./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB --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 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:15:51,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:15:52,024 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 05:15:52,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:15:52,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:15:52,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:15:52,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:15:52,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:15:52,067 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:15:52,067 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:15:52,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:15:52,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:15:52,068 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:15:52,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:15:52,069 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:15:52,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:15:52,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:15:52,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:15:52,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:15:52,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:15:52,070 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:15:52,070 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:15:52,070 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 05:15:52,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:15:52,071 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:15:52,071 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:15:52,071 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:15:52,071 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:15:52,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:15:52,072 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:15:52,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:15:52,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:15:52,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:15:52,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:15:52,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:15:52,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:15:52,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:15:52,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:15:52,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:15:52,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:15:52,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:15:52,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:15:52,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:15:52,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:15:52,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:15:52,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:15:52,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:15:52,074 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_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2024-11-28 05:15:52,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:15:52,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:15:52,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:15:52,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:15:52,477 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:15:52,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2024-11-28 05:15:56,276 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/aa2636b1b/f10849f7e4f44907a68e0efe9dc2ecd7/FLAG3e5f0c929 [2024-11-28 05:15:56,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:15:56,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2024-11-28 05:15:56,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/aa2636b1b/f10849f7e4f44907a68e0efe9dc2ecd7/FLAG3e5f0c929 [2024-11-28 05:15:57,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/aa2636b1b/f10849f7e4f44907a68e0efe9dc2ecd7 [2024-11-28 05:15:57,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:15:57,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:15:57,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:15:57,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:15:57,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:15:57,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:15:57" (1/1) ... [2024-11-28 05:15:57,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bddd6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:57, skipping insertion in model container [2024-11-28 05:15:57,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:15:57" (1/1) ... [2024-11-28 05:15:57,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:15:57,857 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:15:57,872 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:15:57,886 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:15:57,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:15:57,936 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 05:15:57,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@721b1158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:57, skipping insertion in model container [2024-11-28 05:15:57,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:15:57,939 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 05:15:57,941 INFO L158 Benchmark]: Toolchain (without parser) took 932.31ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 86.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:15:57,941 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:15:57,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 928.93ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 86.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:15:57,943 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 928.93ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 86.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB --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 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:16:01,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:16:01,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 05:16:01,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:16:01,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:16:01,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:16:01,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:16:01,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:16:01,388 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:16:01,389 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:16:01,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:16:01,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:16:01,389 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:16:01,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:16:01,390 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:16:01,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:16:01,390 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:16:01,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:16:01,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:16:01,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:16:01,391 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 05:16:01,391 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 05:16:01,391 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 05:16:01,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:16:01,391 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:16:01,391 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 05:16:01,391 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 05:16:01,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:16:01,394 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:16:01,394 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:16:01,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:16:01,395 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:16:01,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:16:01,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:16:01,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:16:01,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:16:01,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:16:01,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:16:01,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:16:01,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:16:01,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:16:01,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:16:01,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:16:01,398 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 05:16:01,398 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 05:16:01,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:16:01,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:16:01,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:16:01,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:16:01,398 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_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2024-11-28 05:16:01,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:16:01,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:16:01,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:16:01,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:16:01,827 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:16:01,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2024-11-28 05:16:05,580 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/bba94f2d8/605399c82402471385a90d431ae8f263/FLAG96e726ab4 [2024-11-28 05:16:06,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:16:06,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2024-11-28 05:16:06,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/bba94f2d8/605399c82402471385a90d431ae8f263/FLAG96e726ab4 [2024-11-28 05:16:06,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/data/bba94f2d8/605399c82402471385a90d431ae8f263 [2024-11-28 05:16:06,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:16:06,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:16:06,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:16:06,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:16:06,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:16:06,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:16:06" (1/1) ... [2024-11-28 05:16:06,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe06810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:06, skipping insertion in model container [2024-11-28 05:16:06,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:16:06" (1/1) ... [2024-11-28 05:16:06,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:16:07,021 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:16:07,046 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:16:07,066 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:16:07,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:16:07,121 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 05:16:07,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:16:07,233 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:16:07,239 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:16:07,241 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 05:16:07,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:16:07,256 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:16:07,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:16:07,445 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:16:07,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07 WrapperNode [2024-11-28 05:16:07,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:16:07,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:16:07,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:16:07,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:16:07,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,551 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2024-11-28 05:16:07,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:16:07,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:16:07,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:16:07,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:16:07,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,623 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2024-11-28 05:16:07,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,662 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:16:07,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:16:07,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:16:07,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:16:07,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (1/1) ... [2024-11-28 05:16:07,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:16:07,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:07,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:16:07,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:16:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 05:16:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 05:16:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 05:16:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-28 05:16:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-28 05:16:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 05:16:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:16:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:16:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 05:16:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 05:16:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 05:16:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 05:16:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 05:16:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 05:16:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 05:16:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 05:16:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 05:16:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:16:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:16:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:16:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:16:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:16:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:16:07,793 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:16:08,245 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:16:08,247 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:16:09,040 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:16:09,040 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:16:09,327 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:16:09,331 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:16:09,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:16:09 BoogieIcfgContainer [2024-11-28 05:16:09,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:16:09,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:16:09,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:16:09,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:16:09,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:16:06" (1/3) ... [2024-11-28 05:16:09,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d86fc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:16:09, skipping insertion in model container [2024-11-28 05:16:09,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:07" (2/3) ... [2024-11-28 05:16:09,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d86fc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:16:09, skipping insertion in model container [2024-11-28 05:16:09,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:16:09" (3/3) ... [2024-11-28 05:16:09,345 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2024-11-28 05:16:09,363 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:16:09,365 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_5-container_of.i that has 2 procedures, 99 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2024-11-28 05:16:09,365 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:16:09,519 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 05:16:09,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2024-11-28 05:16:09,705 INFO L124 PetriNetUnfolderBase]: 14/157 cut-off events. [2024-11-28 05:16:09,708 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 05:16:09,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 14/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 501 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-11-28 05:16:09,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2024-11-28 05:16:09,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2024-11-28 05:16:09,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:16:09,760 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;@47be22f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:16:09,761 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-28 05:16:09,768 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:16:09,768 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-28 05:16:09,768 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:16:09,768 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:09,769 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 05:16:09,770 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:09,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash 561254, now seen corresponding path program 1 times [2024-11-28 05:16:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:09,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556718803] [2024-11-28 05:16:09,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:09,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:09,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:09,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:09,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:16:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:10,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:16:10,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:10,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:10,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:10,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:10,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556718803] [2024-11-28 05:16:10,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556718803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:10,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:10,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:16:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575579645] [2024-11-28 05:16:10,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:10,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:10,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:10,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:10,330 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-11-28 05:16:10,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:10,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:10,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-11-28 05:16:10,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:13,249 INFO L124 PetriNetUnfolderBase]: 4409/10835 cut-off events. [2024-11-28 05:16:13,250 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-28 05:16:13,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17919 conditions, 10835 events. 4409/10835 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111305 event pairs, 559 based on Foata normal form. 792/8156 useless extension candidates. Maximal degree in co-relation 16922. Up to 6052 conditions per place. [2024-11-28 05:16:13,354 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-11-28 05:16:13,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2024-11-28 05:16:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:13,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:16:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-11-28 05:16:13,373 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2024-11-28 05:16:13,375 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2024-11-28 05:16:13,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2024-11-28 05:16:13,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 05:16:13,391 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-11-28 05:16:13,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-11-28 05:16:13,399 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-11-28 05:16:13,399 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-11-28 05:16:13,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:13,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:13,400 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 05:16:13,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:16:13,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:13,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:13,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:13,607 INFO L85 PathProgramCache]: Analyzing trace with hash 561255, now seen corresponding path program 1 times [2024-11-28 05:16:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:13,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278516314] [2024-11-28 05:16:13,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:13,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:13,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:13,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:16:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:13,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:16:13,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:13,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:13,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:13,875 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:13,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278516314] [2024-11-28 05:16:13,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278516314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:13,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:13,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:16:13,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050723833] [2024-11-28 05:16:13,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:13,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:13,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:13,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:13,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:14,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2024-11-28 05:16:14,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 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) [2024-11-28 05:16:14,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:14,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2024-11-28 05:16:14,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:16,159 INFO L124 PetriNetUnfolderBase]: 4409/10833 cut-off events. [2024-11-28 05:16:16,160 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-11-28 05:16:16,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18083 conditions, 10833 events. 4409/10833 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111595 event pairs, 559 based on Foata normal form. 1/7363 useless extension candidates. Maximal degree in co-relation 1994. Up to 6052 conditions per place. [2024-11-28 05:16:16,241 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2024-11-28 05:16:16,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2024-11-28 05:16:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:16:16,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-11-28 05:16:16,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2024-11-28 05:16:16,245 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2024-11-28 05:16:16,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2024-11-28 05:16:16,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:16:16,251 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2024-11-28 05:16:16,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2024-11-28 05:16:16,252 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-11-28 05:16:16,253 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2024-11-28 05:16:16,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 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) [2024-11-28 05:16:16,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:16,253 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 05:16:16,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:16:16,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:16,458 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:16,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:16,459 INFO L85 PathProgramCache]: Analyzing trace with hash 17397141, now seen corresponding path program 1 times [2024-11-28 05:16:16,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:16,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450434864] [2024-11-28 05:16:16,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:16,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:16,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:16,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:16,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:16:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:16,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:16:16,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:16,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:16,637 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:16,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450434864] [2024-11-28 05:16:16,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450434864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:16,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:16,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 05:16:16,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594221211] [2024-11-28 05:16:16,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:16,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:16,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:16,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:16,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:16,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2024-11-28 05:16:16,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:16,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:16,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2024-11-28 05:16:16,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:18,803 INFO L124 PetriNetUnfolderBase]: 4773/8523 cut-off events. [2024-11-28 05:16:18,803 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-11-28 05:16:18,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16335 conditions, 8523 events. 4773/8523 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 64195 event pairs, 4407 based on Foata normal form. 0/5704 useless extension candidates. Maximal degree in co-relation 8241. Up to 7034 conditions per place. [2024-11-28 05:16:18,846 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 3 changer transitions 2/133 dead transitions. [2024-11-28 05:16:18,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 133 transitions, 468 flow [2024-11-28 05:16:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:16:18,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2024-11-28 05:16:18,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2024-11-28 05:16:18,849 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 224 transitions. [2024-11-28 05:16:18,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 133 transitions, 468 flow [2024-11-28 05:16:18,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 133 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:16:18,856 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 225 flow [2024-11-28 05:16:18,857 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2024-11-28 05:16:18,858 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -9 predicate places. [2024-11-28 05:16:18,858 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 225 flow [2024-11-28 05:16:18,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:18,858 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:18,858 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:18,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:16:19,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:19,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:19,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:19,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1675627661, now seen corresponding path program 1 times [2024-11-28 05:16:19,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:19,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756762216] [2024-11-28 05:16:19,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:19,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:19,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:19,064 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:19,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:16:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:19,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:16:19,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:19,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:19,315 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756762216] [2024-11-28 05:16:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756762216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:19,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:19,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:19,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076519009] [2024-11-28 05:16:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:19,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:16:19,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:19,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:16:19,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:16:19,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2024-11-28 05:16:19,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:19,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:19,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2024-11-28 05:16:19,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:21,492 INFO L124 PetriNetUnfolderBase]: 5136/10771 cut-off events. [2024-11-28 05:16:21,493 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-28 05:16:21,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19345 conditions, 10771 events. 5136/10771 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 98912 event pairs, 559 based on Foata normal form. 0/8147 useless extension candidates. Maximal degree in co-relation 18015. Up to 6049 conditions per place. [2024-11-28 05:16:21,554 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2024-11-28 05:16:21,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 152 transitions, 569 flow [2024-11-28 05:16:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:16:21,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:16:21,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2024-11-28 05:16:21,558 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2024-11-28 05:16:21,558 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 225 flow. Second operand 4 states and 266 transitions. [2024-11-28 05:16:21,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 152 transitions, 569 flow [2024-11-28 05:16:21,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 152 transitions, 558 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 05:16:21,609 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 214 flow [2024-11-28 05:16:21,612 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2024-11-28 05:16:21,613 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2024-11-28 05:16:21,613 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 214 flow [2024-11-28 05:16:21,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:21,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:21,614 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:21,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:16:21,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:21,815 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:21,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1675627662, now seen corresponding path program 1 times [2024-11-28 05:16:21,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:21,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468197852] [2024-11-28 05:16:21,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:21,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:21,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:21,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:21,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:16:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:22,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:16:22,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:22,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:22,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:22,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:22,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468197852] [2024-11-28 05:16:22,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468197852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:22,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:22,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:16:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149583647] [2024-11-28 05:16:22,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:22,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:22,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:22,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:22,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:22,250 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2024-11-28 05:16:22,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:22,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:22,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2024-11-28 05:16:22,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:23,387 INFO L124 PetriNetUnfolderBase]: 4408/8143 cut-off events. [2024-11-28 05:16:23,387 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2024-11-28 05:16:23,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15606 conditions, 8143 events. 4408/8143 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 62957 event pairs, 3107 based on Foata normal form. 394/6163 useless extension candidates. Maximal degree in co-relation 6170. Up to 4910 conditions per place. [2024-11-28 05:16:23,430 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 105 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2024-11-28 05:16:23,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 133 transitions, 498 flow [2024-11-28 05:16:23,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:23,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:16:23,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2024-11-28 05:16:23,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2024-11-28 05:16:23,432 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 214 flow. Second operand 3 states and 223 transitions. [2024-11-28 05:16:23,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 133 transitions, 498 flow [2024-11-28 05:16:23,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 133 transitions, 486 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 05:16:23,440 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 225 flow [2024-11-28 05:16:23,440 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2024-11-28 05:16:23,441 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2024-11-28 05:16:23,441 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 225 flow [2024-11-28 05:16:23,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:23,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:23,442 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:23,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:16:23,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:23,643 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:23,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:23,645 INFO L85 PathProgramCache]: Analyzing trace with hash 480476947, now seen corresponding path program 1 times [2024-11-28 05:16:23,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:23,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445228048] [2024-11-28 05:16:23,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:23,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:23,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:23,649 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:23,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:16:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:23,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:16:23,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:23,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:23,925 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:23,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445228048] [2024-11-28 05:16:23,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445228048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:23,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:23,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:16:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352405971] [2024-11-28 05:16:23,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:23,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:16:23,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:23,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:16:23,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:16:24,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:16:24,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:24,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:24,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:16:24,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:25,664 INFO L124 PetriNetUnfolderBase]: 3844/8014 cut-off events. [2024-11-28 05:16:25,665 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-28 05:16:25,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14903 conditions, 8014 events. 3844/8014 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 67370 event pairs, 253 based on Foata normal form. 0/6199 useless extension candidates. Maximal degree in co-relation 9082. Up to 3713 conditions per place. [2024-11-28 05:16:25,705 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 169 selfloop transitions, 13 changer transitions 1/214 dead transitions. [2024-11-28 05:16:25,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 214 transitions, 830 flow [2024-11-28 05:16:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:16:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 05:16:25,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 534 transitions. [2024-11-28 05:16:25,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5383064516129032 [2024-11-28 05:16:25,708 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 225 flow. Second operand 8 states and 534 transitions. [2024-11-28 05:16:25,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 214 transitions, 830 flow [2024-11-28 05:16:25,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 214 transitions, 823 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:16:25,779 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 313 flow [2024-11-28 05:16:25,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=313, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2024-11-28 05:16:25,780 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2024-11-28 05:16:25,781 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 313 flow [2024-11-28 05:16:25,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:25,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:25,781 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:25,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:25,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:25,982 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:25,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash 480476948, now seen corresponding path program 1 times [2024-11-28 05:16:25,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:25,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056914790] [2024-11-28 05:16:25,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:25,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:25,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:25,987 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:25,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:16:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:26,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:16:26,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:26,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:26,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:26,354 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:26,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056914790] [2024-11-28 05:16:26,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056914790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:26,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:26,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:16:26,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89845137] [2024-11-28 05:16:26,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:26,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:16:26,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:26,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:16:26,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:16:26,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:16:26,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 313 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:26,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:26,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:16:26,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:28,357 INFO L124 PetriNetUnfolderBase]: 2867/6051 cut-off events. [2024-11-28 05:16:28,357 INFO L125 PetriNetUnfolderBase]: For 2274/2274 co-relation queries the response was YES. [2024-11-28 05:16:28,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12516 conditions, 6051 events. 2867/6051 cut-off events. For 2274/2274 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 48324 event pairs, 257 based on Foata normal form. 524/5632 useless extension candidates. Maximal degree in co-relation 11053. Up to 3099 conditions per place. [2024-11-28 05:16:28,380 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 151 selfloop transitions, 10 changer transitions 2/194 dead transitions. [2024-11-28 05:16:28,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 194 transitions, 827 flow [2024-11-28 05:16:28,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:16:28,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 05:16:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 465 transitions. [2024-11-28 05:16:28,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-28 05:16:28,385 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 313 flow. Second operand 7 states and 465 transitions. [2024-11-28 05:16:28,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 194 transitions, 827 flow [2024-11-28 05:16:28,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 194 transitions, 827 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 05:16:28,413 INFO L231 Difference]: Finished difference. Result has 123 places, 112 transitions, 366 flow [2024-11-28 05:16:28,414 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=366, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2024-11-28 05:16:28,414 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-11-28 05:16:28,415 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 366 flow [2024-11-28 05:16:28,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:28,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:28,415 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:28,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:16:28,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:28,616 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:28,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:28,616 INFO L85 PathProgramCache]: Analyzing trace with hash 458561999, now seen corresponding path program 1 times [2024-11-28 05:16:28,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:28,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [896033890] [2024-11-28 05:16:28,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:28,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:28,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:28,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:28,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:16:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:28,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:16:28,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:28,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:28,857 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:28,857 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896033890] [2024-11-28 05:16:28,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896033890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:28,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:28,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:16:28,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375556001] [2024-11-28 05:16:28,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:28,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:16:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:28,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:16:28,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:16:29,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:16:29,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 112 transitions, 366 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:29,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:29,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:16:29,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:30,797 INFO L124 PetriNetUnfolderBase]: 2636/5484 cut-off events. [2024-11-28 05:16:30,797 INFO L125 PetriNetUnfolderBase]: For 3778/3778 co-relation queries the response was YES. [2024-11-28 05:16:30,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12310 conditions, 5484 events. 2636/5484 cut-off events. For 3778/3778 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 42659 event pairs, 191 based on Foata normal form. 0/4807 useless extension candidates. Maximal degree in co-relation 10986. Up to 2221 conditions per place. [2024-11-28 05:16:30,819 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2024-11-28 05:16:30,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 222 transitions, 1105 flow [2024-11-28 05:16:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:16:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 05:16:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2024-11-28 05:16:30,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2024-11-28 05:16:30,823 INFO L175 Difference]: Start difference. First operand has 123 places, 112 transitions, 366 flow. Second operand 8 states and 530 transitions. [2024-11-28 05:16:30,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 222 transitions, 1105 flow [2024-11-28 05:16:30,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 222 transitions, 1075 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 05:16:30,836 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 469 flow [2024-11-28 05:16:30,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=469, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2024-11-28 05:16:30,837 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2024-11-28 05:16:30,837 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 469 flow [2024-11-28 05:16:30,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:30,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:30,838 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:30,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 05:16:31,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:31,038 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:31,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:31,039 INFO L85 PathProgramCache]: Analyzing trace with hash 458562000, now seen corresponding path program 1 times [2024-11-28 05:16:31,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:31,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149687449] [2024-11-28 05:16:31,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:31,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:31,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:31,041 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:31,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:16:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:31,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:16:31,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:31,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:31,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:31,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149687449] [2024-11-28 05:16:31,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149687449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:31,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:31,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:16:31,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469031607] [2024-11-28 05:16:31,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:31,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:16:31,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:31,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:16:31,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:16:31,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:16:31,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:31,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:31,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:16:31,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:33,220 INFO L124 PetriNetUnfolderBase]: 1987/4195 cut-off events. [2024-11-28 05:16:33,220 INFO L125 PetriNetUnfolderBase]: For 4454/4456 co-relation queries the response was YES. [2024-11-28 05:16:33,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10529 conditions, 4195 events. 1987/4195 cut-off events. For 4454/4456 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 31022 event pairs, 384 based on Foata normal form. 378/4449 useless extension candidates. Maximal degree in co-relation 9449. Up to 2291 conditions per place. [2024-11-28 05:16:33,236 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2024-11-28 05:16:33,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 191 transitions, 1027 flow [2024-11-28 05:16:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:16:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 05:16:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2024-11-28 05:16:33,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2024-11-28 05:16:33,241 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 469 flow. Second operand 7 states and 448 transitions. [2024-11-28 05:16:33,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 191 transitions, 1027 flow [2024-11-28 05:16:33,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 191 transitions, 1024 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 05:16:33,254 INFO L231 Difference]: Finished difference. Result has 137 places, 124 transitions, 540 flow [2024-11-28 05:16:33,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=540, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2024-11-28 05:16:33,255 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 19 predicate places. [2024-11-28 05:16:33,255 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 124 transitions, 540 flow [2024-11-28 05:16:33,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:33,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:33,256 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:33,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 05:16:33,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:33,456 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:33,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:33,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1841625201, now seen corresponding path program 1 times [2024-11-28 05:16:33,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:33,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430512615] [2024-11-28 05:16:33,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:33,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:33,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:33,460 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:33,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:16:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:33,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:16:33,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:33,680 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:33,681 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:33,682 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:33,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-28 05:16:33,759 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:33,760 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:33,761 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:33,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:16:33,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2024-11-28 05:16:33,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:16:33,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 65 [2024-11-28 05:16:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:34,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:34,009 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:34,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430512615] [2024-11-28 05:16:34,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430512615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:34,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:34,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:16:34,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419392100] [2024-11-28 05:16:34,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:34,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:16:34,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:34,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:16:34,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:16:34,410 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-11-28 05:16:34,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 124 transitions, 540 flow. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:34,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:34,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-11-28 05:16:34,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:40,338 INFO L124 PetriNetUnfolderBase]: 2833/5364 cut-off events. [2024-11-28 05:16:40,338 INFO L125 PetriNetUnfolderBase]: For 9085/9089 co-relation queries the response was YES. [2024-11-28 05:16:40,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14860 conditions, 5364 events. 2833/5364 cut-off events. For 9085/9089 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 38496 event pairs, 1545 based on Foata normal form. 244/5468 useless extension candidates. Maximal degree in co-relation 13301. Up to 3777 conditions per place. [2024-11-28 05:16:40,356 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 136 selfloop transitions, 27 changer transitions 0/191 dead transitions. [2024-11-28 05:16:40,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 191 transitions, 1156 flow [2024-11-28 05:16:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:16:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 05:16:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 379 transitions. [2024-11-28 05:16:40,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5094086021505376 [2024-11-28 05:16:40,359 INFO L175 Difference]: Start difference. First operand has 137 places, 124 transitions, 540 flow. Second operand 6 states and 379 transitions. [2024-11-28 05:16:40,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 191 transitions, 1156 flow [2024-11-28 05:16:40,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 191 transitions, 1131 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 05:16:40,376 INFO L231 Difference]: Finished difference. Result has 141 places, 151 transitions, 788 flow [2024-11-28 05:16:40,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=141, PETRI_TRANSITIONS=151} [2024-11-28 05:16:40,377 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2024-11-28 05:16:40,377 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 151 transitions, 788 flow [2024-11-28 05:16:40,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:40,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:40,378 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:40,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 05:16:40,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:40,579 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:40,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:40,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1970810627, now seen corresponding path program 1 times [2024-11-28 05:16:40,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:40,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066147651] [2024-11-28 05:16:40,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:40,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:40,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:40,582 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:40,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:16:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:40,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 05:16:40,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:40,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:40,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:41,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:16:41,077 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 [2024-11-28 05:16:41,100 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:16:41,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:16:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:41,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:41,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:41,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066147651] [2024-11-28 05:16:41,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066147651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:41,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:41,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:16:41,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308539879] [2024-11-28 05:16:41,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:41,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:16:41,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:41,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:16:41,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:16:41,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:16:41,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 151 transitions, 788 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:41,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:41,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:16:41,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:43,803 INFO L124 PetriNetUnfolderBase]: 2928/5803 cut-off events. [2024-11-28 05:16:43,803 INFO L125 PetriNetUnfolderBase]: For 10436/10442 co-relation queries the response was YES. [2024-11-28 05:16:43,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17915 conditions, 5803 events. 2928/5803 cut-off events. For 10436/10442 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 43944 event pairs, 607 based on Foata normal form. 39/5718 useless extension candidates. Maximal degree in co-relation 16083. Up to 2515 conditions per place. [2024-11-28 05:16:43,834 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 195 selfloop transitions, 24 changer transitions 0/251 dead transitions. [2024-11-28 05:16:43,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 251 transitions, 1673 flow [2024-11-28 05:16:43,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:16:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 05:16:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 557 transitions. [2024-11-28 05:16:43,838 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49910394265232977 [2024-11-28 05:16:43,839 INFO L175 Difference]: Start difference. First operand has 141 places, 151 transitions, 788 flow. Second operand 9 states and 557 transitions. [2024-11-28 05:16:43,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 251 transitions, 1673 flow [2024-11-28 05:16:43,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 251 transitions, 1664 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:16:43,889 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 827 flow [2024-11-28 05:16:43,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=827, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2024-11-28 05:16:43,890 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2024-11-28 05:16:43,890 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 827 flow [2024-11-28 05:16:43,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:43,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:43,891 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:43,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:44,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:44,093 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:44,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:44,093 INFO L85 PathProgramCache]: Analyzing trace with hash -30253055, now seen corresponding path program 1 times [2024-11-28 05:16:44,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:44,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244672960] [2024-11-28 05:16:44,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:44,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:44,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:44,097 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:44,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 05:16:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:44,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 05:16:44,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:44,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:44,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:44,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:16:44,582 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 [2024-11-28 05:16:44,599 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:16:44,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:16:44,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:44,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:44,626 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:44,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244672960] [2024-11-28 05:16:44,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244672960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:44,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:44,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:16:44,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820287243] [2024-11-28 05:16:44,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:44,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:16:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:44,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:16:44,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:16:45,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:16:45,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 827 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:45,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:45,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:16:45,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:47,450 INFO L124 PetriNetUnfolderBase]: 3339/6547 cut-off events. [2024-11-28 05:16:47,450 INFO L125 PetriNetUnfolderBase]: For 14093/14097 co-relation queries the response was YES. [2024-11-28 05:16:47,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20562 conditions, 6547 events. 3339/6547 cut-off events. For 14093/14097 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 50919 event pairs, 887 based on Foata normal form. 76/6532 useless extension candidates. Maximal degree in co-relation 17636. Up to 2361 conditions per place. [2024-11-28 05:16:47,487 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 213 selfloop transitions, 24 changer transitions 0/269 dead transitions. [2024-11-28 05:16:47,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 269 transitions, 1822 flow [2024-11-28 05:16:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:16:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 05:16:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 572 transitions. [2024-11-28 05:16:47,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5125448028673835 [2024-11-28 05:16:47,491 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 827 flow. Second operand 9 states and 572 transitions. [2024-11-28 05:16:47,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 269 transitions, 1822 flow [2024-11-28 05:16:47,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 269 transitions, 1770 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-28 05:16:47,549 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 831 flow [2024-11-28 05:16:47,549 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=765, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=831, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2024-11-28 05:16:47,550 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2024-11-28 05:16:47,550 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 831 flow [2024-11-28 05:16:47,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:47,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:47,550 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:47,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:47,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:47,751 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:47,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:47,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1783923114, now seen corresponding path program 1 times [2024-11-28 05:16:47,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:47,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1032168505] [2024-11-28 05:16:47,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:47,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:47,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:47,754 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:47,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:16:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:47,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:16:47,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:48,146 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_89| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89| (_ bv0 1))))) is different from true [2024-11-28 05:16:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:48,157 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:48,157 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:48,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032168505] [2024-11-28 05:16:48,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032168505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:48,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:48,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:48,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621196049] [2024-11-28 05:16:48,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:48,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:16:48,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:48,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:16:48,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-28 05:16:48,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 124 [2024-11-28 05:16:48,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 831 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:48,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:48,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 124 [2024-11-28 05:16:48,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:49,846 INFO L124 PetriNetUnfolderBase]: 3630/6717 cut-off events. [2024-11-28 05:16:49,847 INFO L125 PetriNetUnfolderBase]: For 16259/16261 co-relation queries the response was YES. [2024-11-28 05:16:49,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22018 conditions, 6717 events. 3630/6717 cut-off events. For 16259/16261 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 49755 event pairs, 1548 based on Foata normal form. 1/6615 useless extension candidates. Maximal degree in co-relation 19043. Up to 2794 conditions per place. [2024-11-28 05:16:49,902 INFO L140 encePairwiseOnDemand]: 98/124 looper letters, 138 selfloop transitions, 37 changer transitions 4/197 dead transitions. [2024-11-28 05:16:49,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 197 transitions, 1422 flow [2024-11-28 05:16:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:16:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 05:16:49,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2024-11-28 05:16:49,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2024-11-28 05:16:49,905 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 831 flow. Second operand 5 states and 250 transitions. [2024-11-28 05:16:49,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 197 transitions, 1422 flow [2024-11-28 05:16:49,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 197 transitions, 1387 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-28 05:16:49,989 INFO L231 Difference]: Finished difference. Result has 144 places, 165 transitions, 1083 flow [2024-11-28 05:16:49,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1083, PETRI_PLACES=144, PETRI_TRANSITIONS=165} [2024-11-28 05:16:49,990 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2024-11-28 05:16:49,990 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 165 transitions, 1083 flow [2024-11-28 05:16:49,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:49,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:49,990 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:50,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:16:50,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:50,194 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:50,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:50,195 INFO L85 PathProgramCache]: Analyzing trace with hash 714340402, now seen corresponding path program 1 times [2024-11-28 05:16:50,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:50,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912319707] [2024-11-28 05:16:50,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:50,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:50,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:50,198 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:50,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 05:16:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:50,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:16:50,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:50,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:50,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:50,454 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:50,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912319707] [2024-11-28 05:16:50,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912319707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:50,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:50,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:16:50,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996367778] [2024-11-28 05:16:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:50,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:50,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:50,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:50,583 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2024-11-28 05:16:50,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 165 transitions, 1083 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:50,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:50,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2024-11-28 05:16:50,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:51,689 INFO L124 PetriNetUnfolderBase]: 3428/6429 cut-off events. [2024-11-28 05:16:51,689 INFO L125 PetriNetUnfolderBase]: For 19210/19270 co-relation queries the response was YES. [2024-11-28 05:16:51,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24906 conditions, 6429 events. 3428/6429 cut-off events. For 19210/19270 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 47469 event pairs, 1989 based on Foata normal form. 25/6327 useless extension candidates. Maximal degree in co-relation 21731. Up to 5351 conditions per place. [2024-11-28 05:16:51,726 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 140 selfloop transitions, 5 changer transitions 0/175 dead transitions. [2024-11-28 05:16:51,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 175 transitions, 1425 flow [2024-11-28 05:16:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:51,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:16:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-11-28 05:16:51,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2024-11-28 05:16:51,728 INFO L175 Difference]: Start difference. First operand has 144 places, 165 transitions, 1083 flow. Second operand 3 states and 201 transitions. [2024-11-28 05:16:51,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 175 transitions, 1425 flow [2024-11-28 05:16:51,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 175 transitions, 1344 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-28 05:16:51,807 INFO L231 Difference]: Finished difference. Result has 140 places, 163 transitions, 1008 flow [2024-11-28 05:16:51,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1008, PETRI_PLACES=140, PETRI_TRANSITIONS=163} [2024-11-28 05:16:51,808 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 22 predicate places. [2024-11-28 05:16:51,808 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 163 transitions, 1008 flow [2024-11-28 05:16:51,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:51,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:51,809 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:51,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 05:16:52,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:52,009 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:52,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:52,010 INFO L85 PathProgramCache]: Analyzing trace with hash 714340401, now seen corresponding path program 1 times [2024-11-28 05:16:52,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:52,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728629220] [2024-11-28 05:16:52,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:52,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:52,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:52,013 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:52,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 05:16:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:52,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:52,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:52,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:52,252 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:52,252 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:52,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728629220] [2024-11-28 05:16:52,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728629220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:52,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:52,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:16:52,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425209988] [2024-11-28 05:16:52,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:52,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:52,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:52,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:52,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:52,354 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2024-11-28 05:16:52,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 163 transitions, 1008 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:52,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:52,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2024-11-28 05:16:52,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:53,468 INFO L124 PetriNetUnfolderBase]: 3428/6420 cut-off events. [2024-11-28 05:16:53,469 INFO L125 PetriNetUnfolderBase]: For 17396/17456 co-relation queries the response was YES. [2024-11-28 05:16:53,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24527 conditions, 6420 events. 3428/6420 cut-off events. For 17396/17456 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 47307 event pairs, 1989 based on Foata normal form. 25/6318 useless extension candidates. Maximal degree in co-relation 23138. Up to 5351 conditions per place. [2024-11-28 05:16:53,504 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 140 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2024-11-28 05:16:53,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 173 transitions, 1350 flow [2024-11-28 05:16:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:16:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-11-28 05:16:53,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2024-11-28 05:16:53,506 INFO L175 Difference]: Start difference. First operand has 140 places, 163 transitions, 1008 flow. Second operand 3 states and 201 transitions. [2024-11-28 05:16:53,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 173 transitions, 1350 flow [2024-11-28 05:16:53,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 173 transitions, 1340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:16:53,594 INFO L231 Difference]: Finished difference. Result has 138 places, 161 transitions, 1004 flow [2024-11-28 05:16:53,594 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1004, PETRI_PLACES=138, PETRI_TRANSITIONS=161} [2024-11-28 05:16:53,595 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 20 predicate places. [2024-11-28 05:16:53,595 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 161 transitions, 1004 flow [2024-11-28 05:16:53,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:53,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:53,595 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:53,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:53,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:53,796 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:53,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:53,796 INFO L85 PathProgramCache]: Analyzing trace with hash 669716591, now seen corresponding path program 1 times [2024-11-28 05:16:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:53,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969038325] [2024-11-28 05:16:53,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:53,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:53,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:53,799 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:53,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 05:16:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:54,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:16:54,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:54,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:54,127 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 05:16:54,128 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 21 treesize of output 20 [2024-11-28 05:16:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:54,149 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:54,149 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:54,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969038325] [2024-11-28 05:16:54,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969038325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:54,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:54,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:54,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241872039] [2024-11-28 05:16:54,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:54,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:16:54,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:54,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:16:54,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:16:54,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2024-11-28 05:16:54,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 161 transitions, 1004 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:54,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:54,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2024-11-28 05:16:54,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:55,671 INFO L124 PetriNetUnfolderBase]: 3595/6649 cut-off events. [2024-11-28 05:16:55,671 INFO L125 PetriNetUnfolderBase]: For 17735/17761 co-relation queries the response was YES. [2024-11-28 05:16:55,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25363 conditions, 6649 events. 3595/6649 cut-off events. For 17735/17761 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 48498 event pairs, 1868 based on Foata normal form. 9/6598 useless extension candidates. Maximal degree in co-relation 24131. Up to 3143 conditions per place. [2024-11-28 05:16:55,709 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 137 selfloop transitions, 18 changer transitions 0/179 dead transitions. [2024-11-28 05:16:55,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 179 transitions, 1406 flow [2024-11-28 05:16:55,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:16:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:16:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 233 transitions. [2024-11-28 05:16:55,712 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46975806451612906 [2024-11-28 05:16:55,712 INFO L175 Difference]: Start difference. First operand has 138 places, 161 transitions, 1004 flow. Second operand 4 states and 233 transitions. [2024-11-28 05:16:55,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 179 transitions, 1406 flow [2024-11-28 05:16:55,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 179 transitions, 1396 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:16:55,795 INFO L231 Difference]: Finished difference. Result has 135 places, 157 transitions, 1022 flow [2024-11-28 05:16:55,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1022, PETRI_PLACES=135, PETRI_TRANSITIONS=157} [2024-11-28 05:16:55,796 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 17 predicate places. [2024-11-28 05:16:55,796 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 157 transitions, 1022 flow [2024-11-28 05:16:55,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:55,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:55,796 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:55,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:55,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:55,997 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:55,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash 669716592, now seen corresponding path program 1 times [2024-11-28 05:16:55,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:55,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371280114] [2024-11-28 05:16:55,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:55,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:55,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:56,000 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:56,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 05:16:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:56,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:16:56,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:56,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:16:56,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:16:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:16:56,527 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 [2024-11-28 05:16:56,548 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:16:56,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:16:56,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:56,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:56,580 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:56,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371280114] [2024-11-28 05:16:56,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371280114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:56,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:56,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:56,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006576504] [2024-11-28 05:16:56,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:56,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:16:56,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:56,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:16:56,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:16:56,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2024-11-28 05:16:56,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 157 transitions, 1022 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:56,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:56,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2024-11-28 05:16:56,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:58,258 INFO L124 PetriNetUnfolderBase]: 3372/6308 cut-off events. [2024-11-28 05:16:58,258 INFO L125 PetriNetUnfolderBase]: For 19062/19122 co-relation queries the response was YES. [2024-11-28 05:16:58,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24399 conditions, 6308 events. 3372/6308 cut-off events. For 19062/19122 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 46702 event pairs, 1740 based on Foata normal form. 24/6268 useless extension candidates. Maximal degree in co-relation 21169. Up to 3035 conditions per place. [2024-11-28 05:16:58,285 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 142 selfloop transitions, 16 changer transitions 0/179 dead transitions. [2024-11-28 05:16:58,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 179 transitions, 1450 flow [2024-11-28 05:16:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:16:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:16:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-11-28 05:16:58,287 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4475806451612903 [2024-11-28 05:16:58,287 INFO L175 Difference]: Start difference. First operand has 135 places, 157 transitions, 1022 flow. Second operand 4 states and 222 transitions. [2024-11-28 05:16:58,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 179 transitions, 1450 flow [2024-11-28 05:16:58,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 179 transitions, 1414 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 05:16:58,359 INFO L231 Difference]: Finished difference. Result has 131 places, 153 transitions, 1010 flow [2024-11-28 05:16:58,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1010, PETRI_PLACES=131, PETRI_TRANSITIONS=153} [2024-11-28 05:16:58,359 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2024-11-28 05:16:58,359 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 153 transitions, 1010 flow [2024-11-28 05:16:58,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:58,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:58,360 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:58,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 05:16:58,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:58,560 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:58,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:58,561 INFO L85 PathProgramCache]: Analyzing trace with hash 506316011, now seen corresponding path program 1 times [2024-11-28 05:16:58,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:58,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521408750] [2024-11-28 05:16:58,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:58,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:58,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:58,565 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:58,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 05:16:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:58,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:58,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:58,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:58,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:58,800 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:58,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521408750] [2024-11-28 05:16:58,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521408750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:58,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:58,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:16:58,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136158517] [2024-11-28 05:16:58,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:58,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:16:58,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:58,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:16:58,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:16:58,810 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2024-11-28 05:16:58,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 153 transitions, 1010 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:58,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:16:58,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2024-11-28 05:16:58,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:16:59,365 INFO L124 PetriNetUnfolderBase]: 455/835 cut-off events. [2024-11-28 05:16:59,365 INFO L125 PetriNetUnfolderBase]: For 1426/1426 co-relation queries the response was YES. [2024-11-28 05:16:59,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 835 events. 455/835 cut-off events. For 1426/1426 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3432 event pairs, 63 based on Foata normal form. 64/881 useless extension candidates. Maximal degree in co-relation 2917. Up to 484 conditions per place. [2024-11-28 05:16:59,368 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 75 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-28 05:16:59,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 103 transitions, 623 flow [2024-11-28 05:16:59,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:16:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:16:59,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2024-11-28 05:16:59,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4879032258064516 [2024-11-28 05:16:59,371 INFO L175 Difference]: Start difference. First operand has 131 places, 153 transitions, 1010 flow. Second operand 4 states and 242 transitions. [2024-11-28 05:16:59,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 103 transitions, 623 flow [2024-11-28 05:16:59,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 103 transitions, 478 flow, removed 25 selfloop flow, removed 26 redundant places. [2024-11-28 05:16:59,380 INFO L231 Difference]: Finished difference. Result has 89 places, 77 transitions, 234 flow [2024-11-28 05:16:59,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=89, PETRI_TRANSITIONS=77} [2024-11-28 05:16:59,381 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -29 predicate places. [2024-11-28 05:16:59,381 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 77 transitions, 234 flow [2024-11-28 05:16:59,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:59,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:16:59,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:59,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:59,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:59,582 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:16:59,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:59,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2090228439, now seen corresponding path program 1 times [2024-11-28 05:16:59,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:16:59,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27162841] [2024-11-28 05:16:59,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:59,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:59,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:59,585 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:59,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 05:16:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:59,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:16:59,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:59,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:16:59,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:16:59,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:16:59,853 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:59,853 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:16:59,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-28 05:16:59,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:16:59,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 53 [2024-11-28 05:16:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:59,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:59,932 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:16:59,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27162841] [2024-11-28 05:16:59,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27162841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:59,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:59,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:16:59,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710324988] [2024-11-28 05:16:59,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:59,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:59,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:16:59,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:59,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:00,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-11-28 05:17:00,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 77 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:00,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:17:00,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-11-28 05:17:00,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:17:00,618 INFO L124 PetriNetUnfolderBase]: 468/875 cut-off events. [2024-11-28 05:17:00,618 INFO L125 PetriNetUnfolderBase]: For 708/708 co-relation queries the response was YES. [2024-11-28 05:17:00,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2443 conditions, 875 events. 468/875 cut-off events. For 708/708 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3413 event pairs, 382 based on Foata normal form. 0/853 useless extension candidates. Maximal degree in co-relation 2433. Up to 777 conditions per place. [2024-11-28 05:17:00,620 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 66 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2024-11-28 05:17:00,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 417 flow [2024-11-28 05:17:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:17:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 182 transitions. [2024-11-28 05:17:00,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.489247311827957 [2024-11-28 05:17:00,622 INFO L175 Difference]: Start difference. First operand has 89 places, 77 transitions, 234 flow. Second operand 3 states and 182 transitions. [2024-11-28 05:17:00,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 417 flow [2024-11-28 05:17:00,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 90 transitions, 405 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 05:17:00,624 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 266 flow [2024-11-28 05:17:00,624 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2024-11-28 05:17:00,625 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -28 predicate places. [2024-11-28 05:17:00,625 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 266 flow [2024-11-28 05:17:00,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:00,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:17:00,625 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:00,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 05:17:00,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:00,825 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:17:00,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:00,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1764922576, now seen corresponding path program 1 times [2024-11-28 05:17:00,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:17:00,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701850808] [2024-11-28 05:17:00,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:00,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:00,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:00,831 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:00,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 05:17:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:01,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:17:01,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:01,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:17:01,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:17:01,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:17:01,088 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:17:01,088 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:17:01,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-28 05:17:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:01,150 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:17:01,150 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:17:01,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701850808] [2024-11-28 05:17:01,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701850808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:01,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:01,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:17:01,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731991025] [2024-11-28 05:17:01,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:01,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:01,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:17:01,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:01,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:01,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-11-28 05:17:01,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:01,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:17:01,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-11-28 05:17:01,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:17:01,843 INFO L124 PetriNetUnfolderBase]: 477/902 cut-off events. [2024-11-28 05:17:01,844 INFO L125 PetriNetUnfolderBase]: For 653/653 co-relation queries the response was YES. [2024-11-28 05:17:01,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 902 events. 477/902 cut-off events. For 653/653 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3549 event pairs, 395 based on Foata normal form. 0/888 useless extension candidates. Maximal degree in co-relation 2524. Up to 800 conditions per place. [2024-11-28 05:17:01,847 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 68 selfloop transitions, 7 changer transitions 0/94 dead transitions. [2024-11-28 05:17:01,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 477 flow [2024-11-28 05:17:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:01,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:17:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2024-11-28 05:17:01,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48655913978494625 [2024-11-28 05:17:01,849 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 266 flow. Second operand 3 states and 181 transitions. [2024-11-28 05:17:01,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 94 transitions, 477 flow [2024-11-28 05:17:01,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 94 transitions, 453 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-28 05:17:01,852 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 314 flow [2024-11-28 05:17:01,852 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2024-11-28 05:17:01,852 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -26 predicate places. [2024-11-28 05:17:01,852 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 314 flow [2024-11-28 05:17:01,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:01,853 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:17:01,853 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:01,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 05:17:02,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:02,053 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:17:02,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:02,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1908956233, now seen corresponding path program 1 times [2024-11-28 05:17:02,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:17:02,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155485046] [2024-11-28 05:17:02,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:02,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:02,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:02,057 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:02,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 05:17:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:02,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 05:17:02,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:02,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-28 05:17:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:02,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:17:02,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:17:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155485046] [2024-11-28 05:17:02,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155485046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:02,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:02,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:17:02,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753750001] [2024-11-28 05:17:02,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:02,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:17:02,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:17:02,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:17:02,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:17:02,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:17:02,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:02,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:17:02,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:17:02,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:17:04,746 INFO L124 PetriNetUnfolderBase]: 1107/2060 cut-off events. [2024-11-28 05:17:04,746 INFO L125 PetriNetUnfolderBase]: For 1829/1829 co-relation queries the response was YES. [2024-11-28 05:17:04,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5915 conditions, 2060 events. 1107/2060 cut-off events. For 1829/1829 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11013 event pairs, 176 based on Foata normal form. 16/2052 useless extension candidates. Maximal degree in co-relation 5903. Up to 550 conditions per place. [2024-11-28 05:17:04,753 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 163 selfloop transitions, 24 changer transitions 0/209 dead transitions. [2024-11-28 05:17:04,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 209 transitions, 1197 flow [2024-11-28 05:17:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:17:04,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 05:17:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 631 transitions. [2024-11-28 05:17:04,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4626099706744868 [2024-11-28 05:17:04,756 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 314 flow. Second operand 11 states and 631 transitions. [2024-11-28 05:17:04,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 209 transitions, 1197 flow [2024-11-28 05:17:04,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 209 transitions, 1165 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 05:17:04,764 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 487 flow [2024-11-28 05:17:04,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=487, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2024-11-28 05:17:04,765 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -11 predicate places. [2024-11-28 05:17:04,765 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 487 flow [2024-11-28 05:17:04,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:04,766 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:17:04,766 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:04,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 05:17:04,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:04,967 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:17:04,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:04,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1910879249, now seen corresponding path program 2 times [2024-11-28 05:17:04,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:17:04,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729367552] [2024-11-28 05:17:04,968 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:17:04,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:04,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:04,970 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:04,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 05:17:05,250 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:17:05,250 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:17:05,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 05:17:05,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:05,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-28 05:17:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:05,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:17:05,421 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:17:05,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729367552] [2024-11-28 05:17:05,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729367552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:05,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:05,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:17:05,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108311784] [2024-11-28 05:17:05,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:05,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:17:05,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:17:05,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:17:05,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:17:05,423 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:17:05,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 487 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:05,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:17:05,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:17:05,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:17:07,245 INFO L124 PetriNetUnfolderBase]: 1301/2462 cut-off events. [2024-11-28 05:17:07,245 INFO L125 PetriNetUnfolderBase]: For 5451/5451 co-relation queries the response was YES. [2024-11-28 05:17:07,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8493 conditions, 2462 events. 1301/2462 cut-off events. For 5451/5451 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 14055 event pairs, 82 based on Foata normal form. 16/2410 useless extension candidates. Maximal degree in co-relation 8474. Up to 854 conditions per place. [2024-11-28 05:17:07,255 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 147 selfloop transitions, 39 changer transitions 0/208 dead transitions. [2024-11-28 05:17:07,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 208 transitions, 1442 flow [2024-11-28 05:17:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:17:07,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 05:17:07,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 651 transitions. [2024-11-28 05:17:07,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-11-28 05:17:07,258 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 487 flow. Second operand 12 states and 651 transitions. [2024-11-28 05:17:07,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 208 transitions, 1442 flow [2024-11-28 05:17:07,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 208 transitions, 1405 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-28 05:17:07,271 INFO L231 Difference]: Finished difference. Result has 118 places, 121 transitions, 728 flow [2024-11-28 05:17:07,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=728, PETRI_PLACES=118, PETRI_TRANSITIONS=121} [2024-11-28 05:17:07,272 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2024-11-28 05:17:07,272 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 121 transitions, 728 flow [2024-11-28 05:17:07,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:07,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:17:07,272 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:07,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 05:17:07,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:07,473 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:17:07,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:07,473 INFO L85 PathProgramCache]: Analyzing trace with hash 710335917, now seen corresponding path program 3 times [2024-11-28 05:17:07,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:17:07,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1741465954] [2024-11-28 05:17:07,474 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:17:07,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:07,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:07,476 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:07,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 05:17:07,753 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 05:17:07,753 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:17:07,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 05:17:07,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:07,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-28 05:17:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:07,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:17:07,953 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:17:07,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741465954] [2024-11-28 05:17:07,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741465954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:07,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:07,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:17:07,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136504993] [2024-11-28 05:17:07,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:07,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:17:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:17:07,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:17:07,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:17:07,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:17:07,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 121 transitions, 728 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:07,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:17:07,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:17:07,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:17:09,628 INFO L124 PetriNetUnfolderBase]: 1197/2306 cut-off events. [2024-11-28 05:17:09,628 INFO L125 PetriNetUnfolderBase]: For 7200/7200 co-relation queries the response was YES. [2024-11-28 05:17:09,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8727 conditions, 2306 events. 1197/2306 cut-off events. For 7200/7200 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 13081 event pairs, 154 based on Foata normal form. 16/2254 useless extension candidates. Maximal degree in co-relation 8704. Up to 1432 conditions per place. [2024-11-28 05:17:09,637 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 40 changer transitions 0/182 dead transitions. [2024-11-28 05:17:09,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 182 transitions, 1440 flow [2024-11-28 05:17:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:17:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 05:17:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 541 transitions. [2024-11-28 05:17:09,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43629032258064515 [2024-11-28 05:17:09,639 INFO L175 Difference]: Start difference. First operand has 118 places, 121 transitions, 728 flow. Second operand 10 states and 541 transitions. [2024-11-28 05:17:09,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 182 transitions, 1440 flow [2024-11-28 05:17:09,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 182 transitions, 1357 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-11-28 05:17:09,658 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 1005 flow [2024-11-28 05:17:09,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1005, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-11-28 05:17:09,659 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 9 predicate places. [2024-11-28 05:17:09,659 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 1005 flow [2024-11-28 05:17:09,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:09,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:17:09,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:09,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 05:17:09,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:09,860 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:17:09,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:09,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1014886867, now seen corresponding path program 4 times [2024-11-28 05:17:09,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:17:09,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546146390] [2024-11-28 05:17:09,861 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:17:09,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:09,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:09,863 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:09,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 05:17:10,142 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:17:10,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:17:10,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 05:17:10,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:10,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-28 05:17:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:17:10,313 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:17:10,313 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:17:10,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546146390] [2024-11-28 05:17:10,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546146390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:10,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:17:10,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866174795] [2024-11-28 05:17:10,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:10,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:17:10,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:17:10,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:17:10,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:17:10,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-11-28 05:17:10,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 1005 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:10,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:17:10,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-11-28 05:17:10,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:17:12,208 INFO L124 PetriNetUnfolderBase]: 1412/2790 cut-off events. [2024-11-28 05:17:12,209 INFO L125 PetriNetUnfolderBase]: For 9981/9981 co-relation queries the response was YES. [2024-11-28 05:17:12,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11094 conditions, 2790 events. 1412/2790 cut-off events. For 9981/9981 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 16884 event pairs, 167 based on Foata normal form. 32/2730 useless extension candidates. Maximal degree in co-relation 11065. Up to 1352 conditions per place. [2024-11-28 05:17:12,222 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 188 selfloop transitions, 50 changer transitions 0/260 dead transitions. [2024-11-28 05:17:12,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 260 transitions, 2185 flow [2024-11-28 05:17:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:17:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 05:17:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 680 transitions. [2024-11-28 05:17:12,224 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45698924731182794 [2024-11-28 05:17:12,224 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 1005 flow. Second operand 12 states and 680 transitions. [2024-11-28 05:17:12,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 260 transitions, 2185 flow [2024-11-28 05:17:12,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 260 transitions, 2067 flow, removed 54 selfloop flow, removed 2 redundant places. [2024-11-28 05:17:12,256 INFO L231 Difference]: Finished difference. Result has 142 places, 152 transitions, 1275 flow [2024-11-28 05:17:12,256 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1275, PETRI_PLACES=142, PETRI_TRANSITIONS=152} [2024-11-28 05:17:12,257 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2024-11-28 05:17:12,257 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 152 transitions, 1275 flow [2024-11-28 05:17:12,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:12,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:17:12,257 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:12,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 05:17:12,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:12,458 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-28 05:17:12,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:12,458 INFO L85 PathProgramCache]: Analyzing trace with hash 910036231, now seen corresponding path program 5 times [2024-11-28 05:17:12,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:17:12,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393193855] [2024-11-28 05:17:12,459 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:17:12,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:12,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:12,462 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:12,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 05:17:38,647 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:17:38,647 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 05:17:38,647 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:18:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:18:02,027 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 05:18:02,028 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:18:02,028 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2024-11-28 05:18:02,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2024-11-28 05:18:02,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2024-11-28 05:18:02,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2024-11-28 05:18:02,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2024-11-28 05:18:02,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2024-11-28 05:18:02,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2024-11-28 05:18:02,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (32 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (29 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK (24 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2024-11-28 05:18:02,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2024-11-28 05:18:02,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2024-11-28 05:18:02,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2024-11-28 05:18:02,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2024-11-28 05:18:02,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2024-11-28 05:18:02,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2024-11-28 05:18:02,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2024-11-28 05:18:02,034 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2024-11-28 05:18:02,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 05:18:02,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:18:02,235 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:02,308 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 05:18:02,308 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:18:02,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:18:02 BasicIcfg [2024-11-28 05:18:02,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:18:02,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:18:02,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:18:02,319 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:18:02,320 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:16:09" (3/4) ... [2024-11-28 05:18:02,323 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 05:18:02,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:18:02,325 INFO L158 Benchmark]: Toolchain (without parser) took 116141.24ms. Allocated memory was 83.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 57.4MB in the beginning and 502.1MB in the end (delta: -444.8MB). Peak memory consumption was 673.1MB. Max. memory is 16.1GB. [2024-11-28 05:18:02,325 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:18:02,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1259.36ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 51.3MB in the end (delta: 5.7MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-11-28 05:18:02,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.72ms. Allocated memory is still 83.9MB. Free memory was 51.3MB in the beginning and 48.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:18:02,327 INFO L158 Benchmark]: Boogie Preprocessor took 129.17ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 44.4MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:18:02,328 INFO L158 Benchmark]: RCFGBuilder took 1649.52ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 42.7MB in the end (delta: 1.7MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-11-28 05:18:02,328 INFO L158 Benchmark]: TraceAbstraction took 112984.33ms. Allocated memory was 83.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 41.8MB in the beginning and 502.2MB in the end (delta: -460.4MB). Peak memory consumption was 653.7MB. Max. memory is 16.1GB. [2024-11-28 05:18:02,328 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 1.2GB. Free memory was 502.2MB in the beginning and 502.1MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:18:02,333 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1259.36ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 51.3MB in the end (delta: 5.7MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.72ms. Allocated memory is still 83.9MB. Free memory was 51.3MB in the beginning and 48.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.17ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 44.4MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1649.52ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 42.7MB in the end (delta: 1.7MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * TraceAbstraction took 112984.33ms. Allocated memory was 83.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 41.8MB in the beginning and 502.2MB in the end (delta: -460.4MB). Peak memory consumption was 653.7MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 1.2GB. Free memory was 502.2MB in the beginning and 502.1MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL, EXPR 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={32768:24}, \old(data)={32768:0}, d={32768:24}, data={32768:0}, res=0, t1=8388607, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3907] 1 data->shared.a = 1 VAL [\old(arg)={32768:24}, arg={32768:24}, data={32768:0}, dev={32768:24}, t1=8388607, t2=8388608] [L3910] EXPR 1 data->shared.b [L3910] 1 int lb = data->shared.b; [L3913] 1 data->shared.b = lb + 1 VAL [\old(arg)={32768:24}, arg={32768:24}, data={32768:0}, dev={32768:24}, lb=0, t1=8388607, t2=8388608] [L3916] 1 return 0; [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={32768:24}, \old(data)={32768:0}, \result={0:0}, arg={32768:24}, d={32768:24}, data={32768:0}, data={32768:0}, dev={32768:24}, lb=0, res=0, t1=8388607, t2=8388608] [L3931] 0 return 0; VAL [\old(arg)={32768:24}, \old(data)={32768:0}, \result=0, \result={0:0}, arg={32768:24}, d={32768:24}, data={32768:0}, data={32768:0}, dev={32768:24}, lb=0, res=0, t1=8388607, t2=8388608] [L3902] 2 struct device *dev = (struct device*)arg; [L3903] 2 struct my_data *data; [L3904] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3966] RET, EXPR 0 my_drv_probe(&data) [L3966] 0 probe_ret = my_drv_probe(&data) [L3967] COND TRUE 0 probe_ret==0 [L3968] CALL 0 my_drv_disconnect(&data) [L3937] 0 void *status; VAL [\old(arg)={32768:24}, \old(data)={32768:0}, \result={0:0}, arg={32768:24}, data={32768:0}, data={32768:0}, dev={32768:24}, lb=0, status={-2147483647:0}, t1=8388607, t2=8388608] [L3938] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\old(arg)={32768:24}, \old(data)={32768:0}, \result={0:0}, arg={32768:24}, data={32768:0}, data={32768:0}, dev={32768:24}, lb=0, status={-2147483647:0}, t1=8388607, t2=8388608] [L3941] 0 data->shared.a = 3 VAL [\old(arg)={32768:24}, \result={0:0}, arg={32768:24}, data={32768:0}, dev={32768:24}, lb=0, t1=8388607, t2=8388608] [L3907] 2 data->shared.a = 1 VAL [\old(arg)={32768:24}, \result={0:0}, arg={32768:24}, data={32768:0}, dev={32768:24}, lb=0, t1=8388607, t2=8388608] [L3944] 0 data->shared.b = 3 VAL [\old(arg)={32768:24}, \result={0:0}, arg={32768:24}, data={32768:0}, dev={32768:24}, lb=0, t1=8388607, t2=8388608] [L3947] EXPR 0 data->shared.a [L3947] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_5-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_5-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={32768:24}, \result={0:0}, arg={32768:24}, data={32768:0}, dev={32768:24}, lb=0, t1=8388607, t2=8388608] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 131 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 112.7s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 48.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3348 SdHoareTripleChecker+Valid, 28.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2787 mSDsluCounter, 197 SdHoareTripleChecker+Invalid, 24.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 151 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7648 IncrementalHoareTripleChecker+Invalid, 7914 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 138 mSDtfsCounter, 7648 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1275occurred in iteration=24, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 26.9s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 431 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 379 ConstructedInterpolants, 2 QuantifiedInterpolants, 2428 SizeOfPredicates, 172 NumberOfNonLiveVariables, 3747 ConjunctsInSsa, 281 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 05:18:02,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00a34977-f190-4d39-a1ff-6938617fa98a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample