./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:51:25,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:51:25,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:51:25,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:51:25,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:51:25,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:51:25,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:51:25,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:51:25,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:51:25,995 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:51:25,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:51:25,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:51:25,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:51:25,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:51:25,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:51:25,997 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:51:25,998 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:51:25,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:51:25,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:51:25,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:51:25,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:51:25,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:51:25,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:51:25,998 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:51:25,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:51:25,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:51:25,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:51:25,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:51:25,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:51:25,999 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 -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2025-02-06 09:51:26,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:51:26,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:51:26,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:51:26,228 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:51:26,228 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:51:26,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2025-02-06 09:51:27,372 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a1236b7c/c46b9a3d2d4047e089a4b8177b524ff9/FLAG845fb3c4a [2025-02-06 09:51:27,722 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:51:27,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2025-02-06 09:51:27,739 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a1236b7c/c46b9a3d2d4047e089a4b8177b524ff9/FLAG845fb3c4a [2025-02-06 09:51:27,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a1236b7c/c46b9a3d2d4047e089a4b8177b524ff9 [2025-02-06 09:51:27,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:51:27,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:51:27,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:51:27,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:51:27,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:51:27,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:51:27" (1/1) ... [2025-02-06 09:51:27,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6512a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:27, skipping insertion in model container [2025-02-06 09:51:27,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:51:27" (1/1) ... [2025-02-06 09:51:27,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:51:28,244 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 09:51:28,270 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 09:51:28,273 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 09:51:28,275 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 09:51:28,282 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 09:51:28,300 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 09:51:28,300 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 09:51:28,302 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 09:51:28,302 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 09:51:28,303 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 09:51:28,304 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 09:51:28,305 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 09:51:28,305 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 09:51:28,307 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 09:51:28,308 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 09:51:28,309 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 09:51:28,310 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 09:51:28,310 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 09:51:28,310 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 09:51:28,312 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 09:51:28,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:51:28,339 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 09:51:28,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65ee3002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:28, skipping insertion in model container [2025-02-06 09:51:28,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:51:28,340 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:51:28,341 INFO L158 Benchmark]: Toolchain (without parser) took 395.53ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 81.6MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:51:28,342 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:51:28,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.04ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 81.6MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:51:28,343 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.04ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 81.6MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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_JEN_test6-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:51:30,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:51:30,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:51:30,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:51:30,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:51:30,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:51:30,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:51:30,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:51:30,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:51:30,157 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:51:30,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:51:30,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:51:30,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:51:30,159 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:51:30,159 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:51:30,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:51:30,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:51:30,159 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:51:30,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:51:30,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:51:30,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:51:30,160 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:51:30,160 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:51:30,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:51:30,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:51:30,161 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 -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2025-02-06 09:51:30,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:51:30,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:51:30,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:51:30,399 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:51:30,399 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:51:30,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2025-02-06 09:51:31,601 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1865154f2/b803278620a14954a895b0d1e7c91e98/FLAGfef8cb61b [2025-02-06 09:51:31,878 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:51:31,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2025-02-06 09:51:31,897 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1865154f2/b803278620a14954a895b0d1e7c91e98/FLAGfef8cb61b [2025-02-06 09:51:31,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1865154f2/b803278620a14954a895b0d1e7c91e98 [2025-02-06 09:51:31,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:51:31,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:51:31,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:51:31,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:51:31,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:51:31,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:51:31" (1/1) ... [2025-02-06 09:51:31,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc2b83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:31, skipping insertion in model container [2025-02-06 09:51:31,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:51:31" (1/1) ... [2025-02-06 09:51:31,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:51:32,315 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 09:51:32,338 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 09:51:32,340 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 09:51:32,342 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 09:51:32,347 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 09:51:32,368 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 09:51:32,368 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 09:51:32,369 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 09:51:32,371 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 09:51:32,373 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 09:51:32,374 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 09:51:32,375 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 09:51:32,375 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 09:51:32,378 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 09:51:32,379 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 09:51:32,380 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 09:51:32,381 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 09:51:32,381 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 09:51:32,382 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 09:51:32,384 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 09:51:32,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:51:32,396 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:51:32,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:51:32,445 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 09:51:32,456 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 09:51:32,458 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 09:51:32,459 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 09:51:32,462 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 09:51:32,475 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 09:51:32,476 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 09:51:32,477 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 09:51:32,477 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 09:51:32,479 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 09:51:32,479 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 09:51:32,480 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 09:51:32,480 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 09:51:32,482 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 09:51:32,483 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:51:32,484 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 09:51:32,484 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 09:51:32,485 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 09:51:32,485 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 09:51:32,487 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 09:51:32,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:51:32,492 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:51:32,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:51:32,651 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:51:32,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32 WrapperNode [2025-02-06 09:51:32,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:51:32,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:51:32,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:51:32,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:51:32,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,757 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1181 [2025-02-06 09:51:32,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:51:32,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:51:32,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:51:32,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:51:32,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,858 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 270, 12, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 62 writes are split as follows [0, 57, 1, 4]. [2025-02-06 09:51:32,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,919 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:51:32,946 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:51:32,946 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:51:32,947 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:51:32,948 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (1/1) ... [2025-02-06 09:51:32,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:51:32,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:32,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:51:32,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 09:51:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 09:51:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-02-06 09:51:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 09:51:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-02-06 09:51:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-02-06 09:51:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-02-06 09:51:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:51:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:51:33,218 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:51:33,219 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:51:33,267 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-02-06 09:51:39,194 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-02-06 09:51:39,195 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-02-06 09:51:39,195 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: 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 09:51:39,272 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2025-02-06 09:51:39,272 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:51:39,285 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:51:39,286 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:51:39,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:51:39 BoogieIcfgContainer [2025-02-06 09:51:39,287 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:51:39,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:51:39,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:51:39,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:51:39,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:51:31" (1/3) ... [2025-02-06 09:51:39,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f6c84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:51:39, skipping insertion in model container [2025-02-06 09:51:39,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:51:32" (2/3) ... [2025-02-06 09:51:39,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f6c84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:51:39, skipping insertion in model container [2025-02-06 09:51:39,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:51:39" (3/3) ... [2025-02-06 09:51:39,295 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2025-02-06 09:51:39,304 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:51:39,306 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test6-2.i that has 6 procedures, 265 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2025-02-06 09:51:39,338 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:51:39,348 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;@b7faba7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:51:39,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:51:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 237 states have (on average 1.59915611814346) internal successors, (379), 243 states have internal predecessors, (379), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 09:51:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 09:51:39,360 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:39,360 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:39,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:39,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:39,364 INFO L85 PathProgramCache]: Analyzing trace with hash -464256712, now seen corresponding path program 1 times [2025-02-06 09:51:39,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:39,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333424829] [2025-02-06 09:51:39,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:39,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:39,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:51:39,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 09:51:39,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 09:51:39,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:39,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:39,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 09:51:39,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:39,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:51:39,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:39,562 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:39,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333424829] [2025-02-06 09:51:39,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333424829] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:39,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:39,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:51:39,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652561256] [2025-02-06 09:51:39,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:39,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:51:39,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:39,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:51:39,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:51:39,589 INFO L87 Difference]: Start difference. First operand has 265 states, 237 states have (on average 1.59915611814346) internal successors, (379), 243 states have internal predecessors, (379), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:39,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:39,611 INFO L93 Difference]: Finished difference Result 260 states and 338 transitions. [2025-02-06 09:51:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:51:39,612 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 09:51:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:39,617 INFO L225 Difference]: With dead ends: 260 [2025-02-06 09:51:39,617 INFO L226 Difference]: Without dead ends: 258 [2025-02-06 09:51:39,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:51:39,620 INFO L435 NwaCegarLoop]: 338 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, 338 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:51:39,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:51:39,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2025-02-06 09:51:39,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2025-02-06 09:51:39,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 233 states have (on average 1.296137339055794) internal successors, (302), 238 states have internal predecessors, (302), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 09:51:39,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 336 transitions. [2025-02-06 09:51:39,653 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 336 transitions. Word has length 10 [2025-02-06 09:51:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:39,653 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 336 transitions. [2025-02-06 09:51:39,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:39,653 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 336 transitions. [2025-02-06 09:51:39,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 09:51:39,654 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:39,654 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:39,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:51:39,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:39,855 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:39,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:39,855 INFO L85 PathProgramCache]: Analyzing trace with hash 972614967, now seen corresponding path program 1 times [2025-02-06 09:51:39,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:39,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461876661] [2025-02-06 09:51:39,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:39,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:39,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:39,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:39,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:51:39,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 09:51:40,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 09:51:40,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:40,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:40,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:51:40,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:40,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:51:40,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:40,089 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:40,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461876661] [2025-02-06 09:51:40,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461876661] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:40,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:40,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:51:40,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535491339] [2025-02-06 09:51:40,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:40,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:51:40,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:40,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:51:40,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:51:40,091 INFO L87 Difference]: Start difference. First operand 258 states and 336 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:42,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:51:43,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:43,853 INFO L93 Difference]: Finished difference Result 410 states and 537 transitions. [2025-02-06 09:51:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:51:43,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-06 09:51:43,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:43,856 INFO L225 Difference]: With dead ends: 410 [2025-02-06 09:51:43,856 INFO L226 Difference]: Without dead ends: 410 [2025-02-06 09:51:43,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 09:51:43,857 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 182 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2025-02-06 09:51:43,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 959 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2025-02-06 09:51:43,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2025-02-06 09:51:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 375. [2025-02-06 09:51:43,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 347 states have (on average 1.2997118155619596) internal successors, (451), 352 states have internal predecessors, (451), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 09:51:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 491 transitions. [2025-02-06 09:51:43,872 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 491 transitions. Word has length 12 [2025-02-06 09:51:43,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:43,873 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 491 transitions. [2025-02-06 09:51:43,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 491 transitions. [2025-02-06 09:51:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 09:51:43,873 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:43,873 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:43,880 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 09:51:44,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:44,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:44,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:44,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1755096854, now seen corresponding path program 1 times [2025-02-06 09:51:44,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454570816] [2025-02-06 09:51:44,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:44,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:44,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:44,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:44,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:51:44,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 09:51:44,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 09:51:44,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:44,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:44,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:51:44,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:44,249 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:51:44,249 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:51:44,250 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:51:44,255 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 09:51:44,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:51:44,303 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 09:51:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:51:44,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:44,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:44,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454570816] [2025-02-06 09:51:44,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454570816] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:44,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:44,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:51:44,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913754180] [2025-02-06 09:51:44,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:44,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:51:44,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:44,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:51:44,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:51:44,315 INFO L87 Difference]: Start difference. First operand 375 states and 491 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:44,717 INFO L93 Difference]: Finished difference Result 587 states and 776 transitions. [2025-02-06 09:51:44,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:51:44,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-06 09:51:44,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:44,720 INFO L225 Difference]: With dead ends: 587 [2025-02-06 09:51:44,721 INFO L226 Difference]: Without dead ends: 587 [2025-02-06 09:51:44,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 09:51:44,721 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 270 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 09:51:44,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 994 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 09:51:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2025-02-06 09:51:44,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 374. [2025-02-06 09:51:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 346 states have (on average 1.2976878612716762) internal successors, (449), 351 states have internal predecessors, (449), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 09:51:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 489 transitions. [2025-02-06 09:51:44,748 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 489 transitions. Word has length 15 [2025-02-06 09:51:44,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:44,748 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 489 transitions. [2025-02-06 09:51:44,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:44,749 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 489 transitions. [2025-02-06 09:51:44,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:51:44,749 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:44,749 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:44,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:51:44,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:44,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:44,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:44,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1333014218, now seen corresponding path program 1 times [2025-02-06 09:51:44,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:44,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125619627] [2025-02-06 09:51:44,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:44,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:44,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:44,956 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:44,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:51:45,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:51:45,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:51:45,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:45,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:45,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:51:45,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:51:45,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:45,196 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:45,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125619627] [2025-02-06 09:51:45,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125619627] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:45,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:45,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:51:45,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231798262] [2025-02-06 09:51:45,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:45,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:51:45,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:45,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:51:45,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:51:45,197 INFO L87 Difference]: Start difference. First operand 374 states and 489 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:45,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:45,292 INFO L93 Difference]: Finished difference Result 414 states and 529 transitions. [2025-02-06 09:51:45,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:51:45,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-02-06 09:51:45,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:45,294 INFO L225 Difference]: With dead ends: 414 [2025-02-06 09:51:45,294 INFO L226 Difference]: Without dead ends: 414 [2025-02-06 09:51:45,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 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 09:51:45,294 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 8 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 617 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 09:51:45,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 617 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:51:45,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2025-02-06 09:51:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2025-02-06 09:51:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 386 states have (on average 1.266839378238342) internal successors, (489), 391 states have internal predecessors, (489), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 09:51:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 529 transitions. [2025-02-06 09:51:45,304 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 529 transitions. Word has length 50 [2025-02-06 09:51:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:45,305 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 529 transitions. [2025-02-06 09:51:45,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 529 transitions. [2025-02-06 09:51:45,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:51:45,307 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:45,307 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:45,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:51:45,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:45,508 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:45,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:45,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1717188597, now seen corresponding path program 1 times [2025-02-06 09:51:45,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:45,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725192299] [2025-02-06 09:51:45,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:45,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:45,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:45,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:45,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:51:45,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:51:45,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:51:45,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:45,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:45,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:51:45,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:51:45,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:45,731 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:45,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725192299] [2025-02-06 09:51:45,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725192299] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:45,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:45,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:51:45,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772349139] [2025-02-06 09:51:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:45,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:51:45,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:45,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:51:45,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:51:45,732 INFO L87 Difference]: Start difference. First operand 414 states and 529 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:45,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:45,803 INFO L93 Difference]: Finished difference Result 380 states and 473 transitions. [2025-02-06 09:51:45,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:51:45,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-02-06 09:51:45,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:45,805 INFO L225 Difference]: With dead ends: 380 [2025-02-06 09:51:45,805 INFO L226 Difference]: Without dead ends: 380 [2025-02-06 09:51:45,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 09:51:45,805 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 32 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 898 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 09:51:45,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 898 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:51:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-02-06 09:51:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2025-02-06 09:51:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 352 states have (on average 1.2301136363636365) internal successors, (433), 357 states have internal predecessors, (433), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 09:51:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 473 transitions. [2025-02-06 09:51:45,812 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 473 transitions. Word has length 50 [2025-02-06 09:51:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:45,812 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 473 transitions. [2025-02-06 09:51:45,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 473 transitions. [2025-02-06 09:51:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:51:45,813 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:45,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:45,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 09:51:46,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:46,014 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:46,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:46,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1623376900, now seen corresponding path program 1 times [2025-02-06 09:51:46,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:46,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460894051] [2025-02-06 09:51:46,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:46,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:46,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:46,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:46,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 09:51:46,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:51:46,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:51:46,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:46,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:46,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 09:51:46,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:51:46,400 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:46,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:46,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460894051] [2025-02-06 09:51:46,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460894051] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:46,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:46,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 09:51:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61513624] [2025-02-06 09:51:46,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:46,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:51:46,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:46,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:51:46,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:51:46,403 INFO L87 Difference]: Start difference. First operand 380 states and 473 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:46,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:46,512 INFO L93 Difference]: Finished difference Result 390 states and 484 transitions. [2025-02-06 09:51:46,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 09:51:46,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-02-06 09:51:46,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:46,515 INFO L225 Difference]: With dead ends: 390 [2025-02-06 09:51:46,515 INFO L226 Difference]: Without dead ends: 390 [2025-02-06 09:51:46,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:51:46,516 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 8 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:51:46,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1898 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:51:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-02-06 09:51:46,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2025-02-06 09:51:46,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 358 states have (on average 1.2262569832402235) internal successors, (439), 364 states have internal predecessors, (439), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 09:51:46,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 483 transitions. [2025-02-06 09:51:46,525 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 483 transitions. Word has length 50 [2025-02-06 09:51:46,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:46,527 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 483 transitions. [2025-02-06 09:51:46,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:51:46,527 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 483 transitions. [2025-02-06 09:51:46,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-06 09:51:46,527 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:46,527 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] [2025-02-06 09:51:46,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:51:46,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:46,728 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:46,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:46,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2101141808, now seen corresponding path program 1 times [2025-02-06 09:51:46,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:46,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651030395] [2025-02-06 09:51:46,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:46,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:46,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:46,731 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:46,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 09:51:46,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 09:51:46,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 09:51:46,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:46,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:46,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:51:47,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:51:47,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:47,063 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:47,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651030395] [2025-02-06 09:51:47,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651030395] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:47,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:47,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:51:47,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211084448] [2025-02-06 09:51:47,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:47,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:51:47,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:47,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:51:47,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:51:47,065 INFO L87 Difference]: Start difference. First operand 389 states and 483 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 09:51:47,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:47,281 INFO L93 Difference]: Finished difference Result 1035 states and 1311 transitions. [2025-02-06 09:51:47,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:51:47,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2025-02-06 09:51:47,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:47,286 INFO L225 Difference]: With dead ends: 1035 [2025-02-06 09:51:47,286 INFO L226 Difference]: Without dead ends: 1035 [2025-02-06 09:51:47,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 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 09:51:47,288 INFO L435 NwaCegarLoop]: 708 mSDtfsCounter, 592 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:51:47,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1664 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:51:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2025-02-06 09:51:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 952. [2025-02-06 09:51:47,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 890 states have (on average 1.247191011235955) internal successors, (1110), 900 states have internal predecessors, (1110), 48 states have call successors, (48), 13 states have call predecessors, (48), 12 states have return successors, (47), 38 states have call predecessors, (47), 44 states have call successors, (47) [2025-02-06 09:51:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1205 transitions. [2025-02-06 09:51:47,318 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1205 transitions. Word has length 70 [2025-02-06 09:51:47,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:47,318 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1205 transitions. [2025-02-06 09:51:47,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 09:51:47,319 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1205 transitions. [2025-02-06 09:51:47,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-06 09:51:47,319 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:47,319 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:47,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 09:51:47,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:47,524 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:47,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:47,524 INFO L85 PathProgramCache]: Analyzing trace with hash 842738942, now seen corresponding path program 1 times [2025-02-06 09:51:47,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:47,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952750315] [2025-02-06 09:51:47,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:47,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:47,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:47,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:51:47,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 09:51:47,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-06 09:51:47,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-06 09:51:47,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:47,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:47,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:51:47,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 09:51:47,884 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:51:47,885 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952750315] [2025-02-06 09:51:47,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952750315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:51:47,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:51:47,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:51:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276497047] [2025-02-06 09:51:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:51:47,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:51:47,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:47,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:51:47,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:51:47,886 INFO L87 Difference]: Start difference. First operand 952 states and 1205 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:51:47,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:47,925 INFO L93 Difference]: Finished difference Result 964 states and 1220 transitions. [2025-02-06 09:51:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:51:47,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 96 [2025-02-06 09:51:47,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:47,929 INFO L225 Difference]: With dead ends: 964 [2025-02-06 09:51:47,929 INFO L226 Difference]: Without dead ends: 964 [2025-02-06 09:51:47,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 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 09:51:47,929 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 0 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:51:47,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 958 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:51:47,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2025-02-06 09:51:47,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 964. [2025-02-06 09:51:47,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 899 states have (on average 1.2480533926585096) internal successors, (1122), 912 states have internal predecessors, (1122), 48 states have call successors, (48), 13 states have call predecessors, (48), 15 states have return successors, (50), 38 states have call predecessors, (50), 44 states have call successors, (50) [2025-02-06 09:51:47,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1220 transitions. [2025-02-06 09:51:47,948 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1220 transitions. Word has length 96 [2025-02-06 09:51:47,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:47,948 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1220 transitions. [2025-02-06 09:51:47,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:51:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1220 transitions. [2025-02-06 09:51:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-06 09:51:47,949 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:47,949 INFO L218 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:47,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-06 09:51:48,150 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 09:51:48,150 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:48,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:48,151 INFO L85 PathProgramCache]: Analyzing trace with hash 606643968, now seen corresponding path program 1 times [2025-02-06 09:51:48,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:48,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980305155] [2025-02-06 09:51:48,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:51:48,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:48,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:48,153 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 09:51:48,154 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 09:51:48,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:51:48,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:51:48,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:51:48,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:51:48,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:51:48,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:51:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 09:51:48,547 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:51:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 09:51:48,656 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:51:48,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980305155] [2025-02-06 09:51:48,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980305155] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:51:48,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:51:48,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 09:51:48,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824461439] [2025-02-06 09:51:48,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:51:48,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:51:48,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:51:48,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:51:48,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:51:48,658 INFO L87 Difference]: Start difference. First operand 964 states and 1220 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-06 09:51:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:51:48,803 INFO L93 Difference]: Finished difference Result 1003 states and 1277 transitions. [2025-02-06 09:51:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:51:48,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 98 [2025-02-06 09:51:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:51:48,811 INFO L225 Difference]: With dead ends: 1003 [2025-02-06 09:51:48,811 INFO L226 Difference]: Without dead ends: 1003 [2025-02-06 09:51:48,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 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 09:51:48,812 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 4 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:51:48,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2220 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:51:48,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2025-02-06 09:51:48,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 994. [2025-02-06 09:51:48,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 926 states have (on average 1.2602591792656588) internal successors, (1167), 939 states have internal predecessors, (1167), 48 states have call successors, (48), 16 states have call predecessors, (48), 18 states have return successors, (53), 38 states have call predecessors, (53), 44 states have call successors, (53) [2025-02-06 09:51:48,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1268 transitions. [2025-02-06 09:51:48,828 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1268 transitions. Word has length 98 [2025-02-06 09:51:48,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:51:48,828 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1268 transitions. [2025-02-06 09:51:48,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-06 09:51:48,829 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1268 transitions. [2025-02-06 09:51:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-06 09:51:48,829 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:51:48,829 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 09:51:48,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 09:51:49,030 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 09:51:49,030 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:51:49,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:51:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1154572578, now seen corresponding path program 2 times [2025-02-06 09:51:49,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:51:49,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481407165] [2025-02-06 09:51:49,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:51:49,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:51:49,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:51:49,035 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 09:51:49,036 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 09:51:49,257 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-02-06 09:52:21,055 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 09:52:21,056 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:52:21,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:52:21,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 09:52:21,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:52:21,325 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 09:52:21,325 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:52:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-06 09:52:21,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:52:21,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481407165] [2025-02-06 09:52:21,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481407165] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:52:21,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:52:21,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2025-02-06 09:52:21,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047451642] [2025-02-06 09:52:21,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:52:21,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 09:52:21,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:52:21,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 09:52:21,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-02-06 09:52:21,512 INFO L87 Difference]: Start difference. First operand 994 states and 1268 transitions. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-06 09:52:23,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:52:23,293 INFO L93 Difference]: Finished difference Result 3842 states and 4937 transitions. [2025-02-06 09:52:23,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:52:23,293 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 102 [2025-02-06 09:52:23,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:52:23,307 INFO L225 Difference]: With dead ends: 3842 [2025-02-06 09:52:23,307 INFO L226 Difference]: Without dead ends: 3842 [2025-02-06 09:52:23,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-02-06 09:52:23,308 INFO L435 NwaCegarLoop]: 1138 mSDtfsCounter, 3846 mSDsluCounter, 7552 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3877 SdHoareTripleChecker+Valid, 8690 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-06 09:52:23,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3877 Valid, 8690 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-06 09:52:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2025-02-06 09:52:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 2873. [2025-02-06 09:52:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2699 states have (on average 1.2660244535012968) internal successors, (3417), 2729 states have internal predecessors, (3417), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (141), 104 states have call predecessors, (141), 126 states have call successors, (141) [2025-02-06 09:52:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 3688 transitions. [2025-02-06 09:52:23,359 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 3688 transitions. Word has length 102 [2025-02-06 09:52:23,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:52:23,359 INFO L471 AbstractCegarLoop]: Abstraction has 2873 states and 3688 transitions. [2025-02-06 09:52:23,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-06 09:52:23,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 3688 transitions. [2025-02-06 09:52:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-02-06 09:52:23,361 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:52:23,361 INFO L218 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:52:23,393 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 09:52:23,566 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 09:52:23,566 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:52:23,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:52:23,567 INFO L85 PathProgramCache]: Analyzing trace with hash 135861243, now seen corresponding path program 1 times [2025-02-06 09:52:23,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:52:23,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212748869] [2025-02-06 09:52:23,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:52:23,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:52:23,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:52:23,572 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 09:52:23,581 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 09:52:23,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-02-06 09:52:23,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-02-06 09:52:23,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:52:23,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:52:23,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:52:23,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:52:23,994 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:52:23,995 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:52:23,995 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:52:23,997 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 09:52:24,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:52:24,027 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 09:52:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-02-06 09:52:24,036 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:52:24,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:52:24,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212748869] [2025-02-06 09:52:24,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212748869] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:52:24,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:52:24,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:52:24,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990756243] [2025-02-06 09:52:24,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:52:24,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:52:24,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:52:24,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:52:24,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:52:24,038 INFO L87 Difference]: Start difference. First operand 2873 states and 3688 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:52:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:52:24,409 INFO L93 Difference]: Finished difference Result 3873 states and 5015 transitions. [2025-02-06 09:52:24,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:52:24,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2025-02-06 09:52:24,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:52:24,421 INFO L225 Difference]: With dead ends: 3873 [2025-02-06 09:52:24,421 INFO L226 Difference]: Without dead ends: 3873 [2025-02-06 09:52:24,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 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 09:52:24,421 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 213 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:52:24,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 901 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 09:52:24,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2025-02-06 09:52:24,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 2889. [2025-02-06 09:52:24,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2889 states, 2715 states have (on average 1.2644567219152854) internal successors, (3433), 2745 states have internal predecessors, (3433), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (141), 104 states have call predecessors, (141), 126 states have call successors, (141) [2025-02-06 09:52:24,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2889 states to 2889 states and 3704 transitions. [2025-02-06 09:52:24,474 INFO L78 Accepts]: Start accepts. Automaton has 2889 states and 3704 transitions. Word has length 110 [2025-02-06 09:52:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:52:24,474 INFO L471 AbstractCegarLoop]: Abstraction has 2889 states and 3704 transitions. [2025-02-06 09:52:24,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:52:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2889 states and 3704 transitions. [2025-02-06 09:52:24,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-02-06 09:52:24,475 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:52:24,475 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 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] [2025-02-06 09:52:24,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 09:52:24,676 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 09:52:24,676 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:52:24,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:52:24,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1300688532, now seen corresponding path program 1 times [2025-02-06 09:52:24,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:52:24,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577168063] [2025-02-06 09:52:24,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:52:24,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:52:24,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:52:24,680 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 09:52:24,682 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 09:52:24,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-06 09:52:25,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-06 09:52:25,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:52:25,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:52:25,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:52:25,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:52:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 09:52:25,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:52:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 09:52:25,373 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:52:25,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577168063] [2025-02-06 09:52:25,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577168063] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:52:25,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:52:25,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 09:52:25,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193610029] [2025-02-06 09:52:25,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:52:25,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:52:25,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:52:25,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:52:25,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:52:25,374 INFO L87 Difference]: Start difference. First operand 2889 states and 3704 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-02-06 09:52:25,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:52:25,614 INFO L93 Difference]: Finished difference Result 2949 states and 3776 transitions. [2025-02-06 09:52:25,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:52:25,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2025-02-06 09:52:25,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:52:25,622 INFO L225 Difference]: With dead ends: 2949 [2025-02-06 09:52:25,622 INFO L226 Difference]: Without dead ends: 2931 [2025-02-06 09:52:25,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 224 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 09:52:25,623 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 5 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:52:25,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1912 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:52:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2025-02-06 09:52:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 2913. [2025-02-06 09:52:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2739 states have (on average 1.2665206279664112) internal successors, (3469), 2769 states have internal predecessors, (3469), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (135), 104 states have call predecessors, (135), 126 states have call successors, (135) [2025-02-06 09:52:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 3734 transitions. [2025-02-06 09:52:25,666 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 3734 transitions. Word has length 117 [2025-02-06 09:52:25,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:52:25,666 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 3734 transitions. [2025-02-06 09:52:25,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-02-06 09:52:25,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 3734 transitions. [2025-02-06 09:52:25,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-02-06 09:52:25,667 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:52:25,667 INFO L218 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 3, 3, 3, 3, 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] [2025-02-06 09:52:25,683 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 09:52:25,871 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 09:52:25,872 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:52:25,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:52:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1118546732, now seen corresponding path program 2 times [2025-02-06 09:52:25,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:52:25,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178966397] [2025-02-06 09:52:25,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:52:25,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:52:25,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:52:25,879 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 09:52:25,885 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 09:52:26,183 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 121 statements into 2 equivalence classes.