./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/libvsync/cnalock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/libvsync/cnalock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34e9f64e541272dd9ea9a959271dc176e797335c8277127c4c0a13bf1a3bf002 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:04:25,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:04:25,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 16:04:25,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:04:25,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:04:26,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:04:26,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:04:26,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:04:26,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:04:26,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:04:26,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:04:26,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:04:26,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:04:26,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:04:26,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:04:26,035 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:04:26,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:04:26,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:04:26,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:04:26,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:04:26,038 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:04:26,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:04:26,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:04:26,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:04:26,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:04:26,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:04:26,039 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_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 34e9f64e541272dd9ea9a959271dc176e797335c8277127c4c0a13bf1a3bf002 [2024-11-13 16:04:26,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:04:26,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:04:26,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:04:26,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:04:26,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:04:26,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/libvsync/cnalock.i Unable to find full path for "g++" [2024-11-13 16:04:28,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:04:29,492 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:04:29,492 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/sv-benchmarks/c/libvsync/cnalock.i [2024-11-13 16:04:29,550 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/data/7e28b0314/7e219071d2af4e698ba6fbc1ef0fc757/FLAG117bca97c [2024-11-13 16:04:29,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/data/7e28b0314/7e219071d2af4e698ba6fbc1ef0fc757 [2024-11-13 16:04:29,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:04:29,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:04:29,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:04:29,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:04:29,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:04:29,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:04:29" (1/1) ... [2024-11-13 16:04:29,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268e710a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:29, skipping insertion in model container [2024-11-13 16:04:29,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:04:29" (1/1) ... [2024-11-13 16:04:29,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:04:32,798 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:04:32,813 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:04:32,815 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:04:32,826 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:04:32,826 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:04:33,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:04:33,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:04:33,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-13 16:04:33,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-13 16:04:33,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-13 16:04:33,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-13 16:04:33,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-13 16:04:33,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-13 16:04:33,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-13 16:04:33,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-13 16:04:33,731 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-13 16:04:33,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-13 16:04:33,735 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-13 16:04:33,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-13 16:04:33,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-13 16:04:33,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-13 16:04:33,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-13 16:04:33,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-13 16:04:33,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-13 16:04:33,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-13 16:04:33,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-13 16:04:33,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-13 16:04:33,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-13 16:04:33,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-13 16:04:33,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-13 16:04:33,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-13 16:04:33,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-13 16:04:33,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-13 16:04:33,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-13 16:04:33,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-13 16:04:33,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-13 16:04:33,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-13 16:04:33,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-13 16:04:33,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-13 16:04:33,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-13 16:04:33,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-13 16:04:33,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-13 16:04:33,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-13 16:04:33,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-13 16:04:33,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-13 16:04:33,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-13 16:04:33,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-13 16:04:33,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-13 16:04:33,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-13 16:04:33,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-13 16:04:33,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-13 16:04:33,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-13 16:04:33,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-13 16:04:33,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-13 16:04:33,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-13 16:04:33,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-13 16:04:33,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-13 16:04:33,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-13 16:04:33,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-13 16:04:33,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-13 16:04:33,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-13 16:04:33,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-13 16:04:33,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-13 16:04:33,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-13 16:04:33,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-13 16:04:33,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-13 16:04:33,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-13 16:04:33,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-13 16:04:33,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-13 16:04:33,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-13 16:04:33,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-13 16:04:33,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-13 16:04:33,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-13 16:04:33,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-13 16:04:33,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-13 16:04:33,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-13 16:04:33,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-13 16:04:33,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-13 16:04:33,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-13 16:04:33,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-13 16:04:33,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-13 16:04:33,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-13 16:04:33,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-13 16:04:33,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-13 16:04:33,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-13 16:04:33,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-13 16:04:33,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-13 16:04:33,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-13 16:04:33,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-13 16:04:33,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-13 16:04:33,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-13 16:04:33,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-13 16:04:33,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-13 16:04:33,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-13 16:04:33,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-13 16:04:33,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-13 16:04:33,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-13 16:04:33,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-13 16:04:33,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-13 16:04:33,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-13 16:04:33,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-13 16:04:33,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-13 16:04:33,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-13 16:04:33,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-13 16:04:33,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-13 16:04:33,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-13 16:04:33,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-13 16:04:34,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:04:34,418 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:04:34,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34 WrapperNode [2024-11-13 16:04:34,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:04:34,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:04:34,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:04:34,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:04:34,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,632 INFO L138 Inliner]: procedures = 919, calls = 958, calls flagged for inlining = 842, calls inlined = 87, statements flattened = 730 [2024-11-13 16:04:34,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:04:34,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:04:34,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:04:34,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:04:34,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,762 INFO L175 MemorySlicer]: Split 56 memory accesses to 3 slices as follows [2, 2, 52]. 93 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 17]. The 19 writes are split as follows [0, 1, 18]. [2024-11-13 16:04:34,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:04:34,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:04:34,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:04:34,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:04:34,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (1/1) ... [2024-11-13 16:04:34,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:04:34,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:04:34,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:04:34,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:04:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:04:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:04:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:04:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:04:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 16:04:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 16:04:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 16:04:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:04:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:04:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-13 16:04:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-13 16:04:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:04:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 16:04:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 16:04:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 16:04:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:04:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:04:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:04:34,962 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 16:04:35,284 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:04:35,288 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:04:37,344 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:04:37,344 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:04:38,437 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:04:38,440 INFO L316 CfgBuilder]: Removed 70 assume(true) statements. [2024-11-13 16:04:38,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:04:38 BoogieIcfgContainer [2024-11-13 16:04:38,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:04:38,443 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:04:38,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:04:38,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:04:38,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:04:29" (1/3) ... [2024-11-13 16:04:38,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9ed705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:04:38, skipping insertion in model container [2024-11-13 16:04:38,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:34" (2/3) ... [2024-11-13 16:04:38,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9ed705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:04:38, skipping insertion in model container [2024-11-13 16:04:38,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:04:38" (3/3) ... [2024-11-13 16:04:38,459 INFO L112 eAbstractionObserver]: Analyzing ICFG cnalock.i [2024-11-13 16:04:38,483 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:04:38,486 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cnalock.i that has 2 procedures, 247 locations, 1 initial locations, 39 loop locations, and 77 error locations. [2024-11-13 16:04:38,488 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:04:38,818 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 16:04:38,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 326 transitions, 659 flow [2024-11-13 16:04:39,074 INFO L124 PetriNetUnfolderBase]: 92/374 cut-off events. [2024-11-13 16:04:39,078 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:04:39,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 374 events. 92/374 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1535 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 310. Up to 6 conditions per place. [2024-11-13 16:04:39,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 326 transitions, 659 flow [2024-11-13 16:04:39,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 326 transitions, 659 flow [2024-11-13 16:04:39,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:04:39,144 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=None, 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;@4ec475a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:04:39,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 146 error locations. [2024-11-13 16:04:39,160 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:04:39,160 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-11-13 16:04:39,160 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:04:39,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:39,161 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:04:39,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2024-11-13 16:04:39,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1774895638, now seen corresponding path program 1 times [2024-11-13 16:04:39,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:39,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086715528] [2024-11-13 16:04:39,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:04:39,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:39,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086715528] [2024-11-13 16:04:39,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086715528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:39,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:39,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:04:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302722625] [2024-11-13 16:04:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:39,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:04:39,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:39,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:04:39,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:04:39,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 326 [2024-11-13 16:04:39,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 326 transitions, 659 flow. Second operand has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2024-11-13 16:04:39,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:39,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 326 [2024-11-13 16:04:39,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:41,360 INFO L124 PetriNetUnfolderBase]: 2443/5358 cut-off events. [2024-11-13 16:04:41,361 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 16:04:41,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10134 conditions, 5358 events. 2443/5358 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 39389 event pairs, 2142 based on Foata normal form. 1982/5792 useless extension candidates. Maximal degree in co-relation 10065. Up to 4771 conditions per place. [2024-11-13 16:04:41,413 INFO L140 encePairwiseOnDemand]: 256/326 looper letters, 193 selfloop transitions, 0 changer transitions 0/254 dead transitions. [2024-11-13 16:04:41,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 254 transitions, 901 flow [2024-11-13 16:04:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:04:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 16:04:41,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 385 transitions. [2024-11-13 16:04:41,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904907975460123 [2024-11-13 16:04:41,442 INFO L175 Difference]: Start difference. First operand has 250 places, 326 transitions, 659 flow. Second operand 2 states and 385 transitions. [2024-11-13 16:04:41,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 254 transitions, 901 flow [2024-11-13 16:04:41,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 254 transitions, 901 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:04:41,463 INFO L231 Difference]: Finished difference. Result has 237 places, 254 transitions, 515 flow [2024-11-13 16:04:41,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=515, PETRI_PLACES=237, PETRI_TRANSITIONS=254} [2024-11-13 16:04:41,472 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -13 predicate places. [2024-11-13 16:04:41,473 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 254 transitions, 515 flow [2024-11-13 16:04:41,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2024-11-13 16:04:41,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:41,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:41,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:04:41,474 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2024-11-13 16:04:41,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash -364010612, now seen corresponding path program 1 times [2024-11-13 16:04:41,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348850975] [2024-11-13 16:04:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:04:41,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348850975] [2024-11-13 16:04:41,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348850975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:41,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:41,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:04:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870924550] [2024-11-13 16:04:41,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:41,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:04:41,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:41,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:04:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:04:41,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 326 [2024-11-13 16:04:41,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 254 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-11-13 16:04:41,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:41,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 326 [2024-11-13 16:04:41,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:43,705 INFO L124 PetriNetUnfolderBase]: 2442/5365 cut-off events. [2024-11-13 16:04:43,705 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-13 16:04:43,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10135 conditions, 5365 events. 2442/5365 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 39667 event pairs, 1976 based on Foata normal form. 0/3794 useless extension candidates. Maximal degree in co-relation 10131. Up to 4588 conditions per place. [2024-11-13 16:04:43,746 INFO L140 encePairwiseOnDemand]: 323/326 looper letters, 365 selfloop transitions, 2 changer transitions 0/428 dead transitions. [2024-11-13 16:04:43,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 428 transitions, 1597 flow [2024-11-13 16:04:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:04:43,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:04:43,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions. [2024-11-13 16:04:43,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5633946830265849 [2024-11-13 16:04:43,752 INFO L175 Difference]: Start difference. First operand has 237 places, 254 transitions, 515 flow. Second operand 3 states and 551 transitions. [2024-11-13 16:04:43,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 428 transitions, 1597 flow [2024-11-13 16:04:43,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 428 transitions, 1597 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:04:43,769 INFO L231 Difference]: Finished difference. Result has 240 places, 254 transitions, 523 flow [2024-11-13 16:04:43,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=240, PETRI_TRANSITIONS=254} [2024-11-13 16:04:43,772 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -10 predicate places. [2024-11-13 16:04:43,773 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 254 transitions, 523 flow [2024-11-13 16:04:43,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-11-13 16:04:43,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:43,773 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:43,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:04:43,774 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2024-11-13 16:04:43,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:43,774 INFO L85 PathProgramCache]: Analyzing trace with hash -364010482, now seen corresponding path program 1 times [2024-11-13 16:04:43,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:43,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398616510] [2024-11-13 16:04:43,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:43,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:04:43,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:43,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398616510] [2024-11-13 16:04:43,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398616510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:43,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:43,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 16:04:43,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553797188] [2024-11-13 16:04:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:43,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:04:43,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:43,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:04:43,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:04:44,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 326 [2024-11-13 16:04:44,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 254 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2024-11-13 16:04:44,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:44,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 326 [2024-11-13 16:04:44,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:45,915 INFO L124 PetriNetUnfolderBase]: 2798/6183 cut-off events. [2024-11-13 16:04:45,915 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2024-11-13 16:04:45,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12092 conditions, 6183 events. 2798/6183 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 47096 event pairs, 2146 based on Foata normal form. 0/4641 useless extension candidates. Maximal degree in co-relation 12086. Up to 4763 conditions per place. [2024-11-13 16:04:45,961 INFO L140 encePairwiseOnDemand]: 322/326 looper letters, 366 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2024-11-13 16:04:45,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 425 transitions, 1601 flow [2024-11-13 16:04:45,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:04:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:04:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2024-11-13 16:04:45,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5531697341513292 [2024-11-13 16:04:45,968 INFO L175 Difference]: Start difference. First operand has 240 places, 254 transitions, 523 flow. Second operand 3 states and 541 transitions. [2024-11-13 16:04:45,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 425 transitions, 1601 flow [2024-11-13 16:04:45,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 425 transitions, 1597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:04:45,982 INFO L231 Difference]: Finished difference. Result has 238 places, 252 transitions, 519 flow [2024-11-13 16:04:45,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=238, PETRI_TRANSITIONS=252} [2024-11-13 16:04:45,986 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -12 predicate places. [2024-11-13 16:04:45,986 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 252 transitions, 519 flow [2024-11-13 16:04:45,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2024-11-13 16:04:45,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:45,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:45,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:04:45,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2024-11-13 16:04:45,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:45,988 INFO L85 PathProgramCache]: Analyzing trace with hash -364010481, now seen corresponding path program 1 times [2024-11-13 16:04:45,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:45,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193980514] [2024-11-13 16:04:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:45,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:04:46,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:46,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193980514] [2024-11-13 16:04:46,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193980514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:46,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:46,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:04:46,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20881650] [2024-11-13 16:04:46,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:46,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:04:46,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:46,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:04:46,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:04:46,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 326 [2024-11-13 16:04:46,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 252 transitions, 519 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2024-11-13 16:04:46,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:46,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 326 [2024-11-13 16:04:46,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:48,381 INFO L124 PetriNetUnfolderBase]: 2706/7838 cut-off events. [2024-11-13 16:04:48,382 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-13 16:04:48,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13553 conditions, 7838 events. 2706/7838 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 74166 event pairs, 346 based on Foata normal form. 0/6186 useless extension candidates. Maximal degree in co-relation 13547. Up to 3721 conditions per place. [2024-11-13 16:04:48,424 INFO L140 encePairwiseOnDemand]: 320/326 looper letters, 536 selfloop transitions, 5 changer transitions 0/598 dead transitions. [2024-11-13 16:04:48,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 598 transitions, 2293 flow [2024-11-13 16:04:48,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:04:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:04:48,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 778 transitions. [2024-11-13 16:04:48,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5966257668711656 [2024-11-13 16:04:48,428 INFO L175 Difference]: Start difference. First operand has 238 places, 252 transitions, 519 flow. Second operand 4 states and 778 transitions. [2024-11-13 16:04:48,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 598 transitions, 2293 flow [2024-11-13 16:04:48,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 598 transitions, 2289 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:04:48,457 INFO L231 Difference]: Finished difference. Result has 239 places, 252 transitions, 532 flow [2024-11-13 16:04:48,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=532, PETRI_PLACES=239, PETRI_TRANSITIONS=252} [2024-11-13 16:04:48,459 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -11 predicate places. [2024-11-13 16:04:48,460 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 252 transitions, 532 flow [2024-11-13 16:04:48,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2024-11-13 16:04:48,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:48,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:48,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:04:48,463 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2024-11-13 16:04:48,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash 151691539, now seen corresponding path program 1 times [2024-11-13 16:04:48,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:48,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127305475] [2024-11-13 16:04:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:48,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:04:48,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:48,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127305475] [2024-11-13 16:04:48,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127305475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:04:48,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389879430] [2024-11-13 16:04:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:48,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:04:48,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:04:48,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:04:48,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:04:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:48,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 16:04:48,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:04:49,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 16:04:49,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-13 16:04:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:04:49,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:04:49,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389879430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:49,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:04:49,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-13 16:04:49,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096123880] [2024-11-13 16:04:49,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:49,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:04:49,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:49,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:04:49,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:04:49,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 326 [2024-11-13 16:04:49,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 252 transitions, 532 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2024-11-13 16:04:49,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:49,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 326 [2024-11-13 16:04:49,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:50,902 INFO L124 PetriNetUnfolderBase]: 2269/4988 cut-off events. [2024-11-13 16:04:50,902 INFO L125 PetriNetUnfolderBase]: For 920/920 co-relation queries the response was YES. [2024-11-13 16:04:50,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10518 conditions, 4988 events. 2269/4988 cut-off events. For 920/920 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 36632 event pairs, 1675 based on Foata normal form. 0/3819 useless extension candidates. Maximal degree in co-relation 10511. Up to 3455 conditions per place. [2024-11-13 16:04:50,926 INFO L140 encePairwiseOnDemand]: 322/326 looper letters, 363 selfloop transitions, 3 changer transitions 0/424 dead transitions. [2024-11-13 16:04:50,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 424 transitions, 1608 flow [2024-11-13 16:04:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:04:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:04:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 610 transitions. [2024-11-13 16:04:50,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4677914110429448 [2024-11-13 16:04:50,934 INFO L175 Difference]: Start difference. First operand has 239 places, 252 transitions, 532 flow. Second operand 4 states and 610 transitions. [2024-11-13 16:04:50,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 424 transitions, 1608 flow [2024-11-13 16:04:50,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 424 transitions, 1603 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:04:50,945 INFO L231 Difference]: Finished difference. Result has 239 places, 251 transitions, 531 flow [2024-11-13 16:04:50,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=531, PETRI_PLACES=239, PETRI_TRANSITIONS=251} [2024-11-13 16:04:50,946 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -11 predicate places. [2024-11-13 16:04:50,947 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 251 transitions, 531 flow [2024-11-13 16:04:50,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2024-11-13 16:04:50,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:50,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:50,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:04:51,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:04:51,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2024-11-13 16:04:51,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:51,153 INFO L85 PathProgramCache]: Analyzing trace with hash 151691538, now seen corresponding path program 1 times [2024-11-13 16:04:51,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:51,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011838114] [2024-11-13 16:04:51,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:51,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:04:51,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:51,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011838114] [2024-11-13 16:04:51,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011838114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:04:51,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052135258] [2024-11-13 16:04:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:51,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:04:51,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:04:51,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:04:51,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:04:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:51,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:04:51,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:04:51,581 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-13 16:04:51,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-13 16:04:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:04:51,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:04:51,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052135258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:51,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:04:51,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-13 16:04:51,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914964956] [2024-11-13 16:04:51,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:51,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:04:51,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:51,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:04:51,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:04:51,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 326 [2024-11-13 16:04:51,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 251 transitions, 531 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2024-11-13 16:04:51,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:51,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 326 [2024-11-13 16:04:51,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:53,320 INFO L124 PetriNetUnfolderBase]: 2120/4708 cut-off events. [2024-11-13 16:04:53,321 INFO L125 PetriNetUnfolderBase]: For 931/933 co-relation queries the response was YES. [2024-11-13 16:04:53,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9954 conditions, 4708 events. 2120/4708 cut-off events. For 931/933 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 35501 event pairs, 1232 based on Foata normal form. 0/3743 useless extension candidates. Maximal degree in co-relation 9947. Up to 2803 conditions per place. [2024-11-13 16:04:53,349 INFO L140 encePairwiseOnDemand]: 321/326 looper letters, 534 selfloop transitions, 4 changer transitions 0/596 dead transitions. [2024-11-13 16:04:53,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 596 transitions, 2297 flow [2024-11-13 16:04:53,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:04:53,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:04:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 782 transitions. [2024-11-13 16:04:53,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5996932515337423 [2024-11-13 16:04:53,353 INFO L175 Difference]: Start difference. First operand has 239 places, 251 transitions, 531 flow. Second operand 4 states and 782 transitions. [2024-11-13 16:04:53,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 596 transitions, 2297 flow [2024-11-13 16:04:53,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 596 transitions, 2291 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 16:04:53,367 INFO L231 Difference]: Finished difference. Result has 238 places, 250 transitions, 531 flow [2024-11-13 16:04:53,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=531, PETRI_PLACES=238, PETRI_TRANSITIONS=250} [2024-11-13 16:04:53,368 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -12 predicate places. [2024-11-13 16:04:53,368 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 250 transitions, 531 flow [2024-11-13 16:04:53,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2024-11-13 16:04:53,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:53,368 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:53,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:04:53,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729f2aaf-9114-46b7-9172-a7a394bcf35c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 16:04:53,569 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2024-11-13 16:04:53,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:53,569 INFO L85 PathProgramCache]: Analyzing trace with hash 407477373, now seen corresponding path program 1 times [2024-11-13 16:04:53,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:53,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284003676] [2024-11-13 16:04:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:53,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:04:53,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:04:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:04:53,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:04:53,667 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:04:53,668 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (145 of 146 remaining) [2024-11-13 16:04:53,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (144 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (143 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (142 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (141 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (140 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (139 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (138 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (137 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (136 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (135 of 146 remaining) [2024-11-13 16:04:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (134 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (133 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (132 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (131 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (130 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (129 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (128 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (127 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (126 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (125 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (124 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (123 of 146 remaining) [2024-11-13 16:04:53,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (122 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (121 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (120 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (119 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (118 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 146 remaining) [2024-11-13 16:04:53,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (110 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (107 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (104 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 146 remaining) [2024-11-13 16:04:53,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (95 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr65REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 146 remaining) [2024-11-13 16:04:53,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 146 remaining) [2024-11-13 16:04:53,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 146 remaining) [2024-11-13 16:04:53,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 146 remaining) [2024-11-13 16:04:53,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 146 remaining) [2024-11-13 16:04:53,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr65REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 146 remaining) [2024-11-13 16:04:53,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 146 remaining) [2024-11-13 16:04:53,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 146 remaining) [2024-11-13 16:04:53,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:04:53,682 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:53,685 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 16:04:53,685 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 16:04:53,988 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 16:04:53,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 454 places, 589 transitions, 1194 flow [2024-11-13 16:04:54,171 INFO L124 PetriNetUnfolderBase]: 175/718 cut-off events. [2024-11-13 16:04:54,171 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 16:04:54,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 718 events. 175/718 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3929 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 602. Up to 12 conditions per place. [2024-11-13 16:04:54,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 454 places, 589 transitions, 1194 flow [2024-11-13 16:04:54,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 454 places, 589 transitions, 1194 flow [2024-11-13 16:04:54,222 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:04:54,223 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=None, 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;@4ec475a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:04:54,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 214 error locations. [2024-11-13 16:04:54,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:04:54,227 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-11-13 16:04:54,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:04:54,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:54,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:04:54,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 211 more)] === [2024-11-13 16:04:54,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:54,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1212809993, now seen corresponding path program 1 times [2024-11-13 16:04:54,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:54,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868067228] [2024-11-13 16:04:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:54,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:04:54,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:54,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868067228] [2024-11-13 16:04:54,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868067228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:54,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:54,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:04:54,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991824289] [2024-11-13 16:04:54,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:54,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:04:54,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:54,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:04:54,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:04:54,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 589 [2024-11-13 16:04:54,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 589 transitions, 1194 flow. Second operand has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2024-11-13 16:04:54,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:54,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 589 [2024-11-13 16:04:54,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand