./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.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/uthash-2.0.2/uthash_SFH_test7-1.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 c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 10:02:05,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:02:05,115 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 10:02:05,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:02:05,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:02:05,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:02:05,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:02:05,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:02:05,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:02:05,132 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:02:05,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:02:05,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:02:05,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:02:05,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:02:05,132 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:02:05,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:02:05,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:02:05,134 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:02:05,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:02:05,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:02:05,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:02:05,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 10:02:05,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 10:02:05,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:02:05,135 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:02:05,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:02:05,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:02:05,135 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 -> c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 [2025-02-06 10:02:05,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:02:05,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:02:05,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:02:05,355 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:02:05,356 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:02:05,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2025-02-06 10:02:06,592 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b8f8bf0d/8ee413f468c448a18ac3738bba2300bf/FLAG650deaba8 [2025-02-06 10:02:06,918 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:02:06,919 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2025-02-06 10:02:06,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b8f8bf0d/8ee413f468c448a18ac3738bba2300bf/FLAG650deaba8 [2025-02-06 10:02:07,132 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b8f8bf0d/8ee413f468c448a18ac3738bba2300bf [2025-02-06 10:02:07,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:02:07,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:02:07,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:02:07,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:02:07,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:02:07,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:02:07" (1/1) ... [2025-02-06 10:02:07,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c39bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:07, skipping insertion in model container [2025-02-06 10:02:07,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:02:07" (1/1) ... [2025-02-06 10:02:07,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:02:07,359 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,377 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,380 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,382 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,386 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,406 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,406 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,408 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,408 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,410 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,411 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,411 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,412 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,414 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:07,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:02:07,427 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 10:02:07,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39739b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:07, skipping insertion in model container [2025-02-06 10:02:07,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:02:07,428 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 10:02:07,429 INFO L158 Benchmark]: Toolchain (without parser) took 293.81ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 103.4MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:02:07,429 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:02:07,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.21ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 103.4MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:02:07,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.21ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 103.4MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: 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/uthash-2.0.2/uthash_SFH_test7-1.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 c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 10:02:09,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:02:09,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 10:02:09,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:02:09,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:02:09,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:02:09,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:02:09,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:02:09,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:02:09,492 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:02:09,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:02:09,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:02:09,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:02:09,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:02:09,493 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:02:09,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:02:09,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 10:02:09,494 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:02:09,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:02:09,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:02:09,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:02:09,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 10:02:09,494 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:02:09,495 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:02:09,496 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:02:09,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:02:09,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:02:09,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:02:09,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:02:09,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:02:09,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:02:09,496 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 10:02:09,496 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 10:02:09,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:02:09,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:02:09,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:02:09,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:02:09,497 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 -> c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 [2025-02-06 10:02:09,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:02:09,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:02:09,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:02:09,781 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:02:09,781 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:02:09,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2025-02-06 10:02:10,942 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/626021e13/bb3fd451a52a4728a2745264e99e2abc/FLAGbe1cb1a3c [2025-02-06 10:02:11,200 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:02:11,201 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2025-02-06 10:02:11,217 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/626021e13/bb3fd451a52a4728a2745264e99e2abc/FLAGbe1cb1a3c [2025-02-06 10:02:11,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/626021e13/bb3fd451a52a4728a2745264e99e2abc [2025-02-06 10:02:11,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:02:11,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:02:11,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:02:11,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:02:11,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:02:11,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:11,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6896f51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11, skipping insertion in model container [2025-02-06 10:02:11,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:11,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:02:11,553 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,591 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,594 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,597 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,603 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,630 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,630 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,632 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,633 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,636 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,637 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,638 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,638 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,643 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:02:11,660 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 10:02:11,674 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:02:11,706 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,720 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,725 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,730 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,748 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,748 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,750 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,751 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,751 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,752 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,755 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 10:02:11,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:02:11,763 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 10:02:11,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:02:11,882 INFO L204 MainTranslator]: Completed translation [2025-02-06 10:02:11,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11 WrapperNode [2025-02-06 10:02:11,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:02:11,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 10:02:11,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 10:02:11,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 10:02:11,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:11,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:11,956 INFO L138 Inliner]: procedures = 179, calls = 272, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 973 [2025-02-06 10:02:11,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 10:02:11,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 10:02:11,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 10:02:11,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 10:02:11,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:11,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:11,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,046 INFO L175 MemorySlicer]: Split 253 memory accesses to 3 slices as follows [2, 34, 217]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2025-02-06 10:02:12,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,073 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 10:02:12,083 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 10:02:12,083 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 10:02:12,083 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 10:02:12,084 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (1/1) ... [2025-02-06 10:02:12,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:02:12,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:12,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 10:02:12,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 10:02:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 10:02:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 10:02:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 10:02:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 10:02:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 10:02:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 10:02:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 10:02:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 10:02:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 10:02:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 10:02:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 10:02:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 10:02:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 10:02:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 10:02:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 10:02:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 10:02:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 10:02:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 10:02:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 10:02:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 10:02:12,292 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 10:02:12,293 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 10:02:18,616 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 10:02:18,654 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2025-02-06 10:02:18,654 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 10:02:18,661 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 10:02:18,662 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 10:02:18,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:02:18 BoogieIcfgContainer [2025-02-06 10:02:18,662 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 10:02:18,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 10:02:18,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 10:02:18,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 10:02:18,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 10:02:11" (1/3) ... [2025-02-06 10:02:18,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8116d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:02:18, skipping insertion in model container [2025-02-06 10:02:18,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:02:11" (2/3) ... [2025-02-06 10:02:18,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8116d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:02:18, skipping insertion in model container [2025-02-06 10:02:18,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:02:18" (3/3) ... [2025-02-06 10:02:18,668 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test7-1.i [2025-02-06 10:02:18,677 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 10:02:18,678 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test7-1.i that has 5 procedures, 201 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-06 10:02:18,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 10:02:18,708 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;@72f5fd51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 10:02:18,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 10:02:18,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 183 states have (on average 1.6557377049180328) internal successors, (303), 186 states have internal predecessors, (303), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 10:02:18,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 10:02:18,714 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:18,714 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:02:18,715 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:18,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:18,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2131869671, now seen corresponding path program 1 times [2025-02-06 10:02:18,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:18,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552526890] [2025-02-06 10:02:18,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:18,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:18,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:18,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:18,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 10:02:18,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 10:02:18,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 10:02:18,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:18,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:18,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 10:02:18,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:02:18,873 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:18,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552526890] [2025-02-06 10:02:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552526890] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:18,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:18,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 10:02:18,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987056342] [2025-02-06 10:02:18,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:18,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 10:02:18,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:18,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 10:02:18,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 10:02:18,894 INFO L87 Difference]: Start difference. First operand has 193 states, 183 states have (on average 1.6557377049180328) internal successors, (303), 186 states have internal predecessors, (303), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 10:02:18,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:18,910 INFO L93 Difference]: Finished difference Result 190 states and 245 transitions. [2025-02-06 10:02:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 10:02:18,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 10:02:18,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:18,916 INFO L225 Difference]: With dead ends: 190 [2025-02-06 10:02:18,916 INFO L226 Difference]: Without dead ends: 188 [2025-02-06 10:02:18,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 10:02:18,919 INFO L435 NwaCegarLoop]: 245 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, 245 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 10:02:18,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:02:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2025-02-06 10:02:18,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2025-02-06 10:02:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 180 states have (on average 1.3055555555555556) internal successors, (235), 182 states have internal predecessors, (235), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 10:02:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 243 transitions. [2025-02-06 10:02:18,948 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 243 transitions. Word has length 8 [2025-02-06 10:02:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:18,948 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 243 transitions. [2025-02-06 10:02:18,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 10:02:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 243 transitions. [2025-02-06 10:02:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 10:02:18,949 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:18,949 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:02:18,956 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 10:02:19,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:19,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:19,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:19,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1766099573, now seen corresponding path program 1 times [2025-02-06 10:02:19,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:19,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638534873] [2025-02-06 10:02:19,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:19,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:19,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:19,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:19,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 10:02:19,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 10:02:19,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 10:02:19,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:19,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:19,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 10:02:19,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:19,299 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:19,300 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:19,300 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:19,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 10:02:19,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:02:19,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 10:02:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:02:19,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:19,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:19,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638534873] [2025-02-06 10:02:19,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638534873] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:19,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:19,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 10:02:19,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142994983] [2025-02-06 10:02:19,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:19,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:02:19,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:19,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:02:19,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:02:19,379 INFO L87 Difference]: Start difference. First operand 188 states and 243 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 10:02:19,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:19,844 INFO L93 Difference]: Finished difference Result 364 states and 475 transitions. [2025-02-06 10:02:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 10:02:19,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 10:02:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:19,848 INFO L225 Difference]: With dead ends: 364 [2025-02-06 10:02:19,850 INFO L226 Difference]: Without dead ends: 364 [2025-02-06 10:02:19,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:02:19,851 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 221 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:19,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 661 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 10:02:19,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2025-02-06 10:02:19,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 190. [2025-02-06 10:02:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 182 states have (on average 1.3021978021978022) internal successors, (237), 184 states have internal predecessors, (237), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 10:02:19,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 245 transitions. [2025-02-06 10:02:19,864 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 245 transitions. Word has length 10 [2025-02-06 10:02:19,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:19,864 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 245 transitions. [2025-02-06 10:02:19,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 10:02:19,864 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 245 transitions. [2025-02-06 10:02:19,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 10:02:19,865 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:19,865 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 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 10:02:19,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 10:02:20,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:20,070 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:20,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1474550230, now seen corresponding path program 1 times [2025-02-06 10:02:20,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619862869] [2025-02-06 10:02:20,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:20,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:20,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:20,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:20,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 10:02:20,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 10:02:20,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 10:02:20,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:20,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:20,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 10:02:20,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:02:20,583 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:20,583 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:20,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619862869] [2025-02-06 10:02:20,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619862869] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:20,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:20,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 10:02:20,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408338446] [2025-02-06 10:02:20,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:20,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 10:02:20,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:20,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 10:02:20,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:02:20,585 INFO L87 Difference]: Start difference. First operand 190 states and 245 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 10:02:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:21,019 INFO L93 Difference]: Finished difference Result 296 states and 385 transitions. [2025-02-06 10:02:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 10:02:21,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-02-06 10:02:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:21,021 INFO L225 Difference]: With dead ends: 296 [2025-02-06 10:02:21,021 INFO L226 Difference]: Without dead ends: 296 [2025-02-06 10:02:21,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:02:21,021 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 100 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:21,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 503 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 10:02:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2025-02-06 10:02:21,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 293. [2025-02-06 10:02:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 285 states have (on average 1.312280701754386) internal successors, (374), 287 states have internal predecessors, (374), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 10:02:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 382 transitions. [2025-02-06 10:02:21,031 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 382 transitions. Word has length 65 [2025-02-06 10:02:21,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:21,031 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 382 transitions. [2025-02-06 10:02:21,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 10:02:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 382 transitions. [2025-02-06 10:02:21,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-06 10:02:21,033 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:21,033 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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 10:02:21,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 10:02:21,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:21,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:21,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:21,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1823349861, now seen corresponding path program 1 times [2025-02-06 10:02:21,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:21,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224712845] [2025-02-06 10:02:21,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:21,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:21,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:21,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:21,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 10:02:21,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 10:02:21,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 10:02:21,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:21,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:21,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 10:02:21,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 10:02:21,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:21,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:21,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224712845] [2025-02-06 10:02:21,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224712845] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:21,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:21,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 10:02:21,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231274020] [2025-02-06 10:02:21,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:21,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 10:02:21,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:21,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 10:02:21,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:02:21,537 INFO L87 Difference]: Start difference. First operand 293 states and 382 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:21,619 INFO L93 Difference]: Finished difference Result 333 states and 422 transitions. [2025-02-06 10:02:21,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 10:02:21,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2025-02-06 10:02:21,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:21,621 INFO L225 Difference]: With dead ends: 333 [2025-02-06 10:02:21,621 INFO L226 Difference]: Without dead ends: 333 [2025-02-06 10:02:21,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:02:21,622 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 8 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:21,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:02:21,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-02-06 10:02:21,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2025-02-06 10:02:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 325 states have (on average 1.2738461538461539) internal successors, (414), 327 states have internal predecessors, (414), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 10:02:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 422 transitions. [2025-02-06 10:02:21,648 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 422 transitions. Word has length 80 [2025-02-06 10:02:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:21,651 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 422 transitions. [2025-02-06 10:02:21,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:21,652 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 422 transitions. [2025-02-06 10:02:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-06 10:02:21,654 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:21,655 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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 10:02:21,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 10:02:21,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:21,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:21,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2033607932, now seen corresponding path program 1 times [2025-02-06 10:02:21,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:21,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795709005] [2025-02-06 10:02:21,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:21,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:21,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:21,862 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:21,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 10:02:22,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 10:02:22,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 10:02:22,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:22,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:22,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:02:22,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:22,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 10:02:22,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:22,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:22,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795709005] [2025-02-06 10:02:22,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795709005] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:22,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:22,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 10:02:22,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751211446] [2025-02-06 10:02:22,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:22,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:02:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:22,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:02:22,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:02:22,411 INFO L87 Difference]: Start difference. First operand 333 states and 422 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:26,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 10:02:30,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 10:02:31,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:31,757 INFO L93 Difference]: Finished difference Result 420 states and 536 transitions. [2025-02-06 10:02:31,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 10:02:31,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2025-02-06 10:02:31,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:31,762 INFO L225 Difference]: With dead ends: 420 [2025-02-06 10:02:31,762 INFO L226 Difference]: Without dead ends: 420 [2025-02-06 10:02:31,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:02:31,762 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 479 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:31,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 426 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2025-02-06 10:02:31,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2025-02-06 10:02:31,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 417. [2025-02-06 10:02:31,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 409 states have (on average 1.2836185819070904) internal successors, (525), 411 states have internal predecessors, (525), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 10:02:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 533 transitions. [2025-02-06 10:02:31,774 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 533 transitions. Word has length 80 [2025-02-06 10:02:31,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:31,774 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 533 transitions. [2025-02-06 10:02:31,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 533 transitions. [2025-02-06 10:02:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-06 10:02:31,775 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:31,779 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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 10:02:31,790 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 10:02:31,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:31,980 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:31,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:31,981 INFO L85 PathProgramCache]: Analyzing trace with hash 87484583, now seen corresponding path program 1 times [2025-02-06 10:02:31,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:31,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541077959] [2025-02-06 10:02:31,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:31,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:31,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:31,984 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:31,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 10:02:32,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-06 10:02:32,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 10:02:32,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:32,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:32,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 10:02:32,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 10:02:32,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:32,306 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:32,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541077959] [2025-02-06 10:02:32,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541077959] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:32,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:32,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 10:02:32,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790902550] [2025-02-06 10:02:32,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:32,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:02:32,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:32,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:02:32,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:02:32,308 INFO L87 Difference]: Start difference. First operand 417 states and 533 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:32,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:32,417 INFO L93 Difference]: Finished difference Result 383 states and 477 transitions. [2025-02-06 10:02:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:02:32,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-02-06 10:02:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:32,420 INFO L225 Difference]: With dead ends: 383 [2025-02-06 10:02:32,421 INFO L226 Difference]: Without dead ends: 383 [2025-02-06 10:02:32,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:02:32,422 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 32 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:32,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 619 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:02:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2025-02-06 10:02:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2025-02-06 10:02:32,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 375 states have (on average 1.2506666666666666) internal successors, (469), 377 states have internal predecessors, (469), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 10:02:32,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 477 transitions. [2025-02-06 10:02:32,434 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 477 transitions. Word has length 82 [2025-02-06 10:02:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:32,434 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 477 transitions. [2025-02-06 10:02:32,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:32,435 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 477 transitions. [2025-02-06 10:02:32,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-06 10:02:32,438 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:32,438 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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 10:02:32,449 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 10:02:32,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:32,642 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:32,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash -542981760, now seen corresponding path program 1 times [2025-02-06 10:02:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:32,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234967229] [2025-02-06 10:02:32,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:32,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:32,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:32,645 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:32,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 10:02:32,847 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-06 10:02:32,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 10:02:32,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:32,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:32,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 10:02:32,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 10:02:32,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:32,980 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:32,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234967229] [2025-02-06 10:02:32,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234967229] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:32,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:32,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 10:02:32,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426615010] [2025-02-06 10:02:32,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:32,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:02:32,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:32,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:02:32,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:02:32,983 INFO L87 Difference]: Start difference. First operand 383 states and 477 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:33,023 INFO L93 Difference]: Finished difference Result 386 states and 481 transitions. [2025-02-06 10:02:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 10:02:33,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-02-06 10:02:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:33,026 INFO L225 Difference]: With dead ends: 386 [2025-02-06 10:02:33,026 INFO L226 Difference]: Without dead ends: 386 [2025-02-06 10:02:33,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:02:33,027 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:33,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 683 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:02:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-02-06 10:02:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2025-02-06 10:02:33,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 377 states have (on average 1.2519893899204244) internal successors, (472), 380 states have internal predecessors, (472), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 10:02:33,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 481 transitions. [2025-02-06 10:02:33,033 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 481 transitions. Word has length 82 [2025-02-06 10:02:33,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:33,033 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 481 transitions. [2025-02-06 10:02:33,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 481 transitions. [2025-02-06 10:02:33,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-06 10:02:33,034 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:33,036 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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 10:02:33,047 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 10:02:33,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:33,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:33,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:33,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1143835940, now seen corresponding path program 1 times [2025-02-06 10:02:33,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:33,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1657121718] [2025-02-06 10:02:33,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:33,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:33,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:33,245 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:33,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 10:02:33,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 10:02:33,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 10:02:33,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:33,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:33,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 10:02:33,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:33,598 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:33,598 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:33,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2025-02-06 10:02:33,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:02:33,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2025-02-06 10:02:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 10:02:33,666 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:33,666 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:33,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657121718] [2025-02-06 10:02:33,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657121718] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:33,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:33,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 10:02:33,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63258009] [2025-02-06 10:02:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:33,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:02:33,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:33,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:02:33,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:02:33,668 INFO L87 Difference]: Start difference. First operand 386 states and 481 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:34,113 INFO L93 Difference]: Finished difference Result 529 states and 667 transitions. [2025-02-06 10:02:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 10:02:34,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-02-06 10:02:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:34,115 INFO L225 Difference]: With dead ends: 529 [2025-02-06 10:02:34,115 INFO L226 Difference]: Without dead ends: 529 [2025-02-06 10:02:34,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:02:34,116 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 203 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:34,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 673 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 10:02:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2025-02-06 10:02:34,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 388. [2025-02-06 10:02:34,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 379 states have (on average 1.2506596306068603) internal successors, (474), 382 states have internal predecessors, (474), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 10:02:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 483 transitions. [2025-02-06 10:02:34,123 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 483 transitions. Word has length 84 [2025-02-06 10:02:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:34,123 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 483 transitions. [2025-02-06 10:02:34,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 483 transitions. [2025-02-06 10:02:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 10:02:34,124 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:34,124 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 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 10:02:34,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 10:02:34,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:34,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:34,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:34,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1368969008, now seen corresponding path program 1 times [2025-02-06 10:02:34,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:34,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150194798] [2025-02-06 10:02:34,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:34,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:34,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:34,328 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:34,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 10:02:34,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 10:02:34,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 10:02:34,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:34,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:34,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 10:02:34,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 10:02:34,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:34,723 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:34,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150194798] [2025-02-06 10:02:34,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150194798] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:34,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:34,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 10:02:34,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071741934] [2025-02-06 10:02:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:34,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 10:02:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:34,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 10:02:34,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:02:34,725 INFO L87 Difference]: Start difference. First operand 388 states and 483 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:34,836 INFO L93 Difference]: Finished difference Result 448 states and 543 transitions. [2025-02-06 10:02:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 10:02:34,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 127 [2025-02-06 10:02:34,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:34,839 INFO L225 Difference]: With dead ends: 448 [2025-02-06 10:02:34,839 INFO L226 Difference]: Without dead ends: 448 [2025-02-06 10:02:34,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:02:34,840 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 8 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:34,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 409 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:02:34,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2025-02-06 10:02:34,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2025-02-06 10:02:34,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 439 states have (on average 1.216400911161731) internal successors, (534), 442 states have internal predecessors, (534), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 10:02:34,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 543 transitions. [2025-02-06 10:02:34,848 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 543 transitions. Word has length 127 [2025-02-06 10:02:34,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:34,848 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 543 transitions. [2025-02-06 10:02:34,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 543 transitions. [2025-02-06 10:02:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 10:02:34,850 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:34,850 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 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 10:02:34,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 10:02:35,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:35,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:35,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1114232463, now seen corresponding path program 1 times [2025-02-06 10:02:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083423074] [2025-02-06 10:02:35,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:35,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:35,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:35,058 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:35,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 10:02:35,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 10:02:35,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 10:02:35,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:35,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:35,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 10:02:35,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 10:02:35,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 10:02:35,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:35,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083423074] [2025-02-06 10:02:35,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083423074] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:02:35,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:02:35,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 10:02:35,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992538056] [2025-02-06 10:02:35,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:02:35,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 10:02:35,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:35,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 10:02:35,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 10:02:35,452 INFO L87 Difference]: Start difference. First operand 448 states and 543 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:35,543 INFO L93 Difference]: Finished difference Result 397 states and 459 transitions. [2025-02-06 10:02:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 10:02:35,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 127 [2025-02-06 10:02:35,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:35,545 INFO L225 Difference]: With dead ends: 397 [2025-02-06 10:02:35,545 INFO L226 Difference]: Without dead ends: 397 [2025-02-06 10:02:35,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 10:02:35,546 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 32 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:35,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 586 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:02:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2025-02-06 10:02:35,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2025-02-06 10:02:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 388 states have (on average 1.1597938144329898) internal successors, (450), 391 states have internal predecessors, (450), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 10:02:35,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 459 transitions. [2025-02-06 10:02:35,552 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 459 transitions. Word has length 127 [2025-02-06 10:02:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:35,553 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 459 transitions. [2025-02-06 10:02:35,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 10:02:35,553 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 459 transitions. [2025-02-06 10:02:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 10:02:35,555 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:35,555 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 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 10:02:35,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 10:02:35,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:35,759 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:35,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:35,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2045219274, now seen corresponding path program 1 times [2025-02-06 10:02:35,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:35,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112509621] [2025-02-06 10:02:35,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:02:35,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:35,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:35,763 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:35,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 10:02:36,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 10:02:36,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 10:02:36,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:02:36,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:36,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 10:02:36,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:02:36,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:02:36,313 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 10:02:36,313 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:36,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112509621] [2025-02-06 10:02:36,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112509621] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:02:36,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:02:36,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 10:02:36,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42691912] [2025-02-06 10:02:36,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:02:36,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 10:02:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:36,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 10:02:36,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 10:02:36,314 INFO L87 Difference]: Start difference. First operand 397 states and 459 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 10:02:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:36,447 INFO L93 Difference]: Finished difference Result 408 states and 476 transitions. [2025-02-06 10:02:36,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 10:02:36,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 127 [2025-02-06 10:02:36,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:36,449 INFO L225 Difference]: With dead ends: 408 [2025-02-06 10:02:36,449 INFO L226 Difference]: Without dead ends: 408 [2025-02-06 10:02:36,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 10:02:36,450 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 5 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:36,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 864 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:02:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2025-02-06 10:02:36,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 406. [2025-02-06 10:02:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 396 states have (on average 1.1717171717171717) internal successors, (464), 399 states have internal predecessors, (464), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-06 10:02:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 474 transitions. [2025-02-06 10:02:36,456 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 474 transitions. Word has length 127 [2025-02-06 10:02:36,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:36,456 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 474 transitions. [2025-02-06 10:02:36,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 10:02:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 474 transitions. [2025-02-06 10:02:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-02-06 10:02:36,457 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:36,457 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 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, 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, 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 10:02:36,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 10:02:36,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:36,661 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:36,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 507606022, now seen corresponding path program 2 times [2025-02-06 10:02:36,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240968847] [2025-02-06 10:02:36,662 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 10:02:36,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:36,666 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:36,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 10:02:36,930 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 131 statements into 2 equivalence classes. [2025-02-06 10:02:37,167 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 131 of 131 statements. [2025-02-06 10:02:37,167 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 10:02:37,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:37,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 10:02:37,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 10:02:37,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:02:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 10:02:37,406 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:37,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240968847] [2025-02-06 10:02:37,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240968847] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:02:37,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:02:37,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 10:02:37,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974381776] [2025-02-06 10:02:37,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:02:37,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 10:02:37,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:37,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 10:02:37,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 10:02:37,408 INFO L87 Difference]: Start difference. First operand 406 states and 474 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 10:02:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:02:37,634 INFO L93 Difference]: Finished difference Result 414 states and 484 transitions. [2025-02-06 10:02:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 10:02:37,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2025-02-06 10:02:37,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:02:37,636 INFO L225 Difference]: With dead ends: 414 [2025-02-06 10:02:37,636 INFO L226 Difference]: Without dead ends: 412 [2025-02-06 10:02:37,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-06 10:02:37,636 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 6 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:02:37,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 871 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:02:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2025-02-06 10:02:37,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2025-02-06 10:02:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 400 states have (on average 1.175) internal successors, (470), 403 states have internal predecessors, (470), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 10:02:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 479 transitions. [2025-02-06 10:02:37,644 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 479 transitions. Word has length 131 [2025-02-06 10:02:37,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:02:37,644 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 479 transitions. [2025-02-06 10:02:37,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 10:02:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 479 transitions. [2025-02-06 10:02:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 10:02:37,645 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:02:37,646 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 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, 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, 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 10:02:37,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-06 10:02:37,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:37,846 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:02:37,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:02:37,847 INFO L85 PathProgramCache]: Analyzing trace with hash -38371258, now seen corresponding path program 3 times [2025-02-06 10:02:37,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:02:37,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839007657] [2025-02-06 10:02:37,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 10:02:37,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:02:37,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:02:37,850 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:02:37,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 10:02:38,128 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 135 statements into 6 equivalence classes. [2025-02-06 10:02:38,288 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 118 of 135 statements. [2025-02-06 10:02:38,288 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 10:02:38,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:38,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 10:02:38,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:38,319 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:38,320 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:38,321 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:38,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 10:02:39,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:02:39,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 162 treesize of output 71 [2025-02-06 10:02:40,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:02:40,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 58 [2025-02-06 10:02:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-06 10:02:40,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:02:40,248 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:02:40,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839007657] [2025-02-06 10:02:40,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839007657] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:02:40,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [734182837] [2025-02-06 10:02:40,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 10:02:40,249 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 10:02:40,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 10:02:40,271 INFO L229 MonitoredProcess]: Starting monitored process 15 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 10:02:40,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2025-02-06 10:02:40,670 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 135 statements into 6 equivalence classes. [2025-02-06 10:02:41,040 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 118 of 135 statements. [2025-02-06 10:02:41,041 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 10:02:41,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:02:41,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 10:02:41,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:02:41,074 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:41,075 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:41,075 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:02:41,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2025-02-06 10:02:42,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:02:42,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 65 [2025-02-06 10:02:42,321 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:02:42,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 58 [2025-02-06 10:02:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-06 10:02:42,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:02:42,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [734182837] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:02:42,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 10:02:42,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2025-02-06 10:02:42,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241552167] [2025-02-06 10:02:42,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 10:02:42,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 10:02:42,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:02:42,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 10:02:42,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2025-02-06 10:02:42,494 INFO L87 Difference]: Start difference. First operand 410 states and 479 transitions. Second operand has 10 states, 10 states have (on average 18.4) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 10:02:46,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:02:50,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:02:54,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:02:58,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:02,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:07,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:11,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:15,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:19,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:23,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:27,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:31,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:36,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:40,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 10:03:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:03:40,226 INFO L93 Difference]: Finished difference Result 895 states and 1057 transitions. [2025-02-06 10:03:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 10:03:40,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.4) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2025-02-06 10:03:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:03:40,229 INFO L225 Difference]: With dead ends: 895 [2025-02-06 10:03:40,229 INFO L226 Difference]: Without dead ends: 895 [2025-02-06 10:03:40,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 395 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2025-02-06 10:03:40,230 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 459 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.6s IncrementalHoareTripleChecker+Time [2025-02-06 10:03:40,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1241 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 14 Unknown, 0 Unchecked, 57.6s Time] [2025-02-06 10:03:40,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2025-02-06 10:03:40,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 456. [2025-02-06 10:03:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 444 states have (on average 1.186936936936937) internal successors, (527), 447 states have internal predecessors, (527), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-02-06 10:03:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 538 transitions. [2025-02-06 10:03:40,238 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 538 transitions. Word has length 135 [2025-02-06 10:03:40,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:03:40,238 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 538 transitions. [2025-02-06 10:03:40,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.4) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 10:03:40,238 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 538 transitions. [2025-02-06 10:03:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-02-06 10:03:40,239 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:03:40,239 INFO L218 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 10:03:40,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2025-02-06 10:03:40,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 10:03:40,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:03:40,640 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 10:03:40,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:03:40,641 INFO L85 PathProgramCache]: Analyzing trace with hash -591779479, now seen corresponding path program 1 times [2025-02-06 10:03:40,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 10:03:40,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942466681] [2025-02-06 10:03:40,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:03:40,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 10:03:40,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:03:40,646 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 10:03:40,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 10:03:40,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-02-06 10:03:41,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-02-06 10:03:41,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:03:41,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:03:41,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 10:03:41,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:03:41,246 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:03:41,247 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:03:41,247 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 10:03:41,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 10:03:42,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:03:42,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 162 treesize of output 71 [2025-02-06 10:03:42,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:03:42,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 103 [2025-02-06 10:03:43,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 10:03:43,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 203 treesize of output 163 [2025-02-06 10:03:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-06 10:03:43,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:03:43,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 10:03:43,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942466681] [2025-02-06 10:03:43,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942466681] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 10:03:43,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1966333537] [2025-02-06 10:03:43,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:03:43,632 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 10:03:43,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 10:03:43,635 INFO L229 MonitoredProcess]: Starting monitored process 17 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 10:03:43,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2025-02-06 10:03:44,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-02-06 10:03:44,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-02-06 10:03:44,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:03:44,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:03:44,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 10:03:44,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 10:03:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 77 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-02-06 10:03:44,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 10:03:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 39 proven. 58 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-06 10:03:45,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1966333537] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 10:03:45,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 10:03:45,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 24 [2025-02-06 10:03:45,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054946906] [2025-02-06 10:03:45,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 10:03:45,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 10:03:45,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 10:03:45,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 10:03:45,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2025-02-06 10:03:45,302 INFO L87 Difference]: Start difference. First operand 456 states and 538 transitions. Second operand has 24 states, 24 states have (on average 12.5) internal successors, (300), 24 states have internal predecessors, (300), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6)