./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc 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_test20-2.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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 10:25:17,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:25:17,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 10:25:17,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:25:17,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:25:17,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:25:17,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:25:17,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:25:17,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:25:17,881 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:25:17,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:25:17,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:25:17,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:25:17,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:25:17,881 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:25:17,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:25:17,882 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:25:17,883 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:25:17,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:25:17,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 10:25:17,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 10:25:17,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:25:17,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:25:17,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:25:17,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:25:17,884 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 -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2025-02-06 10:25:18,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:25:18,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:25:18,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:25:18,066 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:25:18,066 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:25:18,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2025-02-06 10:25:19,208 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec0093c09/06824e4370eb44a8a0252ae800016eb7/FLAG446cd53cf [2025-02-06 10:25:19,556 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:25:19,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2025-02-06 10:25:19,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec0093c09/06824e4370eb44a8a0252ae800016eb7/FLAG446cd53cf [2025-02-06 10:25:19,773 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec0093c09/06824e4370eb44a8a0252ae800016eb7 [2025-02-06 10:25:19,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:25:19,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:25:19,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:25:19,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:25:19,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:25:19,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:25:19" (1/1) ... [2025-02-06 10:25:19,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378fba94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:19, skipping insertion in model container [2025-02-06 10:25:19,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:25:19" (1/1) ... [2025-02-06 10:25:19,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:25:20,061 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:25:20,095 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:25:20,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:25:20,114 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) [2025-02-06 10:25:20,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@570006cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:20, skipping insertion in model container [2025-02-06 10:25:20,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:25:20,115 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 10:25:20,117 INFO L158 Benchmark]: Toolchain (without parser) took 338.28ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 108.6MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:25:20,118 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:25:20,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.55ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 108.6MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:25:20,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.55ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 108.6MB in the end (delta: 14.2MB). 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_test20-2.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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 10:25:21,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:25:22,026 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 10:25:22,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:25:22,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:25:22,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:25:22,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:25:22,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:25:22,058 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:25:22,058 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:25:22,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:25:22,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:25:22,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:25:22,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:25:22,059 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:25:22,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:25:22,059 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 10:25:22,060 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 10:25:22,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:25:22,061 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:25:22,061 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:25:22,061 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:25:22,061 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:25:22,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:25:22,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:25:22,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:25:22,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:25:22,063 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 -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2025-02-06 10:25:22,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:25:22,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:25:22,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:25:22,338 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:25:22,338 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:25:22,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2025-02-06 10:25:23,540 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd291b9b1/8200b7e4009c4e7da7d8de1daf73446e/FLAG602b4399e [2025-02-06 10:25:23,789 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:25:23,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2025-02-06 10:25:23,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd291b9b1/8200b7e4009c4e7da7d8de1daf73446e/FLAG602b4399e [2025-02-06 10:25:24,104 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fd291b9b1/8200b7e4009c4e7da7d8de1daf73446e [2025-02-06 10:25:24,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:25:24,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:25:24,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:25:24,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:25:24,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:25:24,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72578624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24, skipping insertion in model container [2025-02-06 10:25:24,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,136 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:25:24,365 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:25:24,407 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:25:24,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:25:24,433 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 10:25:24,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:25:24,468 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:25:24,483 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:25:24,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:25:24,499 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 10:25:24,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:25:24,583 INFO L204 MainTranslator]: Completed translation [2025-02-06 10:25:24,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24 WrapperNode [2025-02-06 10:25:24,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:25:24,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 10:25:24,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 10:25:24,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 10:25:24,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,626 INFO L138 Inliner]: procedures = 170, calls = 73, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 37 [2025-02-06 10:25:24,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 10:25:24,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 10:25:24,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 10:25:24,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 10:25:24,634 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,653 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]. [2025-02-06 10:25:24,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,661 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 10:25:24,668 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 10:25:24,668 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 10:25:24,668 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 10:25:24,671 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (1/1) ... [2025-02-06 10:25:24,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:25:24,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:24,693 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) [2025-02-06 10:25:24,695 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 [2025-02-06 10:25:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-02-06 10:25:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-02-06 10:25:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 10:25:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 10:25:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 10:25:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 10:25:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 10:25:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 10:25:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 10:25:24,796 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 10:25:24,797 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 10:25:24,830 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc #t~malloc12.base, #t~malloc12.offset; [2025-02-06 10:25:24,907 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2025-02-06 10:25:24,907 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 10:25:24,914 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 10:25:24,914 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 10:25:24,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:25:24 BoogieIcfgContainer [2025-02-06 10:25:24,914 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 10:25:24,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 10:25:24,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 10:25:24,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 10:25:24,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 10:25:24" (1/3) ... [2025-02-06 10:25:24,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114358ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:25:24, skipping insertion in model container [2025-02-06 10:25:24,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:25:24" (2/3) ... [2025-02-06 10:25:24,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114358ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:25:24, skipping insertion in model container [2025-02-06 10:25:24,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:25:24" (3/3) ... [2025-02-06 10:25:24,921 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2025-02-06 10:25:24,931 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 10:25:24,932 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test20-2.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-06 10:25:24,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 10:25:24,966 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;@7127062c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 10:25:24,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 10:25:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 22 states have internal predecessors, (25), 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) [2025-02-06 10:25:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 10:25:24,973 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:24,974 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:24,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-06 10:25:24,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1539420783, now seen corresponding path program 1 times [2025-02-06 10:25:24,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:24,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998755642] [2025-02-06 10:25:24,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:24,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:24,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:24,987 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) [2025-02-06 10:25:24,992 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 [2025-02-06 10:25:25,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 10:25:25,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 10:25:25,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:25,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:25,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:25:25,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:25,182 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:25,182 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:25,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998755642] [2025-02-06 10:25:25,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998755642] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:25,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:25,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 10:25:25,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293824275] [2025-02-06 10:25:25,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:25,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:25:25,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:25,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:25:25,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:25:25,208 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 22 states have internal predecessors, (25), 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) Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-06 10:25:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:25,230 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2025-02-06 10:25:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:25:25,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2025-02-06 10:25:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:25,235 INFO L225 Difference]: With dead ends: 29 [2025-02-06 10:25:25,236 INFO L226 Difference]: Without dead ends: 27 [2025-02-06 10:25:25,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:25:25,239 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 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 [2025-02-06 10:25:25,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:25:25,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-02-06 10:25:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-02-06 10:25:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 23 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:25:25,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2025-02-06 10:25:25,259 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 13 [2025-02-06 10:25:25,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:25,259 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2025-02-06 10:25:25,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-06 10:25:25,259 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2025-02-06 10:25:25,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 10:25:25,260 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:25,260 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:25,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 10:25:25,464 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 [2025-02-06 10:25:25,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-06 10:25:25,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash -268033680, now seen corresponding path program 1 times [2025-02-06 10:25:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:25,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307244174] [2025-02-06 10:25:25,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:25,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:25,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:25,468 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) [2025-02-06 10:25:25,469 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 [2025-02-06 10:25:25,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 10:25:25,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 10:25:25,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:25,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:25,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 10:25:25,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:25,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:25,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:25,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307244174] [2025-02-06 10:25:25,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307244174] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:25,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:25,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 10:25:25,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210132565] [2025-02-06 10:25:25,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:25,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:25:25,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:25,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:25:25,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:25:25,620 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-06 10:25:25,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:25,656 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2025-02-06 10:25:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:25:25,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2025-02-06 10:25:25,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:25,657 INFO L225 Difference]: With dead ends: 31 [2025-02-06 10:25:25,657 INFO L226 Difference]: Without dead ends: 31 [2025-02-06 10:25:25,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 10:25:25,658 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:25,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 74 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:25:25,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-02-06 10:25:25,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2025-02-06 10:25:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:25:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2025-02-06 10:25:25,661 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 13 [2025-02-06 10:25:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:25,661 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2025-02-06 10:25:25,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-02-06 10:25:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2025-02-06 10:25:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 10:25:25,661 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:25,662 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:25,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 10:25:25,866 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 [2025-02-06 10:25:25,866 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)] === [2025-02-06 10:25:25,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:25,867 INFO L85 PathProgramCache]: Analyzing trace with hash 449759936, now seen corresponding path program 1 times [2025-02-06 10:25:25,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:25,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105344862] [2025-02-06 10:25:25,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:25,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:25,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:25,869 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) [2025-02-06 10:25:25,870 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 [2025-02-06 10:25:25,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 10:25:25,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 10:25:25,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:25,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:25,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 10:25:25,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:25,979 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:25,979 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:25,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105344862] [2025-02-06 10:25:25,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105344862] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:25,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:25,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 10:25:25,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675780771] [2025-02-06 10:25:25,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:25,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 10:25:25,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:25,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 10:25:25,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 10:25:25,980 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2025-02-06 10:25:26,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:26,044 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2025-02-06 10:25:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 10:25:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 14 [2025-02-06 10:25:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:26,044 INFO L225 Difference]: With dead ends: 30 [2025-02-06 10:25:26,045 INFO L226 Difference]: Without dead ends: 30 [2025-02-06 10:25:26,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-02-06 10:25:26,045 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 8 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:26,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 132 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:25:26,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-02-06 10:25:26,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2025-02-06 10:25:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:25:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2025-02-06 10:25:26,047 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 14 [2025-02-06 10:25:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:26,048 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2025-02-06 10:25:26,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2025-02-06 10:25:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2025-02-06 10:25:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 10:25:26,048 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:26,048 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:26,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 10:25:26,249 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 [2025-02-06 10:25:26,249 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)] === [2025-02-06 10:25:26,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:26,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1057656109, now seen corresponding path program 1 times [2025-02-06 10:25:26,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:26,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934035001] [2025-02-06 10:25:26,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:26,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:26,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:26,255 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) [2025-02-06 10:25:26,256 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 [2025-02-06 10:25:26,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 10:25:26,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 10:25:26,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:26,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:26,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 10:25:26,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:26,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:26,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:26,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:26,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934035001] [2025-02-06 10:25:26,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934035001] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:26,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:26,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 10:25:26,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748542316] [2025-02-06 10:25:26,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:26,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 10:25:26,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:26,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 10:25:26,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 10:25:26,393 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2025-02-06 10:25:26,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:26,579 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2025-02-06 10:25:26,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 10:25:26,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 15 [2025-02-06 10:25:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:26,583 INFO L225 Difference]: With dead ends: 28 [2025-02-06 10:25:26,583 INFO L226 Difference]: Without dead ends: 28 [2025-02-06 10:25:26,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-02-06 10:25:26,584 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:26,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 59 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:25:26,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-02-06 10:25:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-02-06 10:25:26,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:25:26,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2025-02-06 10:25:26,586 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 15 [2025-02-06 10:25:26,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:26,591 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2025-02-06 10:25:26,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2025-02-06 10:25:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2025-02-06 10:25:26,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 10:25:26,593 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:26,596 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:26,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 10:25:26,797 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 [2025-02-06 10:25:26,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-06 10:25:26,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:26,798 INFO L85 PathProgramCache]: Analyzing trace with hash 117695528, now seen corresponding path program 1 times [2025-02-06 10:25:26,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:26,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651207315] [2025-02-06 10:25:26,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:26,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:26,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:26,802 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) [2025-02-06 10:25:26,803 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 [2025-02-06 10:25:26,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 10:25:26,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 10:25:26,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:26,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:26,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:25:26,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:26,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:26,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:26,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:26,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651207315] [2025-02-06 10:25:26,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651207315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:26,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:26,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 10:25:26,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974527322] [2025-02-06 10:25:26,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:26,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:25:26,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:26,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:25:26,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:25:26,870 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2025-02-06 10:25:26,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:26,914 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2025-02-06 10:25:26,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 10:25:26,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 15 [2025-02-06 10:25:26,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:26,915 INFO L225 Difference]: With dead ends: 39 [2025-02-06 10:25:26,915 INFO L226 Difference]: Without dead ends: 33 [2025-02-06 10:25:26,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:25:26,916 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:26,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 63 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:25:26,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-02-06 10:25:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 21. [2025-02-06 10:25:26,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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) [2025-02-06 10:25:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2025-02-06 10:25:26,917 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2025-02-06 10:25:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:26,918 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2025-02-06 10:25:26,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2025-02-06 10:25:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2025-02-06 10:25:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 10:25:26,918 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:26,918 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:26,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 10:25:27,125 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 [2025-02-06 10:25:27,127 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)] === [2025-02-06 10:25:27,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:27,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1572399010, now seen corresponding path program 1 times [2025-02-06 10:25:27,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:27,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528126113] [2025-02-06 10:25:27,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:27,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:27,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:27,132 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) [2025-02-06 10:25:27,133 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 [2025-02-06 10:25:27,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 10:25:27,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 10:25:27,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:27,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:27,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 10:25:27,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:27,205 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 [2025-02-06 10:25:27,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:27,275 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:27,275 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:27,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528126113] [2025-02-06 10:25:27,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528126113] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:27,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:27,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 10:25:27,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044917729] [2025-02-06 10:25:27,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:27,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 10:25:27,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:27,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 10:25:27,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 10:25:27,276 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2025-02-06 10:25:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:27,378 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2025-02-06 10:25:27,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 10:25:27,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 16 [2025-02-06 10:25:27,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:27,379 INFO L225 Difference]: With dead ends: 32 [2025-02-06 10:25:27,379 INFO L226 Difference]: Without dead ends: 32 [2025-02-06 10:25:27,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-02-06 10:25:27,380 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:27,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 70 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:25:27,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-02-06 10:25:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2025-02-06 10:25:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:25:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2025-02-06 10:25:27,383 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 16 [2025-02-06 10:25:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:27,383 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2025-02-06 10:25:27,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2025-02-06 10:25:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2025-02-06 10:25:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 10:25:27,386 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:27,386 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:27,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 10:25:27,586 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 [2025-02-06 10:25:27,587 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-06 10:25:27,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:27,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1443316291, now seen corresponding path program 1 times [2025-02-06 10:25:27,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:27,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859140885] [2025-02-06 10:25:27,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:27,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:27,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:27,590 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) [2025-02-06 10:25:27,591 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 [2025-02-06 10:25:27,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 10:25:27,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 10:25:27,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:27,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:27,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 10:25:27,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:27,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:27,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:27,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:27,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859140885] [2025-02-06 10:25:27,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859140885] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:27,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:27,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 10:25:27,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47462879] [2025-02-06 10:25:27,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:27,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 10:25:27,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:27,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 10:25:27,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 10:25:27,694 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2025-02-06 10:25:27,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:27,786 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2025-02-06 10:25:27,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 10:25:27,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 16 [2025-02-06 10:25:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:27,787 INFO L225 Difference]: With dead ends: 32 [2025-02-06 10:25:27,787 INFO L226 Difference]: Without dead ends: 32 [2025-02-06 10:25:27,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-02-06 10:25:27,788 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:27,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 156 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:25:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-02-06 10:25:27,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 20. [2025-02-06 10:25:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2025-02-06 10:25:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2025-02-06 10:25:27,789 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 16 [2025-02-06 10:25:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:27,790 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2025-02-06 10:25:27,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2025-02-06 10:25:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2025-02-06 10:25:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 10:25:27,790 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:27,790 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:27,799 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 [2025-02-06 10:25:27,997 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 [2025-02-06 10:25:27,997 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-06 10:25:27,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:27,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1869368682, now seen corresponding path program 1 times [2025-02-06 10:25:27,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:27,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037672832] [2025-02-06 10:25:27,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:27,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:27,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:27,999 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:25:28,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 10:25:28,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 10:25:28,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 10:25:28,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:28,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:28,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 10:25:28,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:28,221 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_free_20_~p~1#1.base_9| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_free_20_~p~1#1.base_9|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_free_20_~p~1#1.base_9| (_ bv0 1))))) is different from true [2025-02-06 10:25:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:28,230 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:28,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:28,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037672832] [2025-02-06 10:25:28,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037672832] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:28,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:28,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-06 10:25:28,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956677516] [2025-02-06 10:25:28,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:28,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 10:25:28,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:28,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 10:25:28,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=92, Unknown=1, NotChecked=18, Total=132 [2025-02-06 10:25:28,232 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) [2025-02-06 10:25:28,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:28,425 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2025-02-06 10:25:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 10:25:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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 19 [2025-02-06 10:25:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:28,425 INFO L225 Difference]: With dead ends: 34 [2025-02-06 10:25:28,425 INFO L226 Difference]: Without dead ends: 20 [2025-02-06 10:25:28,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=202, Unknown=1, NotChecked=28, Total=272 [2025-02-06 10:25:28,426 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:28,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 130 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2025-02-06 10:25:28,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-02-06 10:25:28,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-02-06 10:25:28,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 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) [2025-02-06 10:25:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2025-02-06 10:25:28,427 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 19 [2025-02-06 10:25:28,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:28,427 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2025-02-06 10:25:28,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) [2025-02-06 10:25:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2025-02-06 10:25:28,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 10:25:28,428 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:25:28,428 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:28,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 10:25:28,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:28,629 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-02-06 10:25:28,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:25:28,629 INFO L85 PathProgramCache]: Analyzing trace with hash -918046805, now seen corresponding path program 1 times [2025-02-06 10:25:28,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:25:28,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520242366] [2025-02-06 10:25:28,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:25:28,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:28,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:25:28,632 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:25:28,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 10:25:28,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 10:25:28,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 10:25:28,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:25:28,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:25:28,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 10:25:28,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:25:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:25:28,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:25:28,706 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:25:28,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520242366] [2025-02-06 10:25:28,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520242366] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:25:28,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:25:28,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 10:25:28,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511033884] [2025-02-06 10:25:28,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:25:28,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 10:25:28,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:25:28,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 10:25:28,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:25:28,707 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-02-06 10:25:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:25:28,712 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2025-02-06 10:25:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:25:28,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 19 [2025-02-06 10:25:28,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:25:28,713 INFO L225 Difference]: With dead ends: 9 [2025-02-06 10:25:28,713 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 10:25:28,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:25:28,713 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 10:25:28,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:25:28,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 10:25:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 10:25:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 10:25:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 10:25:28,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2025-02-06 10:25:28,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:25:28,714 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 10:25:28,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-02-06 10:25:28,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 10:25:28,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 10:25:28,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-06 10:25:28,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2025-02-06 10:25:28,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2025-02-06 10:25:28,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2025-02-06 10:25:28,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 10:25:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:25:28,923 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:25:28,928 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 10:25:28,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 10:25:28 BoogieIcfgContainer [2025-02-06 10:25:28,930 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 10:25:28,931 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 10:25:28,931 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 10:25:28,931 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 10:25:28,935 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:25:24" (3/4) ... [2025-02-06 10:25:28,936 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 10:25:28,945 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-02-06 10:25:28,947 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-06 10:25:28,947 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 10:25:28,947 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 10:25:29,001 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 10:25:29,002 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 10:25:29,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 10:25:29,002 INFO L158 Benchmark]: Toolchain (without parser) took 4894.93ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 37.3MB in the end (delta: 53.8MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2025-02-06 10:25:29,002 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 62.9MB in the beginning and 62.9MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:25:29,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.73ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 63.0MB in the end (delta: 27.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:25:29,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.91ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 61.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:25:29,003 INFO L158 Benchmark]: Boogie Preprocessor took 39.27ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:25:29,004 INFO L158 Benchmark]: IcfgBuilder took 246.64ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 46.8MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:25:29,004 INFO L158 Benchmark]: TraceAbstraction took 4014.29ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 43.1MB in the end (delta: 3.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2025-02-06 10:25:29,004 INFO L158 Benchmark]: Witness Printer took 71.01ms. Allocated memory is still 117.4MB. Free memory was 43.1MB in the beginning and 37.3MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:25:29,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 62.9MB in the beginning and 62.9MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.73ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 63.0MB in the end (delta: 27.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.91ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 61.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.27ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 246.64ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 46.8MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4014.29ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 43.1MB in the end (delta: 3.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 71.01ms. Allocated memory is still 117.4MB. Free memory was 43.1MB in the beginning and 37.3MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 789]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 800 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 30 IncrementalHoareTripleChecker+Unchecked, 626 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 523 IncrementalHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 174 mSDtfsCounter, 523 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=6, InterpolantAutomatonStates: 68, 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, 9 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 131 ConstructedInterpolants, 3 QuantifiedInterpolants, 570 SizeOfPredicates, 7 NumberOfNonLiveVariables, 451 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 10:25:29,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE