21:59:12,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-10-31 21:59:12,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-10-31 21:59:12,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-10-31 21:59:12,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-10-31 21:59:12,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-10-31 21:59:12,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-10-31 21:59:12,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-10-31 21:59:12,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-10-31 21:59:12,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-10-31 21:59:12,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-10-31 21:59:12,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-10-31 21:59:12,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-10-31 21:59:12,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-10-31 21:59:12,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-10-31 21:59:12,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-10-31 21:59:12,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-10-31 21:59:12,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-10-31 21:59:12,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-10-31 21:59:12,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-10-31 21:59:12,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-10-31 21:59:12,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-10-31 21:59:12,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-10-31 21:59:12,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-10-31 21:59:12,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-10-31 21:59:12,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-10-31 21:59:12,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-10-31 21:59:12,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-10-31 21:59:12,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-10-31 21:59:12,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-10-31 21:59:12,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-10-31 21:59:12,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-10-31 21:59:12,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-10-31 21:59:12,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-10-31 21:59:12,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-10-31 21:59:12,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-10-31 21:59:12,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-10-31 21:59:12,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-10-31 21:59:12,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-10-31 21:59:12,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-10-31 21:59:12,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-10-31 21:59:12,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-10-31 21:59:12,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-10-31 21:59:12,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-10-31 21:59:12,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-10-31 21:59:12,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-10-31 21:59:12,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-10-31 21:59:12,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-10-31 21:59:12,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-10-31 21:59:12,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-10-31 21:59:12,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-10-31 21:59:12,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-10-31 21:59:12,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-10-31 21:59:12,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-10-31 21:59:12,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-10-31 21:59:12,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-10-31 21:59:12,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-10-31 21:59:12,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-10-31 21:59:12,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-10-31 21:59:12,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-10-31 21:59:12,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-10-31 21:59:12,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-10-31 21:59:12,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-10-31 21:59:12,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-10-31 21:59:12,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-10-31 21:59:12,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-10-31 21:59:12,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-10-31 21:59:12,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-10-31 21:59:12,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-10-31 21:59:12,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-10-31 21:59:12,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-10-31 21:59:12,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-10-31 21:59:12,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-10-31 21:59:12,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-10-31 21:59:12,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-10-31 21:59:12,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:13,505 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:13,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13 WrapperNode [2024-10-31 21:59:13,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:13,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:13,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:13,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:13,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,682 INFO L138 Inliner]: procedures = 917, calls = 913, calls flagged for inlining = 815, calls inlined = 29, statements flattened = 318 [2024-10-31 21:59:13,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:13,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:13,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:13,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:13,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,717 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 3 writes are split as follows [0, 2, 1]. [2024-10-31 21:59:13,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:13,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:13,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:13,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:13,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (1/1) ... [2024-10-31 21:59:13,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:13,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:13,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:13,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8100d7-ae4d-4ca3-bd63-36cbfcb2901f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:59:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:59:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 21:59:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:13,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-10-31 21:59:13,820 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-10-31 21:59:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:59:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:59:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:59:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 21:59:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:59:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:59:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 21:59:13,823 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:59:14,029 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:14,031 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:14,479 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:14,479 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:14,791 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:14,794 INFO L316 CfgBuilder]: Removed 67 assume(true) statements. [2024-10-31 21:59:14,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:14 BoogieIcfgContainer [2024-10-31 21:59:14,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:14,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:14,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:14,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:14,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:09" (1/3) ... [2024-10-31 21:59:14,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e951f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:14, skipping insertion in model container [2024-10-31 21:59:14,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:13" (2/3) ... [2024-10-31 21:59:14,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e951f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:14, skipping insertion in model container [2024-10-31 21:59:14,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:14" (3/3) ... [2024-10-31 21:59:14,810 INFO L112 eAbstractionObserver]: Analyzing ICFG ttaslock.i [2024-10-31 21:59:14,834 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:14,835 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 21:59:14,835 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:14,962 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:59:15,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 157 transitions, 321 flow [2024-10-31 21:59:15,098 INFO L124 PetriNetUnfolderBase]: 68/181 cut-off events. [2024-10-31 21:59:15,098 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:59:15,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 181 events. 68/181 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 507 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2024-10-31 21:59:15,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 157 transitions, 321 flow [2024-10-31 21:59:15,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 155 transitions, 314 flow [2024-10-31 21:59:15,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:15,139 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;@3f4495ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:15,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-31 21:59:15,154 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:15,156 INFO L124 PetriNetUnfolderBase]: 13/40 cut-off events. [2024-10-31 21:59:15,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:15,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:15,157 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:15,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:15,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1341701384, now seen corresponding path program 1 times [2024-10-31 21:59:15,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263673429] [2024-10-31 21:59:15,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:59:15,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:15,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263673429] [2024-10-31 21:59:15,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263673429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:15,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:15,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:15,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654070585] [2024-10-31 21:59:15,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:15,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:15,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:15,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:15,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 157 [2024-10-31 21:59:15,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 155 transitions, 314 flow. Second operand has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 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) [2024-10-31 21:59:15,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:15,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 157 [2024-10-31 21:59:15,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:15,895 INFO L124 PetriNetUnfolderBase]: 416/1229 cut-off events. [2024-10-31 21:59:15,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:15,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2058 conditions, 1229 events. 416/1229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7578 event pairs, 350 based on Foata normal form. 532/1574 useless extension candidates. Maximal degree in co-relation 2013. Up to 825 conditions per place. [2024-10-31 21:59:15,910 INFO L140 encePairwiseOnDemand]: 105/157 looper letters, 55 selfloop transitions, 0 changer transitions 0/103 dead transitions. [2024-10-31 21:59:15,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 103 transitions, 320 flow [2024-10-31 21:59:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:15,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 21:59:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 203 transitions. [2024-10-31 21:59:15,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464968152866242 [2024-10-31 21:59:15,930 INFO L175 Difference]: Start difference. First operand has 100 places, 155 transitions, 314 flow. Second operand 2 states and 203 transitions. [2024-10-31 21:59:15,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 103 transitions, 320 flow [2024-10-31 21:59:15,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 320 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:15,941 INFO L231 Difference]: Finished difference. Result has 101 places, 103 transitions, 210 flow [2024-10-31 21:59:15,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=210, PETRI_PLACES=101, PETRI_TRANSITIONS=103} [2024-10-31 21:59:15,951 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 1 predicate places. [2024-10-31 21:59:15,951 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 103 transitions, 210 flow [2024-10-31 21:59:15,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 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) [2024-10-31 21:59:15,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:15,952 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:15,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:15,953 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 21:59:15,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2069442298, now seen corresponding path program 1 times [2024-10-31 21:59:15,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881794414] [2024-10-31 21:59:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:16,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:16,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:16,170 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:59:16,172 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-10-31 21:59:16,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-10-31 21:59:16,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-10-31 21:59:16,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-10-31 21:59:16,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-10-31 21:59:16,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-10-31 21:59:16,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-10-31 21:59:16,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-10-31 21:59:16,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-10-31 21:59:16,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-10-31 21:59:16,183 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-10-31 21:59:16,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-10-31 21:59:16,184 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-10-31 21:59:16,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:16,185 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-31 21:59:16,190 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 21:59:16,190 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 21:59:16,331 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:59:16,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 275 transitions, 566 flow [2024-10-31 21:59:16,421 INFO L124 PetriNetUnfolderBase]: 127/339 cut-off events. [2024-10-31 21:59:16,422 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 21:59:16,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 339 events. 127/339 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1363 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 271. Up to 12 conditions per place. [2024-10-31 21:59:16,429 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 275 transitions, 566 flow [2024-10-31 21:59:16,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 275 transitions, 566 flow [2024-10-31 21:59:16,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:16,443 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;@3f4495ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:16,443 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-10-31 21:59:16,455 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:16,455 INFO L124 PetriNetUnfolderBase]: 24/76 cut-off events. [2024-10-31 21:59:16,456 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 21:59:16,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:16,456 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:16,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 21:59:16,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:16,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1287620753, now seen corresponding path program 1 times [2024-10-31 21:59:16,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:16,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219191989] [2024-10-31 21:59:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:16,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 21:59:16,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:16,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219191989] [2024-10-31 21:59:16,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219191989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:16,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:16,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:16,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296936745] [2024-10-31 21:59:16,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:16,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:16,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:16,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:16,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:16,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 275 [2024-10-31 21:59:16,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 275 transitions, 566 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 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) [2024-10-31 21:59:16,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:16,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 275 [2024-10-31 21:59:16,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:25,136 INFO L124 PetriNetUnfolderBase]: 31994/61838 cut-off events. [2024-10-31 21:59:25,136 INFO L125 PetriNetUnfolderBase]: For 298/298 co-relation queries the response was YES. [2024-10-31 21:59:25,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108973 conditions, 61838 events. 31994/61838 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 607035 event pairs, 27090 based on Foata normal form. 30504/81939 useless extension candidates. Maximal degree in co-relation 98004. Up to 46948 conditions per place. [2024-10-31 21:59:25,520 INFO L140 encePairwiseOnDemand]: 185/275 looper letters, 100 selfloop transitions, 0 changer transitions 0/185 dead transitions. [2024-10-31 21:59:25,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 185 transitions, 586 flow [2024-10-31 21:59:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:25,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 21:59:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 360 transitions. [2024-10-31 21:59:25,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-10-31 21:59:25,524 INFO L175 Difference]: Start difference. First operand has 176 places, 275 transitions, 566 flow. Second operand 2 states and 360 transitions. [2024-10-31 21:59:25,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 185 transitions, 586 flow [2024-10-31 21:59:25,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 185 transitions, 586 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:25,530 INFO L231 Difference]: Finished difference. Result has 177 places, 185 transitions, 386 flow [2024-10-31 21:59:25,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=386, PETRI_PLACES=177, PETRI_TRANSITIONS=185} [2024-10-31 21:59:25,531 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 1 predicate places. [2024-10-31 21:59:25,531 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 185 transitions, 386 flow [2024-10-31 21:59:25,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 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) [2024-10-31 21:59:25,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:25,532 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:25,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:25,533 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-31 21:59:25,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:25,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1559193363, now seen corresponding path program 1 times [2024-10-31 21:59:25,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:25,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800550396] [2024-10-31 21:59:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:25,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:25,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:25,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:25,604 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:59:25,604 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-10-31 21:59:25,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-10-31 21:59:25,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-10-31 21:59:25,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-10-31 21:59:25,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-10-31 21:59:25,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-10-31 21:59:25,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-10-31 21:59:25,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-10-31 21:59:25,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-10-31 21:59:25,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-10-31 21:59:25,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-10-31 21:59:25,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-10-31 21:59:25,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-10-31 21:59:25,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-10-31 21:59:25,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-10-31 21:59:25,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-10-31 21:59:25,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-10-31 21:59:25,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-10-31 21:59:25,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-10-31 21:59:25,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:25,609 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-31 21:59:25,609 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 21:59:25,610 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 21:59:25,724 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 21:59:25,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 393 transitions, 813 flow [2024-10-31 21:59:25,835 INFO L124 PetriNetUnfolderBase]: 197/526 cut-off events. [2024-10-31 21:59:25,836 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 21:59:25,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 526 events. 197/526 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2379 event pairs, 1 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 417. Up to 24 conditions per place. [2024-10-31 21:59:25,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 393 transitions, 813 flow [2024-10-31 21:59:25,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 393 transitions, 813 flow [2024-10-31 21:59:25,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:25,868 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;@3f4495ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:25,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-31 21:59:25,883 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:25,883 INFO L124 PetriNetUnfolderBase]: 52/151 cut-off events. [2024-10-31 21:59:25,884 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-31 21:59:25,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:25,884 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:25,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-31 21:59:25,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:25,886 INFO L85 PathProgramCache]: Analyzing trace with hash 992818343, now seen corresponding path program 1 times [2024-10-31 21:59:25,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:25,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403807702] [2024-10-31 21:59:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:25,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-31 21:59:25,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:25,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403807702] [2024-10-31 21:59:25,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403807702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:25,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:25,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:25,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012979669] [2024-10-31 21:59:25,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:25,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:25,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:25,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:25,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 393 [2024-10-31 21:59:25,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 393 transitions, 813 flow. Second operand has 2 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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) [2024-10-31 21:59:25,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:25,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 393 [2024-10-31 21:59:25,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand