./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 185c5ecec118867d41d6d4e251a2153dc547f1cc961cdbc2b790292b6debb75b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:29:15,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:29:15,656 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:29:15,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:29:15,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:29:15,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:29:15,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:29:15,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:29:15,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:29:15,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:29:15,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:29:15,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:29:15,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:29:15,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:29:15,689 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:29:15,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:29:15,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:29:15,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:29:15,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:29:15,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:29:15,690 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:29:15,691 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:29:15,691 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:29:15,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:29:15,692 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:29:15,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:29:15,692 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:29:15,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:29:15,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:29:15,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:29:15,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:29:15,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:29:15,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:29:15,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:29:15,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:29:15,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:29:15,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:29:15,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:29:15,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:29:15,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:29:15,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:29:15,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:29:15,696 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 185c5ecec118867d41d6d4e251a2153dc547f1cc961cdbc2b790292b6debb75b [2024-10-24 19:29:15,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:29:15,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:29:15,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:29:15,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:29:15,952 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:29:15,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i [2024-10-24 19:29:17,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:29:18,076 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:29:18,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i [2024-10-24 19:29:18,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428cbf298/e38700b78dd543a59df8a9d5cf4a4c28/FLAG96351d956 [2024-10-24 19:29:18,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428cbf298/e38700b78dd543a59df8a9d5cf4a4c28 [2024-10-24 19:29:18,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:29:18,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:29:18,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:29:18,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:29:18,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:29:18,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:29:18" (1/1) ... [2024-10-24 19:29:18,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704532e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:18, skipping insertion in model container [2024-10-24 19:29:18,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:29:18" (1/1) ... [2024-10-24 19:29:18,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:29:19,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:29:19,919 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) [2024-10-24 19:29:19,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3170f9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:19, skipping insertion in model container [2024-10-24 19:29:19,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:29:19,921 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 19:29:19,922 INFO L158 Benchmark]: Toolchain (without parser) took 1621.27ms. Allocated memory is still 211.8MB. Free memory was 134.6MB in the beginning and 124.6MB in the end (delta: 10.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 19:29:19,922 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:29:19,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1617.72ms. Allocated memory is still 211.8MB. Free memory was 134.6MB in the beginning and 125.5MB in the end (delta: 9.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 19:29:19,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1617.72ms. Allocated memory is still 211.8MB. Free memory was 134.6MB in the beginning and 125.5MB in the end (delta: 9.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5389]: 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 185c5ecec118867d41d6d4e251a2153dc547f1cc961cdbc2b790292b6debb75b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:29:22,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:29:22,274 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 19:29:22,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:29:22,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:29:22,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:29:22,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:29:22,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:29:22,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:29:22,320 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:29:22,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:29:22,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:29:22,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:29:22,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:29:22,322 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:29:22,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:29:22,323 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:29:22,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:29:22,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:29:22,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:29:22,326 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:29:22,327 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:29:22,327 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:29:22,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:29:22,328 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:29:22,328 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 19:29:22,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:29:22,328 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 19:29:22,329 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:29:22,329 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:29:22,329 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:29:22,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:29:22,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:29:22,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:29:22,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:29:22,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:29:22,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:29:22,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:29:22,330 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 19:29:22,331 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 19:29:22,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:29:22,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:29:22,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:29:22,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:29:22,335 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 19:29:22,335 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 185c5ecec118867d41d6d4e251a2153dc547f1cc961cdbc2b790292b6debb75b [2024-10-24 19:29:22,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:29:22,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:29:22,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:29:22,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:29:22,612 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:29:22,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i [2024-10-24 19:29:24,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:29:24,493 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:29:24,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/mcslock.i [2024-10-24 19:29:24,533 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2777a04c1/92ca8cfc3ca84dd4b43a32a0923c92de/FLAGff0ab8ede [2024-10-24 19:29:24,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2777a04c1/92ca8cfc3ca84dd4b43a32a0923c92de [2024-10-24 19:29:24,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:29:24,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:29:24,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:29:24,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:29:24,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:29:24,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:29:24" (1/1) ... [2024-10-24 19:29:24,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@771bb648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:24, skipping insertion in model container [2024-10-24 19:29:24,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:29:24" (1/1) ... [2024-10-24 19:29:24,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:29:26,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:29:26,065 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 19:29:26,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:29:26,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:29:26,224 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:29:26,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-10-24 19:29:26,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-10-24 19:29:26,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-10-24 19:29:26,308 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-10-24 19:29:26,308 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-10-24 19:29:26,309 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-10-24 19:29:26,309 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-10-24 19:29:26,309 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-10-24 19:29:26,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-10-24 19:29:26,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-10-24 19:29:26,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-10-24 19:29:26,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-10-24 19:29:26,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-10-24 19:29:26,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-10-24 19:29:26,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-10-24 19:29:26,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-10-24 19:29:26,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-10-24 19:29:26,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-10-24 19:29:26,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-10-24 19:29:26,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-10-24 19:29:26,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-10-24 19:29:26,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-10-24 19:29:26,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-10-24 19:29:26,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-10-24 19:29:26,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-10-24 19:29:26,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-10-24 19:29:26,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-10-24 19:29:26,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-10-24 19:29:26,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-10-24 19:29:26,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-10-24 19:29:26,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-10-24 19:29:26,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-10-24 19:29:26,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-10-24 19:29:26,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-10-24 19:29:26,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-10-24 19:29:26,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-10-24 19:29:26,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-10-24 19:29:26,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-10-24 19:29:26,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-10-24 19:29:26,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-10-24 19:29:26,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-10-24 19:29:26,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-10-24 19:29:26,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-10-24 19:29:26,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-10-24 19:29:26,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-10-24 19:29:26,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-10-24 19:29:26,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-10-24 19:29:26,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-10-24 19:29:26,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-10-24 19:29:26,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-10-24 19:29:26,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-10-24 19:29:26,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-10-24 19:29:26,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-10-24 19:29:26,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-10-24 19:29:26,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-10-24 19:29:26,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-10-24 19:29:26,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-10-24 19:29:26,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-10-24 19:29:26,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-10-24 19:29:26,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-10-24 19:29:26,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-10-24 19:29:26,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-10-24 19:29:26,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-10-24 19:29:26,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-10-24 19:29:26,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-10-24 19:29:26,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-10-24 19:29:26,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-10-24 19:29:26,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-10-24 19:29:26,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-10-24 19:29:26,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-10-24 19:29:26,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-10-24 19:29:26,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-10-24 19:29:26,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-10-24 19:29:26,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-10-24 19:29:26,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-10-24 19:29:26,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-10-24 19:29:26,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-10-24 19:29:26,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-10-24 19:29:26,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-10-24 19:29:26,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-10-24 19:29:26,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-10-24 19:29:26,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-10-24 19:29:26,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-10-24 19:29:26,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-10-24 19:29:26,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-10-24 19:29:26,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-10-24 19:29:26,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-10-24 19:29:26,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-10-24 19:29:26,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-10-24 19:29:26,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-10-24 19:29:26,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-10-24 19:29:26,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-10-24 19:29:26,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-10-24 19:29:26,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-10-24 19:29:26,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-10-24 19:29:26,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-10-24 19:29:26,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-10-24 19:29:26,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-10-24 19:29:26,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-10-24 19:29:26,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-10-24 19:29:26,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:29:26,669 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:29:26,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26 WrapperNode [2024-10-24 19:29:26,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:29:26,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:29:26,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:29:26,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:29:26,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,815 INFO L138 Inliner]: procedures = 927, calls = 923, calls flagged for inlining = 830, calls inlined = 57, statements flattened = 514 [2024-10-24 19:29:26,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:29:26,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:29:26,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:29:26,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:29:26,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,863 INFO L175 MemorySlicer]: Split 23 memory accesses to 4 slices as follows [2, 3, 2, 16]. 70 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 0, 6]. The 8 writes are split as follows [0, 1, 1, 6]. [2024-10-24 19:29:26,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:29:26,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:29:26,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:29:26,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:29:26,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (1/1) ... [2024-10-24 19:29:26,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:29:26,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:29:26,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:29:26,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:29:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:29:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 19:29:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 19:29:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 19:29:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 19:29:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:29:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:29:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-10-24 19:29:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-10-24 19:29:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 19:29:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 19:29:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 19:29:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 19:29:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 19:29:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 19:29:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 19:29:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 19:29:26,973 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:29:27,128 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:29:27,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:29:27,834 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:29:27,835 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:29:28,135 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:29:28,136 INFO L314 CfgBuilder]: Removed 84 assume(true) statements. [2024-10-24 19:29:28,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:29:28 BoogieIcfgContainer [2024-10-24 19:29:28,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:29:28,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:29:28,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:29:28,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:29:28,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:29:24" (1/3) ... [2024-10-24 19:29:28,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a3efb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:29:28, skipping insertion in model container [2024-10-24 19:29:28,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:26" (2/3) ... [2024-10-24 19:29:28,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a3efb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:29:28, skipping insertion in model container [2024-10-24 19:29:28,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:29:28" (3/3) ... [2024-10-24 19:29:28,148 INFO L112 eAbstractionObserver]: Analyzing ICFG mcslock.i [2024-10-24 19:29:28,165 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:29:28,165 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-10-24 19:29:28,165 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:29:28,298 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 19:29:28,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 255 transitions, 517 flow [2024-10-24 19:29:28,435 INFO L124 PetriNetUnfolderBase]: 97/299 cut-off events. [2024-10-24 19:29:28,435 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 19:29:28,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 299 events. 97/299 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1052 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 239. Up to 6 conditions per place. [2024-10-24 19:29:28,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 255 transitions, 517 flow [2024-10-24 19:29:28,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 255 transitions, 517 flow [2024-10-24 19:29:28,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:29:28,483 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;@49ebb954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:29:28,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-10-24 19:29:28,488 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:29:28,488 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-10-24 19:29:28,488 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:29:28,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:29:28,490 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 19:29:28,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 57 more)] === [2024-10-24 19:29:28,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:29:28,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1567012263, now seen corresponding path program 1 times [2024-10-24 19:29:28,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:29:28,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430259985] [2024-10-24 19:29:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:29:28,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:28,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:29:28,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:29:28,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 19:29:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:29:28,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 19:29:28,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:29:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:29:28,636 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:29:28,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:29:28,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430259985] [2024-10-24 19:29:28,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430259985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:29:28,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:29:28,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:29:28,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373168387] [2024-10-24 19:29:28,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:29:28,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 19:29:28,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:29:28,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 19:29:28,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 19:29:28,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 255 [2024-10-24 19:29:28,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 255 transitions, 517 flow. Second operand has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:28,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:29:28,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 255 [2024-10-24 19:29:28,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:29:29,380 INFO L124 PetriNetUnfolderBase]: 747/1836 cut-off events. [2024-10-24 19:29:29,380 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-10-24 19:29:29,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3361 conditions, 1836 events. 747/1836 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12131 event pairs, 680 based on Foata normal form. 939/2372 useless extension candidates. Maximal degree in co-relation 3297. Up to 1520 conditions per place. [2024-10-24 19:29:29,390 INFO L140 encePairwiseOnDemand]: 203/255 looper letters, 90 selfloop transitions, 0 changer transitions 0/138 dead transitions. [2024-10-24 19:29:29,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 138 transitions, 463 flow [2024-10-24 19:29:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 19:29:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 19:29:29,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 272 transitions. [2024-10-24 19:29:29,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-10-24 19:29:29,404 INFO L175 Difference]: Start difference. First operand has 174 places, 255 transitions, 517 flow. Second operand 2 states and 272 transitions. [2024-10-24 19:29:29,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 138 transitions, 463 flow [2024-10-24 19:29:29,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 138 transitions, 463 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 19:29:29,411 INFO L231 Difference]: Finished difference. Result has 135 places, 138 transitions, 283 flow [2024-10-24 19:29:29,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=283, PETRI_PLACES=135, PETRI_TRANSITIONS=138} [2024-10-24 19:29:29,417 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -39 predicate places. [2024-10-24 19:29:29,417 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 138 transitions, 283 flow [2024-10-24 19:29:29,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:29,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:29:29,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:29:29,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 19:29:29,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:29,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 57 more)] === [2024-10-24 19:29:29,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:29:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1547657819, now seen corresponding path program 1 times [2024-10-24 19:29:29,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:29:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037860932] [2024-10-24 19:29:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:29:29,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:29,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:29:29,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:29:29,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 19:29:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:29:29,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 19:29:29,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:29:29,779 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 [2024-10-24 19:29:29,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:29:29,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:29:29,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:29:29,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037860932] [2024-10-24 19:29:29,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037860932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:29:29,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:29:29,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:29:29,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820276521] [2024-10-24 19:29:29,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:29:29,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:29:29,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:29:29,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:29:29,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:29:29,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 255 [2024-10-24 19:29:29,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 138 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:29,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:29:29,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 255 [2024-10-24 19:29:29,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:29:30,376 INFO L124 PetriNetUnfolderBase]: 896/2176 cut-off events. [2024-10-24 19:29:30,378 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 19:29:30,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 2176 events. 896/2176 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14938 event pairs, 681 based on Foata normal form. 0/1741 useless extension candidates. Maximal degree in co-relation 3989. Up to 1519 conditions per place. [2024-10-24 19:29:30,387 INFO L140 encePairwiseOnDemand]: 251/255 looper letters, 164 selfloop transitions, 2 changer transitions 0/210 dead transitions. [2024-10-24 19:29:30,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 210 transitions, 759 flow [2024-10-24 19:29:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:29:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:29:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-10-24 19:29:30,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4588235294117647 [2024-10-24 19:29:30,391 INFO L175 Difference]: Start difference. First operand has 135 places, 138 transitions, 283 flow. Second operand 3 states and 351 transitions. [2024-10-24 19:29:30,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 210 transitions, 759 flow [2024-10-24 19:29:30,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 210 transitions, 759 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 19:29:30,396 INFO L231 Difference]: Finished difference. Result has 135 places, 136 transitions, 283 flow [2024-10-24 19:29:30,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=135, PETRI_TRANSITIONS=136} [2024-10-24 19:29:30,397 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -39 predicate places. [2024-10-24 19:29:30,397 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 136 transitions, 283 flow [2024-10-24 19:29:30,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:30,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:29:30,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:29:30,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 19:29:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:30,599 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 57 more)] === [2024-10-24 19:29:30,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:29:30,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1547657820, now seen corresponding path program 1 times [2024-10-24 19:29:30,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:29:30,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866959829] [2024-10-24 19:29:30,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:29:30,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:30,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:29:30,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:29:30,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 19:29:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:29:30,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:29:30,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:29:30,690 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 [2024-10-24 19:29:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:29:30,737 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:29:30,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:29:30,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866959829] [2024-10-24 19:29:30,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866959829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:29:30,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:29:30,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:29:30,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921636529] [2024-10-24 19:29:30,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:29:30,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:29:30,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:29:30,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:29:30,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:29:30,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 255 [2024-10-24 19:29:30,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 136 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:30,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:29:30,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 255 [2024-10-24 19:29:30,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:29:31,461 INFO L124 PetriNetUnfolderBase]: 830/2963 cut-off events. [2024-10-24 19:29:31,462 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-10-24 19:29:31,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4723 conditions, 2963 events. 830/2963 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 26340 event pairs, 8 based on Foata normal form. 1/2476 useless extension candidates. Maximal degree in co-relation 4718. Up to 1311 conditions per place. [2024-10-24 19:29:31,472 INFO L140 encePairwiseOnDemand]: 249/255 looper letters, 236 selfloop transitions, 4 changer transitions 0/285 dead transitions. [2024-10-24 19:29:31,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 285 transitions, 1061 flow [2024-10-24 19:29:31,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:29:31,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:29:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2024-10-24 19:29:31,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48823529411764705 [2024-10-24 19:29:31,474 INFO L175 Difference]: Start difference. First operand has 135 places, 136 transitions, 283 flow. Second operand 4 states and 498 transitions. [2024-10-24 19:29:31,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 285 transitions, 1061 flow [2024-10-24 19:29:31,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 285 transitions, 1057 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:29:31,483 INFO L231 Difference]: Finished difference. Result has 137 places, 136 transitions, 293 flow [2024-10-24 19:29:31,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=293, PETRI_PLACES=137, PETRI_TRANSITIONS=136} [2024-10-24 19:29:31,485 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -37 predicate places. [2024-10-24 19:29:31,485 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 136 transitions, 293 flow [2024-10-24 19:29:31,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:31,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:29:31,485 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:29:31,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-24 19:29:31,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:31,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 57 more)] === [2024-10-24 19:29:31,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:29:31,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1839375612, now seen corresponding path program 1 times [2024-10-24 19:29:31,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:29:31,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332369638] [2024-10-24 19:29:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:29:31,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:31,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:29:31,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:29:31,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 19:29:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:29:31,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 19:29:31,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:29:31,815 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 [2024-10-24 19:29:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:29:31,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:29:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:29:32,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:29:32,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332369638] [2024-10-24 19:29:32,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332369638] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:29:32,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 19:29:32,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2024-10-24 19:29:32,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941992220] [2024-10-24 19:29:32,039 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 19:29:32,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 19:29:32,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:29:32,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 19:29:32,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 19:29:32,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 255 [2024-10-24 19:29:32,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 136 transitions, 293 flow. Second operand has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:32,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:29:32,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 255 [2024-10-24 19:29:32,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:29:32,595 INFO L124 PetriNetUnfolderBase]: 230/610 cut-off events. [2024-10-24 19:29:32,595 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-10-24 19:29:32,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 610 events. 230/610 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3162 event pairs, 2 based on Foata normal form. 140/632 useless extension candidates. Maximal degree in co-relation 1266. Up to 434 conditions per place. [2024-10-24 19:29:32,598 INFO L140 encePairwiseOnDemand]: 250/255 looper letters, 154 selfloop transitions, 3 changer transitions 0/185 dead transitions. [2024-10-24 19:29:32,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 185 transitions, 696 flow [2024-10-24 19:29:32,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:29:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:29:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2024-10-24 19:29:32,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37176470588235294 [2024-10-24 19:29:32,600 INFO L175 Difference]: Start difference. First operand has 137 places, 136 transitions, 293 flow. Second operand 5 states and 474 transitions. [2024-10-24 19:29:32,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 185 transitions, 696 flow [2024-10-24 19:29:32,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 185 transitions, 688 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:29:32,603 INFO L231 Difference]: Finished difference. Result has 111 places, 109 transitions, 228 flow [2024-10-24 19:29:32,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=228, PETRI_PLACES=111, PETRI_TRANSITIONS=109} [2024-10-24 19:29:32,603 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -63 predicate places. [2024-10-24 19:29:32,604 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 109 transitions, 228 flow [2024-10-24 19:29:32,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:32,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:29:32,604 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:29:32,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-24 19:29:32,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:32,808 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 57 more)] === [2024-10-24 19:29:32,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:29:32,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1186067182, now seen corresponding path program 1 times [2024-10-24 19:29:32,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:29:32,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095936145] [2024-10-24 19:29:32,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:29:32,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:32,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:29:32,813 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:29:32,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 19:29:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:29:33,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:29:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:29:33,185 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 19:29:33,185 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:29:33,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2024-10-24 19:29:33,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 60 remaining) [2024-10-24 19:29:33,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 60 remaining) [2024-10-24 19:29:33,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 60 remaining) [2024-10-24 19:29:33,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (54 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (53 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (52 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 60 remaining) [2024-10-24 19:29:33,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 60 remaining) [2024-10-24 19:29:33,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 60 remaining) [2024-10-24 19:29:33,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 60 remaining) [2024-10-24 19:29:33,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 60 remaining) [2024-10-24 19:29:33,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 60 remaining) [2024-10-24 19:29:33,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 60 remaining) [2024-10-24 19:29:33,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 60 remaining) [2024-10-24 19:29:33,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONUNKNOWN (37 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONUNKNOWN (36 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 60 remaining) [2024-10-24 19:29:33,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 60 remaining) [2024-10-24 19:29:33,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 60 remaining) [2024-10-24 19:29:33,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONUNKNOWN (11 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONUNKNOWN (10 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 60 remaining) [2024-10-24 19:29:33,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 60 remaining) [2024-10-24 19:29:33,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 60 remaining) [2024-10-24 19:29:33,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-24 19:29:33,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:33,395 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-24 19:29:33,397 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 19:29:33,397 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 19:29:33,511 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 19:29:33,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 451 transitions, 918 flow [2024-10-24 19:29:33,565 INFO L124 PetriNetUnfolderBase]: 185/572 cut-off events. [2024-10-24 19:29:33,565 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 19:29:33,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 572 events. 185/572 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2704 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 464. Up to 12 conditions per place. [2024-10-24 19:29:33,578 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 451 transitions, 918 flow [2024-10-24 19:29:33,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 451 transitions, 918 flow [2024-10-24 19:29:33,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:29:33,594 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;@49ebb954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:29:33,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2024-10-24 19:29:33,595 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:29:33,595 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-10-24 19:29:33,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:29:33,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:29:33,596 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 19:29:33,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2024-10-24 19:29:33,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:29:33,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1997403818, now seen corresponding path program 1 times [2024-10-24 19:29:33,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:29:33,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884101105] [2024-10-24 19:29:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:29:33,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:33,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:29:33,599 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:29:33,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-24 19:29:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:29:33,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 19:29:33,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:29:33,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:29:33,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:29:33,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:29:33,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884101105] [2024-10-24 19:29:33,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884101105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:29:33,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:29:33,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:29:33,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129666074] [2024-10-24 19:29:33,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:29:33,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 19:29:33,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:29:33,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 19:29:33,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 19:29:33,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 451 [2024-10-24 19:29:33,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 451 transitions, 918 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:33,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:29:33,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 451 [2024-10-24 19:29:33,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:29:48,972 INFO L124 PetriNetUnfolderBase]: 110520/180867 cut-off events. [2024-10-24 19:29:48,972 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2024-10-24 19:29:49,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346194 conditions, 180867 events. 110520/180867 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 4542. Compared 1710793 event pairs, 101128 based on Foata normal form. 83101/216309 useless extension candidates. Maximal degree in co-relation 341996. Up to 164975 conditions per place. [2024-10-24 19:29:49,842 INFO L140 encePairwiseOnDemand]: 365/451 looper letters, 166 selfloop transitions, 0 changer transitions 0/237 dead transitions. [2024-10-24 19:29:49,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 237 transitions, 822 flow [2024-10-24 19:29:49,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 19:29:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 19:29:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 462 transitions. [2024-10-24 19:29:49,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5121951219512195 [2024-10-24 19:29:49,844 INFO L175 Difference]: Start difference. First operand has 306 places, 451 transitions, 918 flow. Second operand 2 states and 462 transitions. [2024-10-24 19:29:49,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 237 transitions, 822 flow [2024-10-24 19:29:49,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 237 transitions, 822 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 19:29:49,852 INFO L231 Difference]: Finished difference. Result has 229 places, 237 transitions, 490 flow [2024-10-24 19:29:49,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=490, PETRI_PLACES=229, PETRI_TRANSITIONS=237} [2024-10-24 19:29:49,857 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -77 predicate places. [2024-10-24 19:29:49,857 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 237 transitions, 490 flow [2024-10-24 19:29:49,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:49,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:29:49,857 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:29:49,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-10-24 19:29:50,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:50,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 83 more)] === [2024-10-24 19:29:50,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:29:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash -547601762, now seen corresponding path program 1 times [2024-10-24 19:29:50,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:29:50,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575231312] [2024-10-24 19:29:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:29:50,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:29:50,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:29:50,062 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:29:50,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-24 19:29:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:29:50,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 19:29:50,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:29:50,174 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 [2024-10-24 19:29:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:29:50,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:29:50,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:29:50,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575231312] [2024-10-24 19:29:50,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575231312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:29:50,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:29:50,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:29:50,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573533537] [2024-10-24 19:29:50,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:29:50,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:29:50,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:29:50,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:29:50,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:29:50,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 451 [2024-10-24 19:29:50,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 237 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:29:50,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:29:50,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 451 [2024-10-24 19:29:50,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand