./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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/heap-manipulation/bubble_sort_linux-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:40:32,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:40:32,600 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:40:32,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:40:32,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:40:32,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:40:32,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:40:32,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:40:32,629 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:40:32,629 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:40:32,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:40:32,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:40:32,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:40:32,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:40:32,630 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:40:32,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:40:32,631 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:40:32,631 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:40:32,631 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:40:32,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:40:32,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:40:32,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:40:32,633 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:40:32,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:40:32,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:40:32,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:40:32,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:40:32,634 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:40:32,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:40:32,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:40:32,634 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-memcleanup) ) 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 -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2025-02-06 09:40:32,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:40:32,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:40:32,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:40:32,900 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:40:32,901 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:40:32,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2025-02-06 09:40:34,239 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3582f3725/d998f5c0ff4d4ece9f240c104c363cc5/FLAGc5db77054 [2025-02-06 09:40:34,524 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:40:34,524 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2025-02-06 09:40:34,537 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3582f3725/d998f5c0ff4d4ece9f240c104c363cc5/FLAGc5db77054 [2025-02-06 09:40:34,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3582f3725/d998f5c0ff4d4ece9f240c104c363cc5 [2025-02-06 09:40:34,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:40:34,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:40:34,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:40:34,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:40:34,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:40:34,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:40:34" (1/1) ... [2025-02-06 09:40:34,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733612e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:34, skipping insertion in model container [2025-02-06 09:40:34,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:40:34" (1/1) ... [2025-02-06 09:40:34,593 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:40:34,920 WARN L617 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2025-02-06 09:40:34,921 WARN L617 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2025-02-06 09:40:34,922 WARN L617 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2025-02-06 09:40:34,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:40:34,956 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 09:40:34,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b08168e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:34, skipping insertion in model container [2025-02-06 09:40:34,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:40:34,957 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:40:34,958 INFO L158 Benchmark]: Toolchain (without parser) took 403.64ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 90.8MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:40:34,959 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:40:34,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.76ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 90.8MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:40:34,960 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.76ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 90.8MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: 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/heap-manipulation/bubble_sort_linux-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:40:37,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:40:37,426 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:40:37,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:40:37,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:40:37,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:40:37,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:40:37,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:40:37,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:40:37,466 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:40:37,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:40:37,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:40:37,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:40:37,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:40:37,467 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:40:37,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:40:37,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:40:37,467 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:40:37,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:40:37,468 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:40:37,469 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:40:37,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:40:37,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:40:37,470 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:40:37,470 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:40:37,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:40:37,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:40:37,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:40:37,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:40:37,470 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-memcleanup) ) 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 -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2025-02-06 09:40:37,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:40:37,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:40:37,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:40:37,853 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:40:37,853 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:40:37,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2025-02-06 09:40:39,190 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e0e4d1a8/0934e5f1be9c4daab56c646e034992c5/FLAGb93af61f0 [2025-02-06 09:40:39,429 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:40:39,429 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2025-02-06 09:40:39,442 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e0e4d1a8/0934e5f1be9c4daab56c646e034992c5/FLAGb93af61f0 [2025-02-06 09:40:39,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e0e4d1a8/0934e5f1be9c4daab56c646e034992c5 [2025-02-06 09:40:39,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:40:39,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:40:39,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:40:39,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:40:39,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:40:39,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:40:39" (1/1) ... [2025-02-06 09:40:39,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63367c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:39, skipping insertion in model container [2025-02-06 09:40:39,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:40:39" (1/1) ... [2025-02-06 09:40:39,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:40:39,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:40:39,930 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:40:39,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:40:39,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:40:39,996 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:40:40,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:40:40,089 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:40:40,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40 WrapperNode [2025-02-06 09:40:40,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:40:40,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:40:40,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:40:40,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:40:40,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,138 INFO L138 Inliner]: procedures = 235, calls = 76, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 116 [2025-02-06 09:40:40,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:40:40,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:40:40,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:40:40,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:40:40,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,181 INFO L175 MemorySlicer]: Split 37 memory accesses to 2 slices as follows [2, 35]. 95 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 10 writes are split as follows [0, 10]. [2025-02-06 09:40:40,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,199 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:40:40,208 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:40:40,208 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:40:40,208 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:40:40,209 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (1/1) ... [2025-02-06 09:40:40,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:40:40,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:40:40,243 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 09:40:40,250 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 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2025-02-06 09:40:40,279 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2025-02-06 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:40:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2025-02-06 09:40:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2025-02-06 09:40:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:40:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:40:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2025-02-06 09:40:40,281 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2025-02-06 09:40:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:40:40,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:40:40,406 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:40:40,408 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:40:40,459 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L923: havoc #t~mem54; [2025-02-06 09:40:40,969 INFO L? ?]: Removed 69 outVars from TransFormulas that were not future-live. [2025-02-06 09:40:40,969 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:40:40,979 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:40:40,979 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:40:40,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:40:40 BoogieIcfgContainer [2025-02-06 09:40:40,980 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:40:40,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:40:40,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:40:40,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:40:40,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:40:39" (1/3) ... [2025-02-06 09:40:40,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5decb29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:40:40, skipping insertion in model container [2025-02-06 09:40:40,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:40:40" (2/3) ... [2025-02-06 09:40:40,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5decb29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:40:40, skipping insertion in model container [2025-02-06 09:40:40,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:40:40" (3/3) ... [2025-02-06 09:40:40,986 INFO L128 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2025-02-06 09:40:40,994 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:40:40,995 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bubble_sort_linux-2.i that has 5 procedures, 127 locations, 1 initial locations, 23 loop locations, and 2 error locations. [2025-02-06 09:40:41,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:40:41,035 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;@2066cee9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:40:41,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:40:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 97 states have (on average 1.690721649484536) internal successors, (164), 117 states have internal predecessors, (164), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-02-06 09:40:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 09:40:41,045 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:40:41,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:40:41,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:40:41,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:40:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2044733491, now seen corresponding path program 1 times [2025-02-06 09:40:41,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:40:41,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124999076] [2025-02-06 09:40:41,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:40:41,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:40:41,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:40:41,071 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 09:40:41,072 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 09:40:41,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 09:40:41,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 09:40:41,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:40:41,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:40:41,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 09:40:41,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:40:41,158 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 09:40:41,158 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:40:41,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:40:41,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124999076] [2025-02-06 09:40:41,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124999076] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:40:41,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:40:41,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:40:41,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691107672] [2025-02-06 09:40:41,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:40:41,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:40:41,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:40:41,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:40:41,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:40:41,180 INFO L87 Difference]: Start difference. First operand has 127 states, 97 states have (on average 1.690721649484536) internal successors, (164), 117 states have internal predecessors, (164), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:40:41,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:40:41,200 INFO L93 Difference]: Finished difference Result 122 states and 144 transitions. [2025-02-06 09:40:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:40:41,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-06 09:40:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:40:41,209 INFO L225 Difference]: With dead ends: 122 [2025-02-06 09:40:41,210 INFO L226 Difference]: Without dead ends: 120 [2025-02-06 09:40:41,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:40:41,215 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:40:41,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:40:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-02-06 09:40:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-02-06 09:40:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 109 states have internal predecessors, (115), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 09:40:41,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 142 transitions. [2025-02-06 09:40:41,256 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 142 transitions. Word has length 12 [2025-02-06 09:40:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:40:41,256 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 142 transitions. [2025-02-06 09:40:41,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:40:41,256 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 142 transitions. [2025-02-06 09:40:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-06 09:40:41,257 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:40:41,257 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:40:41,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 09:40:41,457 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 09:40:41,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:40:41,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:40:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash -271416394, now seen corresponding path program 1 times [2025-02-06 09:40:41,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:40:41,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599384982] [2025-02-06 09:40:41,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:40:41,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:40:41,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:40:41,462 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 09:40:41,463 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 09:40:41,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 09:40:41,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 09:40:41,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:40:41,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:40:41,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:40:41,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:40:41,654 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 09:40:41,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:40:41,655 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:40:41,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599384982] [2025-02-06 09:40:41,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599384982] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:40:41,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:40:41,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:40:41,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735301388] [2025-02-06 09:40:41,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:40:41,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:40:41,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:40:41,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:40:41,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:40:41,657 INFO L87 Difference]: Start difference. First operand 120 states and 142 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:40:41,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:40:41,788 INFO L93 Difference]: Finished difference Result 119 states and 140 transitions. [2025-02-06 09:40:41,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:40:41,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2025-02-06 09:40:41,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:40:41,790 INFO L225 Difference]: With dead ends: 119 [2025-02-06 09:40:41,790 INFO L226 Difference]: Without dead ends: 119 [2025-02-06 09:40:41,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:40:41,790 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 191 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:40:41,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 273 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:40:41,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2025-02-06 09:40:41,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2025-02-06 09:40:41,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.2127659574468086) internal successors, (114), 108 states have internal predecessors, (114), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 09:40:41,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 140 transitions. [2025-02-06 09:40:41,796 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 140 transitions. Word has length 23 [2025-02-06 09:40:41,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:40:41,797 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 140 transitions. [2025-02-06 09:40:41,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:40:41,797 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 140 transitions. [2025-02-06 09:40:41,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 09:40:41,798 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:40:41,798 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:40:41,804 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 09:40:42,002 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 09:40:42,002 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:40:42,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:40:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 605250287, now seen corresponding path program 1 times [2025-02-06 09:40:42,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:40:42,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451075640] [2025-02-06 09:40:42,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:40:42,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:40:42,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:40:42,006 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 09:40:42,007 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 09:40:42,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 09:40:42,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 09:40:42,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:40:42,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:40:42,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 09:40:42,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:40:42,208 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 09:40:42,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 09:40:42,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2025-02-06 09:40:42,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2025-02-06 09:40:42,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2025-02-06 09:40:42,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2025-02-06 09:40:42,443 INFO L349 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2025-02-06 09:40:42,443 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 1 case distinctions, treesize of input 18 treesize of output 26 [2025-02-06 09:40:42,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2025-02-06 09:40:42,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 54 [2025-02-06 09:40:42,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 52 [2025-02-06 09:40:42,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 74 [2025-02-06 09:40:42,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 42 [2025-02-06 09:40:45,404 INFO L349 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2025-02-06 09:40:45,405 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 1 case distinctions, treesize of input 18 treesize of output 26 [2025-02-06 09:40:45,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2025-02-06 09:40:45,989 INFO L349 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2025-02-06 09:40:45,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 30 [2025-02-06 09:40:47,338 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse0 (select |c_#memory_$Pointer$#1.base| (_ bv3 32)))) (or (exists ((v_arrayElimArr_2 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~next#1.offset_7| (_ BitVec 32)) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~new#1.offset_7| (_ BitVec 32))) (and (= (store (select (store (store |c_#memory_$Pointer$#1.base| (_ bv3 32) v_arrayElimArr_2) |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_1) (_ bv3 32) v_arrayElimArr_2) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |v_list_add___list_add_~new#1.offset_7| (_ bv3 32)) (bvadd (_ bv4 32) |v_list_add___list_add_~new#1.offset_7|) (_ bv3 32))) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) .cse0) (= (select v_arrayElimArr_2 (bvadd (_ bv4 32) |v_list_add___list_add_~next#1.offset_7|)) |c_ULTIMATE.start_gl_insert_~node~1#1.base|))) (exists ((v_DerPreprocessor_12 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_13 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~new#1.offset_7| (_ BitVec 32))) (and (= |c_ULTIMATE.start_gl_insert_~node~1#1.base| (select v_DerPreprocessor_13 |v_list_add___list_add_~new#1.offset_7|)) (= .cse0 (store (select (store (store |c_#memory_$Pointer$#1.base| (_ bv3 32) v_DerPreprocessor_12) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_13) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (select v_DerPreprocessor_13 (bvadd (_ bv4 32) |v_list_add___list_add_~new#1.offset_7|)) (_ bv3 32)))) (exists ((|v_list_add___list_add_~next#1.base_7| (_ BitVec 32)) (v_DerPreprocessor_8 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~next#1.offset_7| (_ BitVec 32)) (v_DerPreprocessor_7 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~new#1.offset_7| (_ BitVec 32)) (v_arrayElimArr_8 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= (select v_arrayElimArr_8 (bvadd (_ bv4 32) |v_list_add___list_add_~next#1.offset_7|)) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (= (store (select (store (store (store |c_#memory_$Pointer$#1.base| (_ bv3 32) v_DerPreprocessor_8) |v_list_add___list_add_~next#1.base_7| v_arrayElimArr_8) |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select (store (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_7) (_ bv3 32) v_DerPreprocessor_8) |v_list_add___list_add_~next#1.base_7| v_arrayElimArr_8) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |v_list_add___list_add_~new#1.offset_7| |v_list_add___list_add_~next#1.base_7|) (bvadd (_ bv4 32) |v_list_add___list_add_~new#1.offset_7|) (_ bv3 32))) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) .cse0) (not (= |c_ULTIMATE.start_gl_insert_~node~1#1.base| |v_list_add___list_add_~next#1.base_7|)) (not (= (_ bv3 32) |v_list_add___list_add_~next#1.base_7|)))))) (not (= (_ bv3 32) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (_ bv3 32) |c_~#gl_list~0.base|)) is different from true [2025-02-06 09:40:47,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:40:47,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 78 [2025-02-06 09:40:47,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 65 [2025-02-06 09:40:47,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:40:47,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 65 [2025-02-06 09:40:47,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 68 [2025-02-06 09:40:47,428 INFO L349 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2025-02-06 09:40:47,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 72 [2025-02-06 09:40:47,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2025-02-06 09:40:47,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2025-02-06 09:40:47,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2025-02-06 09:40:47,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2025-02-06 09:40:47,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2025-02-06 09:40:48,042 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 09:40:48,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:40:48,042 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:40:48,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451075640] [2025-02-06 09:40:48,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451075640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:40:48,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:40:48,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 09:40:48,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788549605] [2025-02-06 09:40:48,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:40:48,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 09:40:48,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:40:48,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 09:40:48,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=69, Unknown=2, NotChecked=16, Total=110 [2025-02-06 09:40:48,044 INFO L87 Difference]: Start difference. First operand 119 states and 140 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:40:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:40:54,807 INFO L93 Difference]: Finished difference Result 227 states and 266 transitions. [2025-02-06 09:40:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 09:40:54,809 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2025-02-06 09:40:54,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:40:54,813 INFO L225 Difference]: With dead ends: 227 [2025-02-06 09:40:54,813 INFO L226 Difference]: Without dead ends: 227 [2025-02-06 09:40:54,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=82, Invalid=219, Unknown=9, NotChecked=32, Total=342 [2025-02-06 09:40:54,816 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 504 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 71 mSolverCounterUnsat, 134 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 134 IncrementalHoareTripleChecker+Unknown, 264 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2025-02-06 09:40:54,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 583 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 406 Invalid, 134 Unknown, 264 Unchecked, 5.9s Time] [2025-02-06 09:40:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2025-02-06 09:40:54,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 194. [2025-02-06 09:40:54,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 164 states have (on average 1.225609756097561) internal successors, (201), 179 states have internal predecessors, (201), 23 states have call successors, (23), 6 states have call predecessors, (23), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 09:40:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 233 transitions. [2025-02-06 09:40:54,850 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 233 transitions. Word has length 26 [2025-02-06 09:40:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:40:54,850 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 233 transitions. [2025-02-06 09:40:54,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:40:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 233 transitions. [2025-02-06 09:40:54,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-02-06 09:40:54,851 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:40:54,851 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:40:54,859 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 09:40:55,051 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 09:40:55,053 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:40:55,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:40:55,056 INFO L85 PathProgramCache]: Analyzing trace with hash -663262413, now seen corresponding path program 1 times [2025-02-06 09:40:55,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:40:55,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445588357] [2025-02-06 09:40:55,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:40:55,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:40:55,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:40:55,058 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 09:40:55,060 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 09:40:55,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 09:40:55,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 09:40:55,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:40:55,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:40:55,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-02-06 09:40:55,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:40:55,330 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 09:40:55,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 09:40:55,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:40:55,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:40:55,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2025-02-06 09:40:55,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:40:55,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2025-02-06 09:40:55,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2025-02-06 09:40:55,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:40:55,791 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 09:40:55,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:40:55,791 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:40:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445588357] [2025-02-06 09:40:55,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445588357] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:40:55,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:40:55,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 09:40:55,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366954780] [2025-02-06 09:40:55,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:40:55,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 09:40:55,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:40:55,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 09:40:55,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=89, Unknown=1, NotChecked=0, Total=110 [2025-02-06 09:40:55,793 INFO L87 Difference]: Start difference. First operand 194 states and 233 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:41:04,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:41:07,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:41:08,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:41:10,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:41:12,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:41:12,098 INFO L93 Difference]: Finished difference Result 309 states and 366 transitions. [2025-02-06 09:41:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 09:41:12,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2025-02-06 09:41:12,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:41:12,101 INFO L225 Difference]: With dead ends: 309 [2025-02-06 09:41:12,101 INFO L226 Difference]: Without dead ends: 309 [2025-02-06 09:41:12,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=56, Invalid=211, Unknown=5, NotChecked=0, Total=272 [2025-02-06 09:41:12,103 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 251 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 34 mSolverCounterUnsat, 76 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 76 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2025-02-06 09:41:12,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 470 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1011 Invalid, 76 Unknown, 0 Unchecked, 11.9s Time] [2025-02-06 09:41:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2025-02-06 09:41:12,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 284. [2025-02-06 09:41:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 246 states have (on average 1.2195121951219512) internal successors, (300), 262 states have internal predecessors, (300), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-06 09:41:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 342 transitions. [2025-02-06 09:41:12,127 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 342 transitions. Word has length 29 [2025-02-06 09:41:12,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:41:12,127 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 342 transitions. [2025-02-06 09:41:12,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:41:12,128 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 342 transitions. [2025-02-06 09:41:12,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-06 09:41:12,128 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:41:12,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:41:12,148 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 09:41:12,328 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 09:41:12,329 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:41:12,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:41:12,329 INFO L85 PathProgramCache]: Analyzing trace with hash 945304050, now seen corresponding path program 1 times [2025-02-06 09:41:12,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:41:12,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421243902] [2025-02-06 09:41:12,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:41:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:41:12,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:41:12,332 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 09:41:12,334 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 09:41:12,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 09:41:12,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 09:41:12,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:41:12,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:41:12,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-02-06 09:41:12,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:41:12,578 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 09:41:12,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 09:41:12,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:41:12,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:41:13,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2025-02-06 09:41:13,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 57 [2025-02-06 09:41:13,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2025-02-06 09:41:13,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2025-02-06 09:41:13,259 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2025-02-06 09:41:13,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 78 [2025-02-06 09:41:13,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2025-02-06 09:41:14,014 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 09:41:14,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:41:14,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:41:14,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421243902] [2025-02-06 09:41:14,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421243902] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:41:14,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:41:14,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 09:41:14,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071312927] [2025-02-06 09:41:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:41:14,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 09:41:14,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:41:14,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 09:41:14,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:41:14,016 INFO L87 Difference]: Start difference. First operand 284 states and 342 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:41:19,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:41:19,073 INFO L93 Difference]: Finished difference Result 308 states and 364 transitions. [2025-02-06 09:41:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 09:41:19,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2025-02-06 09:41:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:41:19,075 INFO L225 Difference]: With dead ends: 308 [2025-02-06 09:41:19,075 INFO L226 Difference]: Without dead ends: 308 [2025-02-06 09:41:19,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2025-02-06 09:41:19,075 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 293 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2025-02-06 09:41:19,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 517 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 967 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2025-02-06 09:41:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2025-02-06 09:41:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 284. [2025-02-06 09:41:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 246 states have (on average 1.2154471544715446) internal successors, (299), 262 states have internal predecessors, (299), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-06 09:41:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 341 transitions. [2025-02-06 09:41:19,089 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 341 transitions. Word has length 33 [2025-02-06 09:41:19,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:41:19,089 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 341 transitions. [2025-02-06 09:41:19,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:41:19,089 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 341 transitions. [2025-02-06 09:41:19,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 09:41:19,090 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:41:19,090 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:41:19,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 09:41:19,295 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 09:41:19,295 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:41:19,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:41:19,296 INFO L85 PathProgramCache]: Analyzing trace with hash 729492009, now seen corresponding path program 1 times [2025-02-06 09:41:19,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:41:19,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022319160] [2025-02-06 09:41:19,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:41:19,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:41:19,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:41:19,298 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 09:41:19,299 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 09:41:19,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 09:41:19,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 09:41:19,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:41:19,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:41:19,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 54 conjuncts are in the unsatisfiable core [2025-02-06 09:41:19,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:41:19,471 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 09:41:19,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 09:41:19,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:41:19,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:41:22,367 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2025-02-06 09:41:22,508 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2025-02-06 09:41:22,671 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2025-02-06 09:41:24,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 69 [2025-02-06 09:41:24,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 65 [2025-02-06 09:41:24,448 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 31 treesize of output 26 [2025-02-06 09:41:24,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 34 [2025-02-06 09:41:24,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 18 [2025-02-06 09:41:24,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2025-02-06 09:41:24,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2025-02-06 09:41:24,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:41:24,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:41:24,746 INFO L349 Elim1Store]: treesize reduction 138, result has 9.8 percent of original size [2025-02-06 09:41:24,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 97 treesize of output 76 [2025-02-06 09:41:24,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 60 [2025-02-06 09:41:25,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 48 [2025-02-06 09:41:26,095 INFO L349 Elim1Store]: treesize reduction 108, result has 2.7 percent of original size [2025-02-06 09:41:26,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 75 treesize of output 29 [2025-02-06 09:41:26,246 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 09:41:26,246 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:41:26,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:41:26,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022319160] [2025-02-06 09:41:26,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022319160] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:41:26,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:41:26,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 09:41:26,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459216989] [2025-02-06 09:41:26,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:41:26,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:41:26,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:41:26,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:41:26,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=131, Unknown=1, NotChecked=0, Total=156 [2025-02-06 09:41:26,247 INFO L87 Difference]: Start difference. First operand 284 states and 341 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 9 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:41:29,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:41:31,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:41:33,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:41:49,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:41:49,486 INFO L93 Difference]: Finished difference Result 307 states and 362 transitions. [2025-02-06 09:41:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 09:41:49,486 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 9 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2025-02-06 09:41:49,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:41:49,489 INFO L225 Difference]: With dead ends: 307 [2025-02-06 09:41:49,489 INFO L226 Difference]: Without dead ends: 307 [2025-02-06 09:41:49,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=72, Invalid=347, Unknown=1, NotChecked=0, Total=420 [2025-02-06 09:41:49,490 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 290 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:41:49,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 585 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1198 Invalid, 1 Unknown, 0 Unchecked, 22.1s Time] [2025-02-06 09:41:49,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2025-02-06 09:41:49,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 284. [2025-02-06 09:41:49,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 246 states have (on average 1.2113821138211383) internal successors, (298), 262 states have internal predecessors, (298), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-06 09:41:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 340 transitions. [2025-02-06 09:41:49,498 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 340 transitions. Word has length 36 [2025-02-06 09:41:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:41:49,500 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 340 transitions. [2025-02-06 09:41:49,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 9 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:41:49,500 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 340 transitions. [2025-02-06 09:41:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-02-06 09:41:49,500 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:41:49,500 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:41:49,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:41:49,701 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 09:41:49,701 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:41:49,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:41:49,702 INFO L85 PathProgramCache]: Analyzing trace with hash 689541295, now seen corresponding path program 1 times [2025-02-06 09:41:49,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:41:49,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633574334] [2025-02-06 09:41:49,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:41:49,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:41:49,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:41:49,704 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 09:41:49,705 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 09:41:49,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 09:41:49,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 09:41:49,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:41:49,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:41:49,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 56 conjuncts are in the unsatisfiable core [2025-02-06 09:41:49,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:41:49,912 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 09:41:49,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 09:41:49,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:41:49,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:41:51,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2025-02-06 09:41:51,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 78 [2025-02-06 09:41:51,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2025-02-06 09:41:51,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2025-02-06 09:41:51,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 66 [2025-02-06 09:41:51,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2025-02-06 09:41:51,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:41:51,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2025-02-06 09:41:51,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2025-02-06 09:41:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:41:51,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2025-02-06 09:41:51,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29 [2025-02-06 09:41:51,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 34 [2025-02-06 09:41:51,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2025-02-06 09:41:52,205 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 09:41:52,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:41:52,205 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:41:52,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633574334] [2025-02-06 09:41:52,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633574334] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:41:52,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:41:52,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-06 09:41:52,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851009226] [2025-02-06 09:41:52,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:41:52,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 09:41:52,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:41:52,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 09:41:52,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-06 09:41:52,206 INFO L87 Difference]: Start difference. First operand 284 states and 340 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:42:03,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:42:03,630 INFO L93 Difference]: Finished difference Result 306 states and 360 transitions. [2025-02-06 09:42:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:42:03,631 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2025-02-06 09:42:03,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:42:03,635 INFO L225 Difference]: With dead ends: 306 [2025-02-06 09:42:03,635 INFO L226 Difference]: Without dead ends: 306 [2025-02-06 09:42:03,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2025-02-06 09:42:03,636 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 280 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2025-02-06 09:42:03,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 592 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1068 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2025-02-06 09:42:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2025-02-06 09:42:03,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 284. [2025-02-06 09:42:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 246 states have (on average 1.2073170731707317) internal successors, (297), 262 states have internal predecessors, (297), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-06 09:42:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 339 transitions. [2025-02-06 09:42:03,645 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 339 transitions. Word has length 39 [2025-02-06 09:42:03,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:42:03,645 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 339 transitions. [2025-02-06 09:42:03,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 09:42:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 339 transitions. [2025-02-06 09:42:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-02-06 09:42:03,655 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:42:03,655 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:42:03,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 09:42:03,856 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 09:42:03,856 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:42:03,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:42:03,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2071995618, now seen corresponding path program 1 times [2025-02-06 09:42:03,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:42:03,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525465994] [2025-02-06 09:42:03,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:42:03,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:42:03,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:42:03,863 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 09:42:03,866 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 09:42:03,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-06 09:42:03,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-06 09:42:03,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:42:03,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:42:03,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 68 conjuncts are in the unsatisfiable core [2025-02-06 09:42:03,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:42:04,059 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 09:42:04,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-02-06 09:42:04,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:42:04,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:42:04,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2025-02-06 09:42:04,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2025-02-06 09:42:04,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:42:04,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2025-02-06 09:42:04,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2025-02-06 09:42:04,631 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 09:42:04,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 09:42:04,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2025-02-06 09:42:04,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:42:05,953 INFO L349 Elim1Store]: treesize reduction 156, result has 19.2 percent of original size [2025-02-06 09:42:05,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 206 treesize of output 333 [2025-02-06 09:42:05,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 328 treesize of output 267 [2025-02-06 09:42:06,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:42:06,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:42:06,068 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:42:06,169 INFO L349 Elim1Store]: treesize reduction 41, result has 22.6 percent of original size [2025-02-06 09:42:06,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 161 treesize of output 137 [2025-02-06 09:42:06,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2025-02-06 09:42:06,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2025-02-06 09:42:06,463 INFO L349 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2025-02-06 09:42:06,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 50 [2025-02-06 09:42:06,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2025-02-06 09:42:06,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:42:06,671 INFO L349 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2025-02-06 09:42:06,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 541 treesize of output 404 [2025-02-06 09:42:06,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:42:06,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 11 [2025-02-06 09:42:06,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:42:06,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 11 [2025-02-06 09:42:07,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2025-02-06 09:42:07,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:42:07,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:42:07,550 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_445 (Array (_ BitVec 32) (_ BitVec 32))) (|v_list_add___list_add_~new#1.offset_24| (_ BitVec 32)) (v_ArrVal_438 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_445))) (store .cse0 |c_~#gl_list~0.base| (store (select (store .cse0 |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select .cse0 |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |v_list_add___list_add_~new#1.offset_24| .cse1) (bvadd (_ bv4 32) |v_list_add___list_add_~new#1.offset_24|) |c_~#gl_list~0.base|)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_438) |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) |c_~#gl_list~0.base|))) is different from false [2025-02-06 09:42:07,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:42:07,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525465994] [2025-02-06 09:42:07,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525465994] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:42:07,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1355668587] [2025-02-06 09:42:07,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:42:07,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 09:42:07,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 09:42:07,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 09:42:07,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2025-02-06 09:42:07,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-06 09:42:08,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-06 09:42:08,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:42:08,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:42:08,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-02-06 09:42:08,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:42:08,205 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 09:42:08,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-02-06 09:42:08,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:42:08,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-06 09:42:09,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2025-02-06 09:42:09,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 48 [2025-02-06 09:42:09,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2025-02-06 09:42:09,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 18 [2025-02-06 09:42:13,248 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-06 09:42:13,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 33 [2025-02-06 09:42:13,338 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 09:42:13,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 09:42:13,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2025-02-06 09:42:13,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 09:42:13,587 INFO L349 Elim1Store]: treesize reduction 66, result has 22.4 percent of original size [2025-02-06 09:42:13,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 113 [2025-02-06 09:42:13,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 78 [2025-02-06 09:42:13,633 INFO L349 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2025-02-06 09:42:13,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 39 [2025-02-06 09:42:13,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2025-02-06 09:42:14,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2025-02-06 09:42:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:42:14,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:42:14,401 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_563 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_561 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_562 (_ BitVec 32)) (v_ArrVal_438 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) v_ArrVal_563))) (store .cse0 |c_~#gl_list~0.base| (store (select (store .cse0 |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_561) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ArrVal_562))) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_ArrVal_438) |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) |c_~#gl_list~0.base|))) is different from false [2025-02-06 09:42:14,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1355668587] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:42:14,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:42:14,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2025-02-06 09:42:14,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896817022] [2025-02-06 09:42:14,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:42:14,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 09:42:14,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:42:14,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 09:42:14,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=616, Unknown=44, NotChecked=106, Total=870 [2025-02-06 09:42:14,404 INFO L87 Difference]: Start difference. First operand 284 states and 339 transitions. Second operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 14 states have internal predecessors, (55), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4)