./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 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_test6-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:21:19,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:21:19,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:21:20,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:21:20,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:21:20,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:21:20,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:21:20,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:21:20,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:21:20,035 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:21:20,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:21:20,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:21:20,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:21:20,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:21:20,037 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:21:20,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:21:20,037 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:21:20,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:21:20,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:21:20,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:21:20,038 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:21:20,038 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:21:20,038 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:21:20,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:21:20,038 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:21:20,039 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:21:20,039 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:21:20,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:21:20,039 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:21:20,039 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:21:20,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:21:20,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:21:20,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:21:20,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:21:20,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:21:20,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:21:20,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:21:20,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:21:20,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:21:20,041 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2025-01-10 00:21:20,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:21:20,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:21:20,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:21:20,366 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:21:20,366 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:21:20,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2025-01-10 00:21:21,713 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba1092f37/89bb1e78da36402899d693dcbee1802b/FLAG509404b49 [2025-01-10 00:21:22,057 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:21:22,058 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2025-01-10 00:21:22,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba1092f37/89bb1e78da36402899d693dcbee1802b/FLAG509404b49 [2025-01-10 00:21:22,097 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba1092f37/89bb1e78da36402899d693dcbee1802b [2025-01-10 00:21:22,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:21:22,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:21:22,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:21:22,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:21:22,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:21:22,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:21:22" (1/1) ... [2025-01-10 00:21:22,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cbbac62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:22, skipping insertion in model container [2025-01-10 00:21:22,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:21:22" (1/1) ... [2025-01-10 00:21:22,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:21:22,669 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,703 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,705 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,709 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,716 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,758 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,759 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,760 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,762 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,767 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,768 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,768 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,772 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:22,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:21:22,795 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) [2025-01-10 00:21:22,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@451addcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:22, skipping insertion in model container [2025-01-10 00:21:22,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:21:22,796 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-10 00:21:22,798 INFO L158 Benchmark]: Toolchain (without parser) took 693.89ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 83.7MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 00:21:22,801 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:21:22,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.96ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 83.7MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 00:21:22,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.96ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 83.7MB in the end (delta: 21.4MB). 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_test6-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:21:24,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:21:25,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:21:25,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:21:25,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:21:25,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:21:25,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:21:25,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:21:25,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:21:25,046 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:21:25,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:21:25,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:21:25,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:21:25,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:21:25,046 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:21:25,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:21:25,046 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:21:25,047 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:21:25,048 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:21:25,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:21:25,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:21:25,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:21:25,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:21:25,050 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:21:25,050 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:21:25,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:21:25,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:21:25,051 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:21:25,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:21:25,051 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2025-01-10 00:21:25,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:21:25,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:21:25,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:21:25,367 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:21:25,367 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:21:25,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2025-01-10 00:21:26,751 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1863e7b88/1fc021fc6d564bf2bcf1579390ed9aaa/FLAG7192a6f3e [2025-01-10 00:21:27,054 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:21:27,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2025-01-10 00:21:27,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1863e7b88/1fc021fc6d564bf2bcf1579390ed9aaa/FLAG7192a6f3e [2025-01-10 00:21:27,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1863e7b88/1fc021fc6d564bf2bcf1579390ed9aaa [2025-01-10 00:21:27,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:21:27,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:21:27,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:21:27,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:21:27,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:21:27,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:21:27" (1/1) ... [2025-01-10 00:21:27,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3648f543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:27, skipping insertion in model container [2025-01-10 00:21:27,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:21:27" (1/1) ... [2025-01-10 00:21:27,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:21:27,806 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,842 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,845 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,860 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,890 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,890 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,893 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,894 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,895 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,895 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,900 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:27,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:21:27,927 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-10 00:21:27,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:21:27,999 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,038 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,047 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,052 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,057 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,083 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,087 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,093 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,095 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,095 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,096 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,099 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:21:28,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:21:28,112 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:21:28,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:21:28,256 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:21:28,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28 WrapperNode [2025-01-10 00:21:28,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:21:28,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:21:28,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:21:28,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:21:28,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,390 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1033 [2025-01-10 00:21:28,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:21:28,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:21:28,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:21:28,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:21:28,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,412 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,494 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 220, 34]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 49, 4]. [2025-01-10 00:21:28,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,549 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:21:28,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:21:28,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:21:28,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:21:28,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (1/1) ... [2025-01-10 00:21:28,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:21:28,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:28,622 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) [2025-01-10 00:21:28,625 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 [2025-01-10 00:21:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-10 00:21:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-10 00:21:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-10 00:21:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-10 00:21:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-10 00:21:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-01-10 00:21:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:21:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:21:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:21:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-10 00:21:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:21:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:21:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:21:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:21:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-10 00:21:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:21:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:21:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:21:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-01-10 00:21:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-01-10 00:21:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 00:21:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-01-10 00:21:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-01-10 00:21:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-01-10 00:21:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:21:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:21:28,891 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:21:28,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:21:32,690 INFO L? ?]: Removed 1086 outVars from TransFormulas that were not future-live. [2025-01-10 00:21:32,691 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:21:32,731 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:21:32,731 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2025-01-10 00:21:32,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:21:32 BoogieIcfgContainer [2025-01-10 00:21:32,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:21:32,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:21:32,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:21:32,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:21:32,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:21:27" (1/3) ... [2025-01-10 00:21:32,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f39c562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:21:32, skipping insertion in model container [2025-01-10 00:21:32,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:21:28" (2/3) ... [2025-01-10 00:21:32,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f39c562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:21:32, skipping insertion in model container [2025-01-10 00:21:32,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:21:32" (3/3) ... [2025-01-10 00:21:32,741 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2025-01-10 00:21:32,754 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:21:32,755 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test6-1.i that has 6 procedures, 1083 locations, 1 initial locations, 36 loop locations, and 522 error locations. [2025-01-10 00:21:32,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:21:32,823 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;@5021af52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:21:32,823 INFO L334 AbstractCegarLoop]: Starting to check reachability of 522 error locations. [2025-01-10 00:21:32,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 538 states have (on average 2.193308550185874) internal successors, (1180), 1063 states have internal predecessors, (1180), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-10 00:21:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:21:32,839 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:32,839 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:21:32,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:32,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:32,845 INFO L85 PathProgramCache]: Analyzing trace with hash 85465, now seen corresponding path program 1 times [2025-01-10 00:21:32,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:32,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898093552] [2025-01-10 00:21:32,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:32,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:32,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:32,857 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) [2025-01-10 00:21:32,858 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 [2025-01-10 00:21:33,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:21:33,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:21:33,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:33,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:33,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:21:33,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:33,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-01-10 00:21:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:33,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:33,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:33,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898093552] [2025-01-10 00:21:33,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898093552] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:33,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:33,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:21:33,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548600494] [2025-01-10 00:21:33,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:33,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:21:33,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:33,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:21:33,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:21:33,167 INFO L87 Difference]: Start difference. First operand has 1083 states, 538 states have (on average 2.193308550185874) internal successors, (1180), 1063 states have internal predecessors, (1180), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:34,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:34,581 INFO L93 Difference]: Finished difference Result 1163 states and 1233 transitions. [2025-01-10 00:21:34,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:21:34,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:21:34,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:34,595 INFO L225 Difference]: With dead ends: 1163 [2025-01-10 00:21:34,595 INFO L226 Difference]: Without dead ends: 1161 [2025-01-10 00:21:34,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:21:34,599 INFO L435 NwaCegarLoop]: 794 mSDtfsCounter, 719 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:34,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1039 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-10 00:21:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2025-01-10 00:21:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1104. [2025-01-10 00:21:34,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 574 states have (on average 2.0609756097560976) internal successors, (1183), 1086 states have internal predecessors, (1183), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 00:21:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1213 transitions. [2025-01-10 00:21:34,711 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1213 transitions. Word has length 3 [2025-01-10 00:21:34,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:34,711 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1213 transitions. [2025-01-10 00:21:34,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1213 transitions. [2025-01-10 00:21:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:21:34,713 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:34,713 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:21:34,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:21:34,918 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 [2025-01-10 00:21:34,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:34,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash 85466, now seen corresponding path program 1 times [2025-01-10 00:21:34,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:34,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368129541] [2025-01-10 00:21:34,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:34,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:34,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:34,921 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) [2025-01-10 00:21:34,922 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 [2025-01-10 00:21:35,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:21:35,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:21:35,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:35,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:35,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:21:35,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:35,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:21:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:35,091 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:35,091 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:35,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368129541] [2025-01-10 00:21:35,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368129541] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:35,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:35,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:21:35,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892099239] [2025-01-10 00:21:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:35,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:21:35,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:35,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:21:35,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:21:35,093 INFO L87 Difference]: Start difference. First operand 1104 states and 1213 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:37,019 INFO L93 Difference]: Finished difference Result 1508 states and 1654 transitions. [2025-01-10 00:21:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:21:37,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:21:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:37,026 INFO L225 Difference]: With dead ends: 1508 [2025-01-10 00:21:37,026 INFO L226 Difference]: Without dead ends: 1508 [2025-01-10 00:21:37,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:21:37,028 INFO L435 NwaCegarLoop]: 934 mSDtfsCounter, 428 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:37,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1534 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-10 00:21:37,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2025-01-10 00:21:37,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1316. [2025-01-10 00:21:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 785 states have (on average 2.0471337579617837) internal successors, (1607), 1296 states have internal predecessors, (1607), 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) [2025-01-10 00:21:37,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1641 transitions. [2025-01-10 00:21:37,067 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1641 transitions. Word has length 3 [2025-01-10 00:21:37,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:37,067 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 1641 transitions. [2025-01-10 00:21:37,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:37,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1641 transitions. [2025-01-10 00:21:37,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:21:37,068 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:37,068 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:37,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 00:21:37,269 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 [2025-01-10 00:21:37,269 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:37,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:37,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1875000221, now seen corresponding path program 1 times [2025-01-10 00:21:37,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:37,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1253128095] [2025-01-10 00:21:37,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:37,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:37,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:37,276 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) [2025-01-10 00:21:37,277 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 [2025-01-10 00:21:37,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:21:37,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:21:37,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:37,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:37,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:21:37,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:37,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:21:37,504 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2025-01-10 00:21:37,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2025-01-10 00:21:37,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:37,621 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:37,621 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:37,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253128095] [2025-01-10 00:21:37,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253128095] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:37,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:37,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:21:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019323855] [2025-01-10 00:21:37,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:37,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:37,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:37,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:37,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:37,623 INFO L87 Difference]: Start difference. First operand 1316 states and 1641 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:41,996 INFO L93 Difference]: Finished difference Result 2198 states and 2399 transitions. [2025-01-10 00:21:41,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:21:41,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 00:21:41,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:42,004 INFO L225 Difference]: With dead ends: 2198 [2025-01-10 00:21:42,004 INFO L226 Difference]: Without dead ends: 2198 [2025-01-10 00:21:42,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:42,009 INFO L435 NwaCegarLoop]: 1051 mSDtfsCounter, 1149 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:42,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 2233 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-01-10 00:21:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2025-01-10 00:21:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1465. [2025-01-10 00:21:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 934 states have (on average 2.0278372591006426) internal successors, (1894), 1445 states have internal predecessors, (1894), 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) [2025-01-10 00:21:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1928 transitions. [2025-01-10 00:21:42,047 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1928 transitions. Word has length 9 [2025-01-10 00:21:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:42,048 INFO L471 AbstractCegarLoop]: Abstraction has 1465 states and 1928 transitions. [2025-01-10 00:21:42,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1928 transitions. [2025-01-10 00:21:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-10 00:21:42,049 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:42,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:42,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 00:21:42,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:42,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:42,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:42,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2004535318, now seen corresponding path program 1 times [2025-01-10 00:21:42,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:42,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041581138] [2025-01-10 00:21:42,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:42,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:42,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:42,258 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) [2025-01-10 00:21:42,260 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 [2025-01-10 00:21:42,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:21:42,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:21:42,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:42,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:42,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:21:42,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:42,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-01-10 00:21:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:42,447 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:42,447 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:42,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041581138] [2025-01-10 00:21:42,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041581138] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:42,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:42,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:21:42,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984763879] [2025-01-10 00:21:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:42,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:42,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:42,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:42,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:42,449 INFO L87 Difference]: Start difference. First operand 1465 states and 1928 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:44,491 INFO L93 Difference]: Finished difference Result 2011 states and 2702 transitions. [2025-01-10 00:21:44,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:21:44,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-10 00:21:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:44,498 INFO L225 Difference]: With dead ends: 2011 [2025-01-10 00:21:44,498 INFO L226 Difference]: Without dead ends: 2011 [2025-01-10 00:21:44,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:44,499 INFO L435 NwaCegarLoop]: 1013 mSDtfsCounter, 922 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:44,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 2089 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-10 00:21:44,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2025-01-10 00:21:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1420. [2025-01-10 00:21:44,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 934 states have (on average 1.9646680942184154) internal successors, (1835), 1400 states have internal predecessors, (1835), 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) [2025-01-10 00:21:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1869 transitions. [2025-01-10 00:21:44,532 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1869 transitions. Word has length 10 [2025-01-10 00:21:44,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:44,533 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1869 transitions. [2025-01-10 00:21:44,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:44,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1869 transitions. [2025-01-10 00:21:44,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-10 00:21:44,533 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:44,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:44,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 00:21:44,738 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 [2025-01-10 00:21:44,738 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:44,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2004535319, now seen corresponding path program 1 times [2025-01-10 00:21:44,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:44,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693751193] [2025-01-10 00:21:44,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:44,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:44,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:44,741 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) [2025-01-10 00:21:44,742 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 [2025-01-10 00:21:44,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:21:44,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:21:44,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:44,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:44,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:21:44,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:44,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:21:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:44,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:44,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:44,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693751193] [2025-01-10 00:21:44,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693751193] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:44,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:44,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:21:44,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852575888] [2025-01-10 00:21:44,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:44,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:44,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:44,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:44,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:44,932 INFO L87 Difference]: Start difference. First operand 1420 states and 1869 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:47,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:47,531 INFO L93 Difference]: Finished difference Result 2076 states and 2725 transitions. [2025-01-10 00:21:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:21:47,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-10 00:21:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:47,537 INFO L225 Difference]: With dead ends: 2076 [2025-01-10 00:21:47,537 INFO L226 Difference]: Without dead ends: 2076 [2025-01-10 00:21:47,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:47,539 INFO L435 NwaCegarLoop]: 1189 mSDtfsCounter, 703 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:47,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 2443 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-10 00:21:47,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2025-01-10 00:21:47,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 1412. [2025-01-10 00:21:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 936 states have (on average 1.936965811965812) internal successors, (1813), 1392 states have internal predecessors, (1813), 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) [2025-01-10 00:21:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1847 transitions. [2025-01-10 00:21:47,574 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1847 transitions. Word has length 10 [2025-01-10 00:21:47,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:47,575 INFO L471 AbstractCegarLoop]: Abstraction has 1412 states and 1847 transitions. [2025-01-10 00:21:47,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1847 transitions. [2025-01-10 00:21:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:21:47,575 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:47,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:47,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 00:21:47,776 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 [2025-01-10 00:21:47,776 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:47,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash 830970191, now seen corresponding path program 1 times [2025-01-10 00:21:47,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:47,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676301095] [2025-01-10 00:21:47,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:47,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:47,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:47,780 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) [2025-01-10 00:21:47,783 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 [2025-01-10 00:21:47,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:21:47,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:21:47,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:47,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:47,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:21:47,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:47,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:47,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:47,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676301095] [2025-01-10 00:21:47,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676301095] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:47,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:47,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:21:47,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325437438] [2025-01-10 00:21:47,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:47,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:47,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:47,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:47,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:47,994 INFO L87 Difference]: Start difference. First operand 1412 states and 1847 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2025-01-10 00:21:48,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:48,577 INFO L93 Difference]: Finished difference Result 1858 states and 2403 transitions. [2025-01-10 00:21:48,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:21:48,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13 [2025-01-10 00:21:48,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:48,583 INFO L225 Difference]: With dead ends: 1858 [2025-01-10 00:21:48,584 INFO L226 Difference]: Without dead ends: 1858 [2025-01-10 00:21:48,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:48,584 INFO L435 NwaCegarLoop]: 1153 mSDtfsCounter, 454 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:48,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 3189 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 00:21:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2025-01-10 00:21:48,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1666. [2025-01-10 00:21:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1190 states have (on average 1.9529411764705882) internal successors, (2324), 1646 states have internal predecessors, (2324), 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) [2025-01-10 00:21:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2358 transitions. [2025-01-10 00:21:48,616 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2358 transitions. Word has length 13 [2025-01-10 00:21:48,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:48,616 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2358 transitions. [2025-01-10 00:21:48,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2025-01-10 00:21:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2358 transitions. [2025-01-10 00:21:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:21:48,617 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:48,617 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:48,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 00:21:48,817 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 [2025-01-10 00:21:48,818 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:48,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash 115249104, now seen corresponding path program 1 times [2025-01-10 00:21:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:48,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961028569] [2025-01-10 00:21:48,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:48,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:48,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:48,821 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) [2025-01-10 00:21:48,824 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 [2025-01-10 00:21:48,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:21:48,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:21:48,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:48,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:48,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:21:48,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:49,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:49,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:49,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:49,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961028569] [2025-01-10 00:21:49,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961028569] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:49,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:49,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:21:49,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782162117] [2025-01-10 00:21:49,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:49,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:49,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:49,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:49,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:49,020 INFO L87 Difference]: Start difference. First operand 1666 states and 2358 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:50,516 INFO L93 Difference]: Finished difference Result 1712 states and 2305 transitions. [2025-01-10 00:21:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:21:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-10 00:21:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:50,521 INFO L225 Difference]: With dead ends: 1712 [2025-01-10 00:21:50,521 INFO L226 Difference]: Without dead ends: 1712 [2025-01-10 00:21:50,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:50,522 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 736 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:50,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1615 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-10 00:21:50,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2025-01-10 00:21:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1643. [2025-01-10 00:21:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1190 states have (on average 1.8756302521008403) internal successors, (2232), 1623 states have internal predecessors, (2232), 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) [2025-01-10 00:21:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2266 transitions. [2025-01-10 00:21:50,552 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2266 transitions. Word has length 13 [2025-01-10 00:21:50,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:50,552 INFO L471 AbstractCegarLoop]: Abstraction has 1643 states and 2266 transitions. [2025-01-10 00:21:50,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:50,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2266 transitions. [2025-01-10 00:21:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:21:50,553 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:50,553 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:50,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 00:21:50,758 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 [2025-01-10 00:21:50,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr323REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:50,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:50,758 INFO L85 PathProgramCache]: Analyzing trace with hash 115249105, now seen corresponding path program 1 times [2025-01-10 00:21:50,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:50,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679849239] [2025-01-10 00:21:50,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:50,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:50,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:50,761 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) [2025-01-10 00:21:50,761 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 [2025-01-10 00:21:50,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:21:50,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:21:50,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:50,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:50,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:21:50,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:50,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:21:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:50,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:50,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:50,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679849239] [2025-01-10 00:21:50,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679849239] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:50,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:50,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:21:50,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776307519] [2025-01-10 00:21:50,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:50,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:50,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:50,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:50,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:50,997 INFO L87 Difference]: Start difference. First operand 1643 states and 2266 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:53,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:53,064 INFO L93 Difference]: Finished difference Result 1768 states and 2204 transitions. [2025-01-10 00:21:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:21:53,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-10 00:21:53,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:53,068 INFO L225 Difference]: With dead ends: 1768 [2025-01-10 00:21:53,068 INFO L226 Difference]: Without dead ends: 1768 [2025-01-10 00:21:53,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:53,069 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 406 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:53,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 1944 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-10 00:21:53,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2025-01-10 00:21:53,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1592. [2025-01-10 00:21:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1139 states have (on average 1.8744512730465321) internal successors, (2135), 1572 states have internal predecessors, (2135), 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) [2025-01-10 00:21:53,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2169 transitions. [2025-01-10 00:21:53,094 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2169 transitions. Word has length 13 [2025-01-10 00:21:53,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:53,094 INFO L471 AbstractCegarLoop]: Abstraction has 1592 states and 2169 transitions. [2025-01-10 00:21:53,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:53,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2169 transitions. [2025-01-10 00:21:53,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 00:21:53,095 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:53,095 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:53,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-10 00:21:53,295 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 [2025-01-10 00:21:53,296 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr347REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:53,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:53,296 INFO L85 PathProgramCache]: Analyzing trace with hash -722189425, now seen corresponding path program 1 times [2025-01-10 00:21:53,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:53,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155662434] [2025-01-10 00:21:53,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:53,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:53,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:53,299 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) [2025-01-10 00:21:53,301 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 [2025-01-10 00:21:53,442 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 00:21:53,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 00:21:53,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:53,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:53,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:21:53,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:53,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:53,483 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:53,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155662434] [2025-01-10 00:21:53,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155662434] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:53,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:53,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:21:53,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992904059] [2025-01-10 00:21:53,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:53,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:53,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:53,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:53,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:53,484 INFO L87 Difference]: Start difference. First operand 1592 states and 2169 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:53,543 INFO L93 Difference]: Finished difference Result 1520 states and 2046 transitions. [2025-01-10 00:21:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:21:53,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-01-10 00:21:53,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:53,548 INFO L225 Difference]: With dead ends: 1520 [2025-01-10 00:21:53,548 INFO L226 Difference]: Without dead ends: 1520 [2025-01-10 00:21:53,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:53,549 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 45 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:53,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2878 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:21:53,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2025-01-10 00:21:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1520. [2025-01-10 00:21:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1086 states have (on average 1.852670349907919) internal successors, (2012), 1500 states have internal predecessors, (2012), 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) [2025-01-10 00:21:53,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2046 transitions. [2025-01-10 00:21:53,571 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2046 transitions. Word has length 14 [2025-01-10 00:21:53,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:53,571 INFO L471 AbstractCegarLoop]: Abstraction has 1520 states and 2046 transitions. [2025-01-10 00:21:53,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2046 transitions. [2025-01-10 00:21:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-10 00:21:53,573 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:53,573 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:53,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-10 00:21:53,773 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 [2025-01-10 00:21:53,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:53,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:53,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1465858338, now seen corresponding path program 1 times [2025-01-10 00:21:53,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:53,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1093710927] [2025-01-10 00:21:53,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:53,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:53,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:53,777 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) [2025-01-10 00:21:53,778 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 [2025-01-10 00:21:53,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 00:21:53,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 00:21:53,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:53,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:53,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:21:53,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:53,937 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:21:53,938 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:21:53,939 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:21:53,944 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 [2025-01-10 00:21:53,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:21:53,987 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 [2025-01-10 00:21:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:54,002 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:54,002 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:54,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093710927] [2025-01-10 00:21:54,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093710927] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:54,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:54,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:21:54,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975625603] [2025-01-10 00:21:54,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:54,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:54,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:54,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:54,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:54,003 INFO L87 Difference]: Start difference. First operand 1520 states and 2046 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-01-10 00:21:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:54,280 INFO L93 Difference]: Finished difference Result 2035 states and 2401 transitions. [2025-01-10 00:21:54,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:21:54,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 16 [2025-01-10 00:21:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:54,286 INFO L225 Difference]: With dead ends: 2035 [2025-01-10 00:21:54,287 INFO L226 Difference]: Without dead ends: 2035 [2025-01-10 00:21:54,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:54,287 INFO L435 NwaCegarLoop]: 1037 mSDtfsCounter, 858 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:54,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 3017 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 00:21:54,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2025-01-10 00:21:54,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1203. [2025-01-10 00:21:54,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 771 states have (on average 1.861219195849546) internal successors, (1435), 1185 states have internal predecessors, (1435), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 00:21:54,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1465 transitions. [2025-01-10 00:21:54,311 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1465 transitions. Word has length 16 [2025-01-10 00:21:54,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:54,311 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1465 transitions. [2025-01-10 00:21:54,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-01-10 00:21:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1465 transitions. [2025-01-10 00:21:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-10 00:21:54,313 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:54,313 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] [2025-01-10 00:21:54,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-10 00:21:54,513 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 [2025-01-10 00:21:54,514 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:54,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:54,514 INFO L85 PathProgramCache]: Analyzing trace with hash 418110114, now seen corresponding path program 1 times [2025-01-10 00:21:54,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:54,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726481353] [2025-01-10 00:21:54,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:54,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:54,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:54,517 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) [2025-01-10 00:21:54,519 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 [2025-01-10 00:21:54,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 00:21:54,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 00:21:54,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:54,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:54,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:21:54,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:54,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:54,754 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:54,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:54,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726481353] [2025-01-10 00:21:54,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726481353] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:54,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:54,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:21:54,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106765369] [2025-01-10 00:21:54,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:54,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:21:54,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:54,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:21:54,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:21:54,756 INFO L87 Difference]: Start difference. First operand 1203 states and 1465 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:56,272 INFO L93 Difference]: Finished difference Result 1583 states and 1940 transitions. [2025-01-10 00:21:56,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:21:56,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-01-10 00:21:56,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:56,276 INFO L225 Difference]: With dead ends: 1583 [2025-01-10 00:21:56,276 INFO L226 Difference]: Without dead ends: 1583 [2025-01-10 00:21:56,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:56,277 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 885 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:56,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1226 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-10 00:21:56,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2025-01-10 00:21:56,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1180. [2025-01-10 00:21:56,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 771 states have (on average 1.801556420233463) internal successors, (1389), 1162 states have internal predecessors, (1389), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 00:21:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1419 transitions. [2025-01-10 00:21:56,294 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1419 transitions. Word has length 20 [2025-01-10 00:21:56,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:56,295 INFO L471 AbstractCegarLoop]: Abstraction has 1180 states and 1419 transitions. [2025-01-10 00:21:56,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1419 transitions. [2025-01-10 00:21:56,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-10 00:21:56,296 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:56,296 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] [2025-01-10 00:21:56,308 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 [2025-01-10 00:21:56,500 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 [2025-01-10 00:21:56,500 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:56,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:56,501 INFO L85 PathProgramCache]: Analyzing trace with hash 418110115, now seen corresponding path program 1 times [2025-01-10 00:21:56,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:56,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867407084] [2025-01-10 00:21:56,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:56,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:56,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:56,503 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) [2025-01-10 00:21:56,504 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 [2025-01-10 00:21:56,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 00:21:56,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 00:21:56,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:56,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:56,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:21:56,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:21:56,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:21:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:21:56,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:21:56,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:21:56,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867407084] [2025-01-10 00:21:56,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867407084] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:21:56,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:21:56,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:21:56,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569433043] [2025-01-10 00:21:56,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:21:56,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:21:56,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:21:56,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:21:56,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:21:56,799 INFO L87 Difference]: Start difference. First operand 1180 states and 1419 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:21:59,532 INFO L93 Difference]: Finished difference Result 1824 states and 2186 transitions. [2025-01-10 00:21:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:21:59,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-01-10 00:21:59,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:21:59,537 INFO L225 Difference]: With dead ends: 1824 [2025-01-10 00:21:59,537 INFO L226 Difference]: Without dead ends: 1824 [2025-01-10 00:21:59,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:21:59,538 INFO L435 NwaCegarLoop]: 1129 mSDtfsCounter, 740 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:21:59,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 3015 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-01-10 00:21:59,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2025-01-10 00:21:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1294. [2025-01-10 00:21:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 885 states have (on average 1.7254237288135594) internal successors, (1527), 1276 states have internal predecessors, (1527), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 00:21:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1557 transitions. [2025-01-10 00:21:59,554 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1557 transitions. Word has length 20 [2025-01-10 00:21:59,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:21:59,555 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1557 transitions. [2025-01-10 00:21:59,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:21:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1557 transitions. [2025-01-10 00:21:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-01-10 00:21:59,556 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:21:59,556 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:21:59,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-10 00:21:59,756 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 [2025-01-10 00:21:59,756 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:21:59,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:21:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1774352497, now seen corresponding path program 1 times [2025-01-10 00:21:59,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:21:59,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870044943] [2025-01-10 00:21:59,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:21:59,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:21:59,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:21:59,759 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) [2025-01-10 00:21:59,760 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 [2025-01-10 00:21:59,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-10 00:21:59,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-10 00:21:59,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:21:59,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:21:59,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 00:22:00,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:00,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:22:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:00,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:22:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:00,811 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:00,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870044943] [2025-01-10 00:22:00,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870044943] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:22:00,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:22:00,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-01-10 00:22:00,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666515271] [2025-01-10 00:22:00,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:22:00,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 00:22:00,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:00,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 00:22:00,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-10 00:22:00,813 INFO L87 Difference]: Start difference. First operand 1294 states and 1557 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:22:08,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:08,797 INFO L93 Difference]: Finished difference Result 2180 states and 2676 transitions. [2025-01-10 00:22:08,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 00:22:08,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2025-01-10 00:22:08,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:08,803 INFO L225 Difference]: With dead ends: 2180 [2025-01-10 00:22:08,803 INFO L226 Difference]: Without dead ends: 2180 [2025-01-10 00:22:08,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2025-01-10 00:22:08,804 INFO L435 NwaCegarLoop]: 1182 mSDtfsCounter, 1287 mSDsluCounter, 4666 mSDsCounter, 0 mSdLazyCounter, 4539 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 5848 SdHoareTripleChecker+Invalid, 4566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 4539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:08,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 5848 Invalid, 4566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 4539 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2025-01-10 00:22:08,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2025-01-10 00:22:08,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 1458. [2025-01-10 00:22:08,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1049 states have (on average 1.676835081029552) internal successors, (1759), 1440 states have internal predecessors, (1759), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 00:22:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1789 transitions. [2025-01-10 00:22:08,827 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1789 transitions. Word has length 39 [2025-01-10 00:22:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:08,828 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1789 transitions. [2025-01-10 00:22:08,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:22:08,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1789 transitions. [2025-01-10 00:22:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-01-10 00:22:08,831 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:08,831 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, 1, 1, 1, 1, 1] [2025-01-10 00:22:08,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-10 00:22:09,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:09,032 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:09,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:09,033 INFO L85 PathProgramCache]: Analyzing trace with hash 815764365, now seen corresponding path program 1 times [2025-01-10 00:22:09,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:09,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296885680] [2025-01-10 00:22:09,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:09,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:09,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:09,035 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:09,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-10 00:22:09,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-10 00:22:09,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-10 00:22:09,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:09,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:09,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:22:09,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:09,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:09,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:09,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296885680] [2025-01-10 00:22:09,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296885680] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:09,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:09,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:22:09,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655879983] [2025-01-10 00:22:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:09,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:22:09,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:09,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:22:09,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:22:09,311 INFO L87 Difference]: Start difference. First operand 1458 states and 1789 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-01-10 00:22:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:09,397 INFO L93 Difference]: Finished difference Result 1147 states and 1353 transitions. [2025-01-10 00:22:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:22:09,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 55 [2025-01-10 00:22:09,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:09,406 INFO L225 Difference]: With dead ends: 1147 [2025-01-10 00:22:09,406 INFO L226 Difference]: Without dead ends: 1147 [2025-01-10 00:22:09,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:22:09,407 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 56 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:09,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2639 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:22:09,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2025-01-10 00:22:09,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1145. [2025-01-10 00:22:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 759 states have (on average 1.7404479578392622) internal successors, (1321), 1127 states have internal predecessors, (1321), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 00:22:09,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1351 transitions. [2025-01-10 00:22:09,423 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1351 transitions. Word has length 55 [2025-01-10 00:22:09,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:09,423 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1351 transitions. [2025-01-10 00:22:09,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-01-10 00:22:09,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1351 transitions. [2025-01-10 00:22:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-10 00:22:09,425 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:09,425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:09,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-10 00:22:09,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:09,630 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:09,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1321271719, now seen corresponding path program 1 times [2025-01-10 00:22:09,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:09,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530553038] [2025-01-10 00:22:09,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:09,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:09,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:09,633 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:09,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-10 00:22:09,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-10 00:22:09,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-10 00:22:09,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:09,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:09,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:22:09,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:09,929 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-01-10 00:22:09,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-01-10 00:22:09,967 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2025-01-10 00:22:09,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2025-01-10 00:22:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:10,276 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:10,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:10,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530553038] [2025-01-10 00:22:10,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530553038] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:10,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:10,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:22:10,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746190693] [2025-01-10 00:22:10,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:10,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:22:10,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:10,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:22:10,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:22:10,277 INFO L87 Difference]: Start difference. First operand 1145 states and 1351 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2025-01-10 00:22:12,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:12,408 INFO L93 Difference]: Finished difference Result 2066 states and 2457 transitions. [2025-01-10 00:22:12,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:22:12,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 63 [2025-01-10 00:22:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:12,413 INFO L225 Difference]: With dead ends: 2066 [2025-01-10 00:22:12,414 INFO L226 Difference]: Without dead ends: 2066 [2025-01-10 00:22:12,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:22:12,414 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 769 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:12,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 2102 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-10 00:22:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2025-01-10 00:22:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1592. [2025-01-10 00:22:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1191 states have (on average 1.7380352644836272) internal successors, (2070), 1562 states have internal predecessors, (2070), 29 states have call successors, (29), 9 states have call predecessors, (29), 7 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:22:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2124 transitions. [2025-01-10 00:22:12,435 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2124 transitions. Word has length 63 [2025-01-10 00:22:12,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:12,435 INFO L471 AbstractCegarLoop]: Abstraction has 1592 states and 2124 transitions. [2025-01-10 00:22:12,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2025-01-10 00:22:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2124 transitions. [2025-01-10 00:22:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-10 00:22:12,437 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:12,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:12,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-10 00:22:12,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:12,639 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:12,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:12,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1321271718, now seen corresponding path program 1 times [2025-01-10 00:22:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:12,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014819472] [2025-01-10 00:22:12,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:12,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:12,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:12,641 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:12,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-10 00:22:12,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-10 00:22:12,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-10 00:22:12,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:12,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:12,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-10 00:22:12,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:12,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:22:12,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-01-10 00:22:13,027 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-01-10 00:22:13,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2025-01-10 00:22:13,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:13,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:13,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:13,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014819472] [2025-01-10 00:22:13,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014819472] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:13,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:13,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:22:13,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124138211] [2025-01-10 00:22:13,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:13,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 00:22:13,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:13,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 00:22:13,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:22:13,554 INFO L87 Difference]: Start difference. First operand 1592 states and 2124 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-01-10 00:22:16,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:16,007 INFO L93 Difference]: Finished difference Result 1597 states and 2130 transitions. [2025-01-10 00:22:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:22:16,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 63 [2025-01-10 00:22:16,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:16,015 INFO L225 Difference]: With dead ends: 1597 [2025-01-10 00:22:16,016 INFO L226 Difference]: Without dead ends: 1597 [2025-01-10 00:22:16,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:22:16,016 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 79 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:16,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 2652 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-10 00:22:16,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2025-01-10 00:22:16,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1597. [2025-01-10 00:22:16,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1195 states have (on average 1.7355648535564854) internal successors, (2074), 1566 states have internal predecessors, (2074), 30 states have call successors, (30), 10 states have call predecessors, (30), 7 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-10 00:22:16,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2130 transitions. [2025-01-10 00:22:16,044 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2130 transitions. Word has length 63 [2025-01-10 00:22:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:16,044 INFO L471 AbstractCegarLoop]: Abstraction has 1597 states and 2130 transitions. [2025-01-10 00:22:16,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-01-10 00:22:16,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2130 transitions. [2025-01-10 00:22:16,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-01-10 00:22:16,045 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:16,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:16,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-10 00:22:16,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:16,246 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:16,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1071409701, now seen corresponding path program 1 times [2025-01-10 00:22:16,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:16,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842762372] [2025-01-10 00:22:16,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:16,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:16,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:16,249 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:16,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-10 00:22:16,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-10 00:22:16,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-10 00:22:16,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:16,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:16,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-10 00:22:16,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:16,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:16,616 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:16,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842762372] [2025-01-10 00:22:16,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842762372] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:16,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:16,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 00:22:16,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92766687] [2025-01-10 00:22:16,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:16,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:22:16,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:16,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:22:16,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:22:16,617 INFO L87 Difference]: Start difference. First operand 1597 states and 2130 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-01-10 00:22:16,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:16,694 INFO L93 Difference]: Finished difference Result 1605 states and 2138 transitions. [2025-01-10 00:22:16,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 00:22:16,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 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 71 [2025-01-10 00:22:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:16,698 INFO L225 Difference]: With dead ends: 1605 [2025-01-10 00:22:16,698 INFO L226 Difference]: Without dead ends: 1605 [2025-01-10 00:22:16,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-10 00:22:16,699 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 25 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:16,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5538 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:22:16,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2025-01-10 00:22:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1604. [2025-01-10 00:22:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1200 states have (on average 1.7325) internal successors, (2079), 1572 states have internal predecessors, (2079), 31 states have call successors, (31), 11 states have call predecessors, (31), 8 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:22:16,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2137 transitions. [2025-01-10 00:22:16,722 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2137 transitions. Word has length 71 [2025-01-10 00:22:16,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:16,722 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2137 transitions. [2025-01-10 00:22:16,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-01-10 00:22:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2137 transitions. [2025-01-10 00:22:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:22:16,723 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:16,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:16,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-10 00:22:16,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:16,924 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:16,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash 766601637, now seen corresponding path program 1 times [2025-01-10 00:22:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118785644] [2025-01-10 00:22:16,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:16,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:16,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:16,927 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:16,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-01-10 00:22:17,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:22:17,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:22:17,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:17,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:17,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:22:17,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:17,313 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-01-10 00:22:17,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-01-10 00:22:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:17,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:17,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:17,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118785644] [2025-01-10 00:22:17,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118785644] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:17,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:17,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:22:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394657944] [2025-01-10 00:22:17,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:17,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:22:17,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:17,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:22:17,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:22:17,318 INFO L87 Difference]: Start difference. First operand 1604 states and 2137 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:22:21,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-10 00:22:24,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:24,296 INFO L93 Difference]: Finished difference Result 1996 states and 2644 transitions. [2025-01-10 00:22:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:22:24,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2025-01-10 00:22:24,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:24,300 INFO L225 Difference]: With dead ends: 1996 [2025-01-10 00:22:24,300 INFO L226 Difference]: Without dead ends: 1996 [2025-01-10 00:22:24,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:22:24,301 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 759 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 27 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:24,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1599 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1562 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2025-01-10 00:22:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2025-01-10 00:22:24,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1601. [2025-01-10 00:22:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1200 states have (on average 1.7275) internal successors, (2073), 1569 states have internal predecessors, (2073), 31 states have call successors, (31), 11 states have call predecessors, (31), 8 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:22:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2131 transitions. [2025-01-10 00:22:24,340 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2131 transitions. Word has length 74 [2025-01-10 00:22:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:24,340 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2131 transitions. [2025-01-10 00:22:24,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:22:24,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2131 transitions. [2025-01-10 00:22:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:22:24,341 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:24,341 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:24,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-10 00:22:24,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:24,542 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:24,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:24,543 INFO L85 PathProgramCache]: Analyzing trace with hash 766601638, now seen corresponding path program 1 times [2025-01-10 00:22:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:24,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588050784] [2025-01-10 00:22:24,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:24,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:24,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:24,546 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:24,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-01-10 00:22:24,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:22:24,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:22:24,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:24,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:24,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-10 00:22:24,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:22:25,241 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2025-01-10 00:22:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:22:25,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-01-10 00:22:25,267 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:22:25,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-01-10 00:22:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:25,273 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:25,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:25,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588050784] [2025-01-10 00:22:25,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588050784] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:25,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:25,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:22:25,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886024821] [2025-01-10 00:22:25,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:25,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:22:25,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:25,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:22:25,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2025-01-10 00:22:25,274 INFO L87 Difference]: Start difference. First operand 1601 states and 2131 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:22:29,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:29,243 INFO L93 Difference]: Finished difference Result 2629 states and 3453 transitions. [2025-01-10 00:22:29,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:22:29,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2025-01-10 00:22:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:29,249 INFO L225 Difference]: With dead ends: 2629 [2025-01-10 00:22:29,249 INFO L226 Difference]: Without dead ends: 2629 [2025-01-10 00:22:29,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2025-01-10 00:22:29,250 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 1400 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 4410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1709 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:29,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2436 Invalid, 4410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2674 Invalid, 0 Unknown, 1709 Unchecked, 3.9s Time] [2025-01-10 00:22:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2025-01-10 00:22:29,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 1593. [2025-01-10 00:22:29,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1200 states have (on average 1.7141666666666666) internal successors, (2057), 1561 states have internal predecessors, (2057), 31 states have call successors, (31), 11 states have call predecessors, (31), 8 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:22:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2115 transitions. [2025-01-10 00:22:29,288 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2115 transitions. Word has length 74 [2025-01-10 00:22:29,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:29,288 INFO L471 AbstractCegarLoop]: Abstraction has 1593 states and 2115 transitions. [2025-01-10 00:22:29,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:22:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2115 transitions. [2025-01-10 00:22:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-01-10 00:22:29,291 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:29,292 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:29,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-10 00:22:29,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:29,492 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:29,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash -553492728, now seen corresponding path program 1 times [2025-01-10 00:22:29,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:29,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906079244] [2025-01-10 00:22:29,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:29,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:29,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:29,495 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:29,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-10 00:22:29,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-01-10 00:22:29,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-01-10 00:22:29,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:29,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:29,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:22:29,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:29,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-01-10 00:22:29,774 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 19 treesize of output 1 [2025-01-10 00:22:29,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-01-10 00:22:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:29,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:29,835 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:29,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906079244] [2025-01-10 00:22:29,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906079244] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:29,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:29,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 00:22:29,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926629127] [2025-01-10 00:22:29,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:29,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:22:29,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:29,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:22:29,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:22:29,837 INFO L87 Difference]: Start difference. First operand 1593 states and 2115 transitions. Second operand has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 00:22:32,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:32,378 INFO L93 Difference]: Finished difference Result 1608 states and 2131 transitions. [2025-01-10 00:22:32,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:22:32,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2025-01-10 00:22:32,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:32,381 INFO L225 Difference]: With dead ends: 1608 [2025-01-10 00:22:32,381 INFO L226 Difference]: Without dead ends: 1608 [2025-01-10 00:22:32,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-10 00:22:32,381 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 16 mSDsluCounter, 3026 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3924 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:32,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3924 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-10 00:22:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2025-01-10 00:22:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1607. [2025-01-10 00:22:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1212 states have (on average 1.7103960396039604) internal successors, (2073), 1573 states have internal predecessors, (2073), 31 states have call successors, (31), 13 states have call predecessors, (31), 10 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:22:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2131 transitions. [2025-01-10 00:22:32,406 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2131 transitions. Word has length 81 [2025-01-10 00:22:32,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:32,407 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2131 transitions. [2025-01-10 00:22:32,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 00:22:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2131 transitions. [2025-01-10 00:22:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-10 00:22:32,408 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:32,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:32,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-10 00:22:32,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:32,609 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:32,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:32,610 INFO L85 PathProgramCache]: Analyzing trace with hash 21594692, now seen corresponding path program 1 times [2025-01-10 00:22:32,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:32,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [488459881] [2025-01-10 00:22:32,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:32,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:32,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:32,614 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:32,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-01-10 00:22:32,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-10 00:22:32,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-10 00:22:32,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:32,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:32,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-10 00:22:32,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:32,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:22:32,950 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 13 treesize of output 9 [2025-01-10 00:22:32,958 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 19 treesize of output 1 [2025-01-10 00:22:32,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-01-10 00:22:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:33,073 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:33,073 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:33,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488459881] [2025-01-10 00:22:33,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488459881] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:33,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:33,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 00:22:33,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346144045] [2025-01-10 00:22:33,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:33,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 00:22:33,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:33,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 00:22:33,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-10 00:22:33,074 INFO L87 Difference]: Start difference. First operand 1607 states and 2131 transitions. Second operand has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:22:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:36,529 INFO L93 Difference]: Finished difference Result 1607 states and 2129 transitions. [2025-01-10 00:22:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:22:36,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2025-01-10 00:22:36,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:36,533 INFO L225 Difference]: With dead ends: 1607 [2025-01-10 00:22:36,533 INFO L226 Difference]: Without dead ends: 1607 [2025-01-10 00:22:36,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:22:36,533 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 13 mSDsluCounter, 3727 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4621 SdHoareTripleChecker+Invalid, 2625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:36,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4621 Invalid, 2625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-01-10 00:22:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2025-01-10 00:22:36,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1607. [2025-01-10 00:22:36,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1212 states have (on average 1.7087458745874586) internal successors, (2071), 1573 states have internal predecessors, (2071), 31 states have call successors, (31), 13 states have call predecessors, (31), 10 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:22:36,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2129 transitions. [2025-01-10 00:22:36,552 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2129 transitions. Word has length 82 [2025-01-10 00:22:36,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:36,553 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2129 transitions. [2025-01-10 00:22:36,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-10 00:22:36,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2129 transitions. [2025-01-10 00:22:36,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-10 00:22:36,553 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:36,553 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:36,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-01-10 00:22:36,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:36,754 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:36,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:36,754 INFO L85 PathProgramCache]: Analyzing trace with hash 605089873, now seen corresponding path program 1 times [2025-01-10 00:22:36,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:36,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563670454] [2025-01-10 00:22:36,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:36,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:36,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:36,757 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:36,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-01-10 00:22:36,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-10 00:22:37,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-10 00:22:37,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:37,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:37,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-10 00:22:37,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:37,033 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 19 treesize of output 1 [2025-01-10 00:22:37,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-01-10 00:22:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:37,120 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:37,120 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:37,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563670454] [2025-01-10 00:22:37,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563670454] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:37,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:37,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 00:22:37,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086466900] [2025-01-10 00:22:37,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:37,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:22:37,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:37,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:22:37,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:22:37,121 INFO L87 Difference]: Start difference. First operand 1607 states and 2129 transitions. Second operand has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 00:22:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:39,790 INFO L93 Difference]: Finished difference Result 1638 states and 2169 transitions. [2025-01-10 00:22:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:22:39,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 89 [2025-01-10 00:22:39,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:39,793 INFO L225 Difference]: With dead ends: 1638 [2025-01-10 00:22:39,793 INFO L226 Difference]: Without dead ends: 1638 [2025-01-10 00:22:39,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:22:39,795 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 43 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:39,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 4288 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-01-10 00:22:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2025-01-10 00:22:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1621. [2025-01-10 00:22:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1224 states have (on average 1.7050653594771241) internal successors, (2087), 1585 states have internal predecessors, (2087), 31 states have call successors, (31), 13 states have call predecessors, (31), 12 states have return successors, (29), 24 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:22:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2147 transitions. [2025-01-10 00:22:39,808 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2147 transitions. Word has length 89 [2025-01-10 00:22:39,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:39,809 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2147 transitions. [2025-01-10 00:22:39,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 00:22:39,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2147 transitions. [2025-01-10 00:22:39,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-10 00:22:39,809 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:39,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:39,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-10 00:22:40,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:40,010 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:40,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash 605089874, now seen corresponding path program 1 times [2025-01-10 00:22:40,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:40,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183439634] [2025-01-10 00:22:40,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:40,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:40,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:40,013 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:40,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-01-10 00:22:40,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-10 00:22:40,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-10 00:22:40,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:40,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:40,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:22:40,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:40,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:22:40,327 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:40,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183439634] [2025-01-10 00:22:40,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183439634] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:22:40,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:22:40,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 00:22:40,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078451872] [2025-01-10 00:22:40,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:22:40,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:22:40,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:40,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:22:40,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:22:40,328 INFO L87 Difference]: Start difference. First operand 1621 states and 2147 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-10 00:22:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:40,389 INFO L93 Difference]: Finished difference Result 1623 states and 2147 transitions. [2025-01-10 00:22:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:22:40,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2025-01-10 00:22:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:40,394 INFO L225 Difference]: With dead ends: 1623 [2025-01-10 00:22:40,395 INFO L226 Difference]: Without dead ends: 1617 [2025-01-10 00:22:40,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:22:40,397 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 3 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:40,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3596 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:22:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2025-01-10 00:22:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2025-01-10 00:22:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1220 states have (on average 1.705737704918033) internal successors, (2081), 1583 states have internal predecessors, (2081), 31 states have call successors, (31), 13 states have call predecessors, (31), 12 states have return successors, (29), 22 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:22:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2141 transitions. [2025-01-10 00:22:40,421 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2141 transitions. Word has length 89 [2025-01-10 00:22:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:40,421 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2141 transitions. [2025-01-10 00:22:40,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-10 00:22:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2141 transitions. [2025-01-10 00:22:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-01-10 00:22:40,422 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:40,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:40,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-01-10 00:22:40,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:40,623 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:40,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash -904672503, now seen corresponding path program 1 times [2025-01-10 00:22:40,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:40,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022854578] [2025-01-10 00:22:40,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:22:40,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:40,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:40,626 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:40,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-01-10 00:22:40,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-10 00:22:40,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-10 00:22:40,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:22:40,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:22:40,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:22:40,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:22:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:40,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:22:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:22:41,075 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:22:41,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022854578] [2025-01-10 00:22:41,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022854578] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:22:41,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:22:41,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-10 00:22:41,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359859488] [2025-01-10 00:22:41,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:22:41,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 00:22:41,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:22:41,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 00:22:41,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-01-10 00:22:41,076 INFO L87 Difference]: Start difference. First operand 1617 states and 2141 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-10 00:22:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:22:41,226 INFO L93 Difference]: Finished difference Result 1643 states and 2171 transitions. [2025-01-10 00:22:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 00:22:41,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2025-01-10 00:22:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:22:41,230 INFO L225 Difference]: With dead ends: 1643 [2025-01-10 00:22:41,230 INFO L226 Difference]: Without dead ends: 1631 [2025-01-10 00:22:41,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-01-10 00:22:41,231 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 22 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:22:41,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3601 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:22:41,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2025-01-10 00:22:41,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1625. [2025-01-10 00:22:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1228 states have (on average 1.7027687296416938) internal successors, (2091), 1591 states have internal predecessors, (2091), 31 states have call successors, (31), 13 states have call predecessors, (31), 12 states have return successors, (29), 22 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:22:41,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2151 transitions. [2025-01-10 00:22:41,249 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2151 transitions. Word has length 90 [2025-01-10 00:22:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:22:41,250 INFO L471 AbstractCegarLoop]: Abstraction has 1625 states and 2151 transitions. [2025-01-10 00:22:41,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-10 00:22:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2151 transitions. [2025-01-10 00:22:41,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-10 00:22:41,250 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:22:41,250 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:22:41,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-01-10 00:22:41,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:41,451 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2025-01-10 00:22:41,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:22:41,452 INFO L85 PathProgramCache]: Analyzing trace with hash -78782895, now seen corresponding path program 2 times [2025-01-10 00:22:41,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:22:41,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832280714] [2025-01-10 00:22:41,453 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:22:41,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:22:41,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:22:41,456 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:22:41,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-01-10 00:22:41,676 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 93 statements into 2 equivalence classes.