./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:30:57,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:30:57,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 06:30:57,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:30:57,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:30:58,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:30:58,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:30:58,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:30:58,009 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:30:58,009 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:30:58,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:30:58,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:30:58,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:30:58,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:30:58,010 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:30:58,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:30:58,010 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:30:58,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:30:58,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:30:58,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:30:58,011 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:30:58,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:30:58,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:30:58,012 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2025-02-08 06:30:58,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:30:58,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:30:58,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:30:58,269 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:30:58,269 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:30:58,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-02-08 06:30:59,432 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/36d32ebeb/762bdaa0eb5b4bbca313cf75eefe8d78/FLAGc11f7815d [2025-02-08 06:30:59,754 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:30:59,757 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-02-08 06:30:59,771 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/36d32ebeb/762bdaa0eb5b4bbca313cf75eefe8d78/FLAGc11f7815d [2025-02-08 06:30:59,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/36d32ebeb/762bdaa0eb5b4bbca313cf75eefe8d78 [2025-02-08 06:30:59,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:30:59,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:30:59,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:30:59,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:30:59,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:30:59,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:30:59" (1/1) ... [2025-02-08 06:30:59,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fed067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:30:59, skipping insertion in model container [2025-02-08 06:30:59,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:30:59" (1/1) ... [2025-02-08 06:30:59,835 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:31:00,048 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:00,086 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:00,087 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:00,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:31:00,101 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) [2025-02-08 06:31:00,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c011d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:00, skipping insertion in model container [2025-02-08 06:31:00,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:31:00,103 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 06:31:00,104 INFO L158 Benchmark]: Toolchain (without parser) took 303.19ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 91.4MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:31:00,105 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:31:00,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.43ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 91.4MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:31:00,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.43ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 91.4MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 607]: 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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:31:01,899 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:31:01,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 06:31:01,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:31:01,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:31:01,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:31:02,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:31:02,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:31:02,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:31:02,001 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:31:02,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:31:02,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:31:02,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:31:02,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:31:02,002 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:31:02,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:31:02,003 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 06:31:02,004 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 06:31:02,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:31:02,004 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:31:02,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:31:02,004 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:31:02,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:31:02,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:31:02,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:31:02,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:31:02,005 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2025-02-08 06:31:02,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:31:02,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:31:02,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:31:02,263 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:31:02,263 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:31:02,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-02-08 06:31:03,460 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b1be58ee9/988c562f51464c9ba31eb8ac1bca3d20/FLAGb7af35b64 [2025-02-08 06:31:03,725 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:31:03,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-02-08 06:31:03,740 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b1be58ee9/988c562f51464c9ba31eb8ac1bca3d20/FLAGb7af35b64 [2025-02-08 06:31:03,755 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b1be58ee9/988c562f51464c9ba31eb8ac1bca3d20 [2025-02-08 06:31:03,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:31:03,758 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:31:03,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:31:03,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:31:03,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:31:03,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:31:03" (1/1) ... [2025-02-08 06:31:03,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab8f81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:03, skipping insertion in model container [2025-02-08 06:31:03,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:31:03" (1/1) ... [2025-02-08 06:31:03,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:31:03,985 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:04,026 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:04,028 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:04,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:31:04,047 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 06:31:04,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:31:04,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:04,111 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:04,111 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:31:04,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:31:04,121 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:31:04,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:31:04,213 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:31:04,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04 WrapperNode [2025-02-08 06:31:04,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:31:04,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:31:04,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:31:04,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:31:04,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,257 INFO L138 Inliner]: procedures = 165, calls = 70, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 22 [2025-02-08 06:31:04,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:31:04,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:31:04,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:31:04,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:31:04,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,283 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [2, 0]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 0 writes are split as follows [0, 0]. [2025-02-08 06:31:04,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,289 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,296 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:31:04,300 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:31:04,300 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:31:04,300 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:31:04,301 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (1/1) ... [2025-02-08 06:31:04,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:31:04,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:04,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 06:31:04,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 06:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-02-08 06:31:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-02-08 06:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 06:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:31:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 06:31:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 06:31:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:31:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:31:04,438 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:31:04,440 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:31:04,487 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc #t~malloc12.base, #t~malloc12.offset; [2025-02-08 06:31:04,525 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-02-08 06:31:04,525 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:31:04,534 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:31:04,537 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 06:31:04,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:31:04 BoogieIcfgContainer [2025-02-08 06:31:04,538 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:31:04,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:31:04,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:31:04,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:31:04,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:31:03" (1/3) ... [2025-02-08 06:31:04,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555fffd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:31:04, skipping insertion in model container [2025-02-08 06:31:04,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:31:04" (2/3) ... [2025-02-08 06:31:04,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555fffd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:31:04, skipping insertion in model container [2025-02-08 06:31:04,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:31:04" (3/3) ... [2025-02-08 06:31:04,549 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2025-02-08 06:31:04,569 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:31:04,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test4-1.i that has 2 procedures, 21 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 06:31:04,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:31:04,626 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;@3a7a49bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:31:04,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 06:31:04,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 06:31:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 06:31:04,641 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:31:04,641 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:04,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-08 06:31:04,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:31:04,648 INFO L85 PathProgramCache]: Analyzing trace with hash 97636502, now seen corresponding path program 1 times [2025-02-08 06:31:04,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:31:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686573417] [2025-02-08 06:31:04,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:31:04,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:04,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:04,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:31:04,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 06:31:04,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 06:31:04,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 06:31:04,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:04,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:31:04,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:31:04,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:31:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:31:04,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:31:04,822 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:31:04,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686573417] [2025-02-08 06:31:04,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686573417] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:31:04,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:31:04,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 06:31:04,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993714567] [2025-02-08 06:31:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:31:04,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 06:31:04,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:31:04,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 06:31:04,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:04,840 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 06:31:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:31:04,863 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2025-02-08 06:31:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:31:04,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2025-02-08 06:31:04,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:31:04,873 INFO L225 Difference]: With dead ends: 25 [2025-02-08 06:31:04,873 INFO L226 Difference]: Without dead ends: 23 [2025-02-08 06:31:04,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:04,877 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:31:04,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:31:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-02-08 06:31:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-02-08 06:31:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:31:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2025-02-08 06:31:04,918 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2025-02-08 06:31:04,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:31:04,919 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2025-02-08 06:31:04,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 06:31:04,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2025-02-08 06:31:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 06:31:04,921 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:31:04,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:04,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 06:31:05,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:05,126 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-08 06:31:05,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:31:05,127 INFO L85 PathProgramCache]: Analyzing trace with hash 985140183, now seen corresponding path program 1 times [2025-02-08 06:31:05,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:31:05,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472372412] [2025-02-08 06:31:05,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:31:05,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:05,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:05,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:31:05,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 06:31:05,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 06:31:05,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 06:31:05,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:05,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:31:05,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:31:05,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:31:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:31:05,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:31:05,196 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:31:05,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472372412] [2025-02-08 06:31:05,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472372412] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:31:05,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:31:05,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:31:05,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741290888] [2025-02-08 06:31:05,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:31:05,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:31:05,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:31:05,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:31:05,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:31:05,198 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 06:31:05,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:31:05,230 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2025-02-08 06:31:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:31:05,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2025-02-08 06:31:05,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:31:05,230 INFO L225 Difference]: With dead ends: 33 [2025-02-08 06:31:05,231 INFO L226 Difference]: Without dead ends: 31 [2025-02-08 06:31:05,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:31:05,231 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:31:05,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:31:05,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-02-08 06:31:05,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 19. [2025-02-08 06:31:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 06:31:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-02-08 06:31:05,234 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2025-02-08 06:31:05,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:31:05,234 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-02-08 06:31:05,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 06:31:05,234 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-02-08 06:31:05,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 06:31:05,234 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:31:05,235 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:05,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 06:31:05,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:05,439 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-08 06:31:05,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:31:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1856692144, now seen corresponding path program 1 times [2025-02-08 06:31:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:31:05,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126856605] [2025-02-08 06:31:05,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:31:05,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:05,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:05,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:31:05,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 06:31:05,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 06:31:05,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 06:31:05,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:05,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:31:05,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:31:05,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:31:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:31:05,542 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:31:05,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:31:05,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126856605] [2025-02-08 06:31:05,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126856605] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:31:05,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:31:05,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:31:05,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962318830] [2025-02-08 06:31:05,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:31:05,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 06:31:05,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:31:05,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 06:31:05,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:05,543 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:31:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:31:05,567 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2025-02-08 06:31:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:31:05,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-02-08 06:31:05,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:31:05,568 INFO L225 Difference]: With dead ends: 18 [2025-02-08 06:31:05,568 INFO L226 Difference]: Without dead ends: 18 [2025-02-08 06:31:05,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:05,568 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:31:05,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:31:05,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-02-08 06:31:05,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-02-08 06:31:05,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 06:31:05,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2025-02-08 06:31:05,573 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2025-02-08 06:31:05,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:31:05,573 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2025-02-08 06:31:05,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:31:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2025-02-08 06:31:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-08 06:31:05,575 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:31:05,575 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:05,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 06:31:05,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:05,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-08 06:31:05,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:31:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1722881636, now seen corresponding path program 1 times [2025-02-08 06:31:05,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:31:05,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315707690] [2025-02-08 06:31:05,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:31:05,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:05,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:05,784 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:31:05,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 06:31:05,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 06:31:05,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 06:31:05,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:05,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:31:05,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:31:05,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:31:05,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:31:05,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:31:05,880 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:31:05,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315707690] [2025-02-08 06:31:05,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315707690] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:31:05,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:31:05,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:31:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152676591] [2025-02-08 06:31:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:31:05,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 06:31:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:31:05,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 06:31:05,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:05,881 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:31:05,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:31:05,915 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2025-02-08 06:31:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:31:05,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2025-02-08 06:31:05,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:31:05,916 INFO L225 Difference]: With dead ends: 23 [2025-02-08 06:31:05,916 INFO L226 Difference]: Without dead ends: 23 [2025-02-08 06:31:05,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:05,917 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:31:05,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 43 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:31:05,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-02-08 06:31:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-02-08 06:31:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:31:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2025-02-08 06:31:05,919 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2025-02-08 06:31:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:31:05,919 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2025-02-08 06:31:05,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:31:05,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2025-02-08 06:31:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-08 06:31:05,924 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:31:05,924 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:05,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 06:31:06,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:06,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-08 06:31:06,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:31:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1694252485, now seen corresponding path program 1 times [2025-02-08 06:31:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:31:06,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728392481] [2025-02-08 06:31:06,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:31:06,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:06,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:06,131 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:31:06,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 06:31:06,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 06:31:06,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 06:31:06,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:06,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:31:06,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 06:31:06,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:31:06,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:31:06,242 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:31:06,242 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:31:06,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728392481] [2025-02-08 06:31:06,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728392481] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:31:06,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:31:06,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 06:31:06,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822981134] [2025-02-08 06:31:06,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:31:06,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 06:31:06,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:31:06,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 06:31:06,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 06:31:06,243 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 06:31:06,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:31:06,286 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2025-02-08 06:31:06,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 06:31:06,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2025-02-08 06:31:06,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:31:06,287 INFO L225 Difference]: With dead ends: 23 [2025-02-08 06:31:06,287 INFO L226 Difference]: Without dead ends: 23 [2025-02-08 06:31:06,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 06:31:06,288 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 10 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:31:06,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 50 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:31:06,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-02-08 06:31:06,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-02-08 06:31:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:31:06,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2025-02-08 06:31:06,291 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2025-02-08 06:31:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:31:06,291 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2025-02-08 06:31:06,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 06:31:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2025-02-08 06:31:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-02-08 06:31:06,291 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:31:06,291 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:06,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 06:31:06,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:06,492 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-08 06:31:06,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:31:06,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1869723186, now seen corresponding path program 1 times [2025-02-08 06:31:06,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:31:06,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018938217] [2025-02-08 06:31:06,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:31:06,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:06,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:06,495 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:31:06,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 06:31:06,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 06:31:06,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 06:31:06,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:06,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:31:06,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 06:31:06,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:31:06,617 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 [2025-02-08 06:31:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:31:06,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:31:06,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:31:06,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018938217] [2025-02-08 06:31:06,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018938217] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:31:06,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:31:06,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:31:06,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691963963] [2025-02-08 06:31:06,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:31:06,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 06:31:06,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:31:06,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 06:31:06,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:06,710 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:31:06,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:31:06,768 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2025-02-08 06:31:06,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:31:06,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-02-08 06:31:06,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:31:06,769 INFO L225 Difference]: With dead ends: 22 [2025-02-08 06:31:06,769 INFO L226 Difference]: Without dead ends: 22 [2025-02-08 06:31:06,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:31:06,770 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:31:06,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:31:06,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-08 06:31:06,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2025-02-08 06:31:06,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 06:31:06,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2025-02-08 06:31:06,772 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 17 [2025-02-08 06:31:06,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:31:06,772 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2025-02-08 06:31:06,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:31:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2025-02-08 06:31:06,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-08 06:31:06,772 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:31:06,772 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:06,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 06:31:06,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:06,980 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-08 06:31:06,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:31:06,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1507652756, now seen corresponding path program 1 times [2025-02-08 06:31:06,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:31:06,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877839161] [2025-02-08 06:31:06,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:31:06,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:06,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:31:06,983 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:31:06,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 06:31:07,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 06:31:07,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 06:31:07,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:07,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 06:31:07,049 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 06:31:07,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 06:31:07,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 06:31:07,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:31:07,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 06:31:07,117 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-08 06:31:07,122 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 06:31:07,124 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-08 06:31:07,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2025-02-08 06:31:07,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2025-02-08 06:31:07,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2025-02-08 06:31:07,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 06:31:07,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:31:07,333 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:31:07,353 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 06:31:07,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 06:31:07 BoogieIcfgContainer [2025-02-08 06:31:07,359 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 06:31:07,360 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 06:31:07,360 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 06:31:07,360 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 06:31:07,362 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:31:04" (3/4) ... [2025-02-08 06:31:07,368 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 06:31:07,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 06:31:07,369 INFO L158 Benchmark]: Toolchain (without parser) took 3610.98ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 75.8MB in the end (delta: 11.8MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2025-02-08 06:31:07,369 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:31:07,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.46ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 60.5MB in the end (delta: 27.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:31:07,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.59ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 58.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 06:31:07,370 INFO L158 Benchmark]: Boogie Preprocessor took 40.72ms. Allocated memory is still 117.4MB. Free memory was 58.7MB in the beginning and 57.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:31:07,370 INFO L158 Benchmark]: IcfgBuilder took 238.00ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 44.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 06:31:07,370 INFO L158 Benchmark]: TraceAbstraction took 2820.09ms. Allocated memory is still 117.4MB. Free memory was 43.6MB in the beginning and 75.8MB in the end (delta: -32.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:31:07,370 INFO L158 Benchmark]: Witness Printer took 8.74ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 19.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:31:07,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.46ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 60.5MB in the end (delta: 27.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.59ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 58.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.72ms. Allocated memory is still 117.4MB. Free memory was 58.7MB in the beginning and 57.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 238.00ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 44.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2820.09ms. Allocated memory is still 117.4MB. Free memory was 43.6MB in the beginning and 75.8MB in the end (delta: -32.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.74ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 19.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L765] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={1:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) VAL [ldv_global_msg_list={1:0}] [L760] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={1:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={1:0}] [L761] free(q) VAL [ldv_global_msg_list={1:0}] [L761] free(q) [L765] RET entry_point() - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 333 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 118 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 1 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-08 06:31:07,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample