./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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_test5-3.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 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:55:57,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:55:57,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 07:55:57,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:55:57,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:55:57,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:55:57,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:55:57,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:55:57,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:55:57,671 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:55:57,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:55:57,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:55:57,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:55:57,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:55:57,673 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:55:57,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:55:57,673 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:55:57,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:55:57,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:55:57,674 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:55:57,675 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:55:57,675 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:55:57,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:55:57,675 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:55:57,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:55:57,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:55:57,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:55:57,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:55:57,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 07:55:57,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 07:55:57,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:55:57,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:55:57,676 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:55:57,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:55:57,676 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 -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2025-02-08 07:55:57,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:55:57,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:55:57,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:55:57,922 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:55:57,922 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:55:57,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2025-02-08 07:55:59,067 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5638d7e79/c6b2f1cc0dec4586b3eade2ad74e41e1/FLAG5a8537f71 [2025-02-08 07:55:59,409 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:55:59,410 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2025-02-08 07:55:59,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5638d7e79/c6b2f1cc0dec4586b3eade2ad74e41e1/FLAG5a8537f71 [2025-02-08 07:55:59,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5638d7e79/c6b2f1cc0dec4586b3eade2ad74e41e1 [2025-02-08 07:55:59,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:55:59,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:55:59,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:55:59,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:55:59,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:55:59,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:55:59" (1/1) ... [2025-02-08 07:55:59,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a95b326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:55:59, skipping insertion in model container [2025-02-08 07:55:59,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:55:59" (1/1) ... [2025-02-08 07:55:59,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:55:59,799 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,816 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,818 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,820 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,856 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,858 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,859 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,862 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,879 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,880 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,882 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,883 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,884 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,885 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,885 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,889 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,889 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,891 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:55:59,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:55:59,910 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 07:55:59,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5134639d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:55:59, skipping insertion in model container [2025-02-08 07:55:59,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:55:59,911 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 07:55:59,914 INFO L158 Benchmark]: Toolchain (without parser) took 463.00ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 104.6MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:55:59,914 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 07:55:59,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.33ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 104.6MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:55:59,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.33ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 104.6MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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_test5-3.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 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:56:01,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:56:01,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 07:56:01,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:56:01,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:56:01,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:56:01,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:56:01,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:56:01,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:56:01,798 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:56:01,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:56:01,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:56:01,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:56:01,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:56:01,799 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:56:01,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:56:01,800 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 07:56:01,801 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 07:56:01,801 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:56:01,801 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:56:01,801 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:56:01,801 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:56:01,801 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:56:01,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:56:01,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:56:01,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:56:01,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:56:01,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:56:01,803 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 -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2025-02-08 07:56:02,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:56:02,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:56:02,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:56:02,068 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:56:02,069 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:56:02,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2025-02-08 07:56:03,233 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/191c8f541/9de06eb0cbbb47e2a4ff2fa2ad7326eb/FLAGaa52be447 [2025-02-08 07:56:03,499 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:56:03,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2025-02-08 07:56:03,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/191c8f541/9de06eb0cbbb47e2a4ff2fa2ad7326eb/FLAGaa52be447 [2025-02-08 07:56:03,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/191c8f541/9de06eb0cbbb47e2a4ff2fa2ad7326eb [2025-02-08 07:56:03,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:56:03,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:56:03,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:56:03,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:56:03,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:56:03,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:56:03" (1/1) ... [2025-02-08 07:56:03,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f327492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:03, skipping insertion in model container [2025-02-08 07:56:03,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:56:03" (1/1) ... [2025-02-08 07:56:03,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:56:03,873 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,902 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,905 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,910 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,919 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,945 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,946 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,948 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,951 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,974 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,974 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,976 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,976 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,977 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,979 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,983 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,984 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,984 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,987 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,989 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,990 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,991 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:03,993 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:56:04,010 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 07:56:04,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:56:04,053 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,066 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,067 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,072 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,074 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,087 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,088 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,088 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,102 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,103 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,106 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,106 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,108 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,114 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,114 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,115 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,115 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,117 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:56:04,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:56:04,126 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 07:56:04,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:56:04,253 INFO L204 MainTranslator]: Completed translation [2025-02-08 07:56:04,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04 WrapperNode [2025-02-08 07:56:04,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:56:04,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 07:56:04,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 07:56:04,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 07:56:04,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,314 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2025-02-08 07:56:04,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 07:56:04,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 07:56:04,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 07:56:04,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 07:56:04,321 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,338 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,436 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2025-02-08 07:56:04,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,486 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 07:56:04,531 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 07:56:04,531 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 07:56:04,532 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 07:56:04,533 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (1/1) ... [2025-02-08 07:56:04,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:56:04,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:04,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 07:56:04,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 07:56:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 07:56:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 07:56:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 07:56:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 07:56:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 07:56:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 07:56:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 07:56:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 07:56:04,575 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 07:56:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 07:56:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 07:56:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 07:56:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 07:56:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 07:56:04,785 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 07:56:04,787 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 07:56:08,283 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2025-02-08 07:56:08,406 INFO L? ?]: Removed 1904 outVars from TransFormulas that were not future-live. [2025-02-08 07:56:08,407 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 07:56:08,449 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 07:56:08,449 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 07:56:08,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:56:08 BoogieIcfgContainer [2025-02-08 07:56:08,449 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 07:56:08,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 07:56:08,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 07:56:08,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 07:56:08,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 07:56:03" (1/3) ... [2025-02-08 07:56:08,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75496c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:56:08, skipping insertion in model container [2025-02-08 07:56:08,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:56:04" (2/3) ... [2025-02-08 07:56:08,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75496c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:56:08, skipping insertion in model container [2025-02-08 07:56:08,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:56:08" (3/3) ... [2025-02-08 07:56:08,457 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-3.i [2025-02-08 07:56:08,467 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 07:56:08,469 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test5-3.i that has 6 procedures, 1845 locations, 1 initial locations, 58 loop locations, and 915 error locations. [2025-02-08 07:56:08,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 07:56:08,534 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;@787fface, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 07:56:08,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 915 error locations. [2025-02-08 07:56:08,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 1835 states, 908 states have (on average 2.2136563876651985) internal successors, (2010), 1824 states have internal predecessors, (2010), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-08 07:56:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:56:08,546 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:08,546 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:56:08,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:08,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:08,550 INFO L85 PathProgramCache]: Analyzing trace with hash 63814174, now seen corresponding path program 1 times [2025-02-08 07:56:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:08,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140126088] [2025-02-08 07:56:08,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:08,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:08,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:08,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:08,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 07:56:08,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:56:08,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:56:08,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:08,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:08,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 07:56:08,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:08,726 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:08,727 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:08,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140126088] [2025-02-08 07:56:08,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140126088] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:08,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:08,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:56:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515120624] [2025-02-08 07:56:08,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:08,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 07:56:08,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:08,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 07:56:08,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 07:56:08,750 INFO L87 Difference]: Start difference. First operand has 1835 states, 908 states have (on average 2.2136563876651985) internal successors, (2010), 1824 states have internal predecessors, (2010), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:08,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:08,818 INFO L93 Difference]: Finished difference Result 1815 states and 1915 transitions. [2025-02-08 07:56:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 07:56:08,820 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-08 07:56:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:08,831 INFO L225 Difference]: With dead ends: 1815 [2025-02-08 07:56:08,831 INFO L226 Difference]: Without dead ends: 1810 [2025-02-08 07:56:08,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 07:56:08,834 INFO L435 NwaCegarLoop]: 1915 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:08,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:56:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2025-02-08 07:56:08,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1810. [2025-02-08 07:56:08,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 897 states have (on average 2.1036789297658864) internal successors, (1887), 1800 states have internal predecessors, (1887), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 07:56:08,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 1906 transitions. [2025-02-08 07:56:08,897 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 1906 transitions. Word has length 4 [2025-02-08 07:56:08,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:08,898 INFO L471 AbstractCegarLoop]: Abstraction has 1810 states and 1906 transitions. [2025-02-08 07:56:08,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:08,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 1906 transitions. [2025-02-08 07:56:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:56:08,898 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:08,898 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:56:08,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 07:56:09,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:09,099 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:09,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:09,100 INFO L85 PathProgramCache]: Analyzing trace with hash 63814205, now seen corresponding path program 1 times [2025-02-08 07:56:09,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:09,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308166188] [2025-02-08 07:56:09,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:09,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:09,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:09,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:09,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 07:56:09,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:56:09,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:56:09,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:09,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:09,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:56:09,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:09,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-08 07:56:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:09,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:09,319 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:09,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308166188] [2025-02-08 07:56:09,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308166188] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:09,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:09,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:56:09,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786654935] [2025-02-08 07:56:09,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:09,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:56:09,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:09,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:56:09,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:09,321 INFO L87 Difference]: Start difference. First operand 1810 states and 1906 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:11,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:11,113 INFO L93 Difference]: Finished difference Result 1945 states and 2068 transitions. [2025-02-08 07:56:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:56:11,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 07:56:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:11,118 INFO L225 Difference]: With dead ends: 1945 [2025-02-08 07:56:11,118 INFO L226 Difference]: Without dead ends: 1945 [2025-02-08 07:56:11,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:11,119 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 1271 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:11,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 1740 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 07:56:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2025-02-08 07:56:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1718. [2025-02-08 07:56:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 897 states have (on average 2.001114827201784) internal successors, (1795), 1708 states have internal predecessors, (1795), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 07:56:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 1814 transitions. [2025-02-08 07:56:11,141 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 1814 transitions. Word has length 4 [2025-02-08 07:56:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:11,141 INFO L471 AbstractCegarLoop]: Abstraction has 1718 states and 1814 transitions. [2025-02-08 07:56:11,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:11,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 1814 transitions. [2025-02-08 07:56:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:56:11,141 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:11,141 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:56:11,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 07:56:11,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:11,342 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr913REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:11,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:11,342 INFO L85 PathProgramCache]: Analyzing trace with hash 63814206, now seen corresponding path program 1 times [2025-02-08 07:56:11,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:11,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268502839] [2025-02-08 07:56:11,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:11,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:11,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:11,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:11,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 07:56:11,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:56:11,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:56:11,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:11,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:11,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:56:11,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:11,483 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 [2025-02-08 07:56:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:11,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:11,499 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:11,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268502839] [2025-02-08 07:56:11,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268502839] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:11,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:11,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:56:11,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243350246] [2025-02-08 07:56:11,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:11,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:56:11,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:11,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:56:11,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:11,500 INFO L87 Difference]: Start difference. First operand 1718 states and 1814 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:14,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:14,006 INFO L93 Difference]: Finished difference Result 2268 states and 2410 transitions. [2025-02-08 07:56:14,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:56:14,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 07:56:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:14,012 INFO L225 Difference]: With dead ends: 2268 [2025-02-08 07:56:14,012 INFO L226 Difference]: Without dead ends: 2268 [2025-02-08 07:56:14,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:14,013 INFO L435 NwaCegarLoop]: 1730 mSDtfsCounter, 773 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:14,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 2541 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 07:56:14,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2025-02-08 07:56:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 1890. [2025-02-08 07:56:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1079 states have (on average 1.964782205746061) internal successors, (2120), 1880 states have internal predecessors, (2120), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 07:56:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2139 transitions. [2025-02-08 07:56:14,038 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2139 transitions. Word has length 4 [2025-02-08 07:56:14,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:14,038 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2139 transitions. [2025-02-08 07:56:14,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2139 transitions. [2025-02-08 07:56:14,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:56:14,039 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:14,039 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:56:14,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 07:56:14,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:14,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr292REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:14,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:14,246 INFO L85 PathProgramCache]: Analyzing trace with hash 62513376, now seen corresponding path program 1 times [2025-02-08 07:56:14,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:14,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003524108] [2025-02-08 07:56:14,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:14,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:14,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:14,250 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:14,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 07:56:14,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:56:14,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:56:14,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:14,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:14,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:56:14,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:14,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-08 07:56:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:14,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:14,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:14,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003524108] [2025-02-08 07:56:14,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003524108] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:14,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:14,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 07:56:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039101709] [2025-02-08 07:56:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:14,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:56:14,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:14,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:56:14,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:14,369 INFO L87 Difference]: Start difference. First operand 1890 states and 2139 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:16,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:16,610 INFO L93 Difference]: Finished difference Result 3391 states and 3862 transitions. [2025-02-08 07:56:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:56:16,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-08 07:56:16,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:16,617 INFO L225 Difference]: With dead ends: 3391 [2025-02-08 07:56:16,620 INFO L226 Difference]: Without dead ends: 3391 [2025-02-08 07:56:16,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:16,622 INFO L435 NwaCegarLoop]: 1259 mSDtfsCounter, 1600 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:16,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 2088 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-08 07:56:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2025-02-08 07:56:16,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 2428. [2025-02-08 07:56:16,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1618 states have (on average 1.927070457354759) internal successors, (3118), 2414 states have internal predecessors, (3118), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:16,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3145 transitions. [2025-02-08 07:56:16,708 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3145 transitions. Word has length 4 [2025-02-08 07:56:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:16,708 INFO L471 AbstractCegarLoop]: Abstraction has 2428 states and 3145 transitions. [2025-02-08 07:56:16,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:16,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3145 transitions. [2025-02-08 07:56:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:56:16,709 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:16,709 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:56:16,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 07:56:16,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:16,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr293REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:16,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:16,912 INFO L85 PathProgramCache]: Analyzing trace with hash 62513377, now seen corresponding path program 1 times [2025-02-08 07:56:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:16,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930861308] [2025-02-08 07:56:16,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:16,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:16,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:16,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:16,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 07:56:17,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:56:17,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:56:17,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:17,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:17,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 07:56:17,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:17,036 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:17,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930861308] [2025-02-08 07:56:17,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930861308] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:17,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:17,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:56:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331595663] [2025-02-08 07:56:17,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:17,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:56:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:17,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:56:17,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:17,038 INFO L87 Difference]: Start difference. First operand 2428 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:17,127 INFO L93 Difference]: Finished difference Result 4102 states and 5208 transitions. [2025-02-08 07:56:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:56:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-08 07:56:17,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:17,142 INFO L225 Difference]: With dead ends: 4102 [2025-02-08 07:56:17,142 INFO L226 Difference]: Without dead ends: 4102 [2025-02-08 07:56:17,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:17,144 INFO L435 NwaCegarLoop]: 2228 mSDtfsCounter, 1365 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 4020 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:17,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 4020 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:56:17,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2025-02-08 07:56:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 2430. [2025-02-08 07:56:17,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 1620 states have (on average 1.9253086419753087) internal successors, (3119), 2416 states have internal predecessors, (3119), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:17,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3146 transitions. [2025-02-08 07:56:17,181 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3146 transitions. Word has length 4 [2025-02-08 07:56:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:17,181 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3146 transitions. [2025-02-08 07:56:17,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3146 transitions. [2025-02-08 07:56:17,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 07:56:17,182 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:17,182 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:56:17,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 07:56:17,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:17,386 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr908REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:17,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:17,387 INFO L85 PathProgramCache]: Analyzing trace with hash -444248042, now seen corresponding path program 1 times [2025-02-08 07:56:17,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:17,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918488918] [2025-02-08 07:56:17,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:17,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:17,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:17,391 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:17,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 07:56:17,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 07:56:17,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 07:56:17,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:17,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:17,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:56:17,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:17,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:17,571 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:17,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918488918] [2025-02-08 07:56:17,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918488918] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:17,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:17,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:56:17,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118414757] [2025-02-08 07:56:17,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:17,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:56:17,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:17,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:56:17,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:56:17,574 INFO L87 Difference]: Start difference. First operand 2430 states and 3146 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) [2025-02-08 07:56:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:19,645 INFO L93 Difference]: Finished difference Result 2415 states and 3108 transitions. [2025-02-08 07:56:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:56:19,646 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 [2025-02-08 07:56:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:19,651 INFO L225 Difference]: With dead ends: 2415 [2025-02-08 07:56:19,652 INFO L226 Difference]: Without dead ends: 2415 [2025-02-08 07:56:19,652 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 [2025-02-08 07:56:19,652 INFO L435 NwaCegarLoop]: 1091 mSDtfsCounter, 1321 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:19,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2117 Invalid, 1921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 07:56:19,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2025-02-08 07:56:19,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2407. [2025-02-08 07:56:19,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 1620 states have (on average 1.8969135802469135) internal successors, (3073), 2393 states have internal predecessors, (3073), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3100 transitions. [2025-02-08 07:56:19,704 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3100 transitions. Word has length 10 [2025-02-08 07:56:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:19,704 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 3100 transitions. [2025-02-08 07:56:19,705 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) [2025-02-08 07:56:19,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3100 transitions. [2025-02-08 07:56:19,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 07:56:19,705 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:19,705 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:56:19,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 07:56:19,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:19,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr909REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:19,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash -444248041, now seen corresponding path program 1 times [2025-02-08 07:56:19,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433730804] [2025-02-08 07:56:19,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:19,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:19,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:19,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:19,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 07:56:20,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 07:56:20,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 07:56:20,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:20,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:20,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:56:20,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:20,059 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 [2025-02-08 07:56:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:20,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:20,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:20,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433730804] [2025-02-08 07:56:20,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433730804] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:20,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:20,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:56:20,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956777133] [2025-02-08 07:56:20,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:20,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:56:20,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:20,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:56:20,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:56:20,130 INFO L87 Difference]: Start difference. First operand 2407 states and 3100 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) [2025-02-08 07:56:23,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:23,172 INFO L93 Difference]: Finished difference Result 2927 states and 3539 transitions. [2025-02-08 07:56:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:56:23,172 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 [2025-02-08 07:56:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:23,178 INFO L225 Difference]: With dead ends: 2927 [2025-02-08 07:56:23,178 INFO L226 Difference]: Without dead ends: 2927 [2025-02-08 07:56:23,179 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 [2025-02-08 07:56:23,179 INFO L435 NwaCegarLoop]: 1453 mSDtfsCounter, 895 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 2034 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:23,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 3152 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2034 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-08 07:56:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2025-02-08 07:56:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2521. [2025-02-08 07:56:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1734 states have (on average 1.8517877739331026) internal successors, (3211), 2507 states have internal predecessors, (3211), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3238 transitions. [2025-02-08 07:56:23,207 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3238 transitions. Word has length 10 [2025-02-08 07:56:23,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:23,207 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 3238 transitions. [2025-02-08 07:56:23,207 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) [2025-02-08 07:56:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3238 transitions. [2025-02-08 07:56:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-02-08 07:56:23,209 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:23,209 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] [2025-02-08 07:56:23,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 07:56:23,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:23,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr909REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:23,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:23,410 INFO L85 PathProgramCache]: Analyzing trace with hash 643387419, now seen corresponding path program 1 times [2025-02-08 07:56:23,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:23,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145562620] [2025-02-08 07:56:23,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:23,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:23,412 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:23,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 07:56:23,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 07:56:23,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 07:56:23,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:23,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:23,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 07:56:23,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:23,610 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 [2025-02-08 07:56:23,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:23,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:56:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:24,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:24,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145562620] [2025-02-08 07:56:24,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145562620] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:56:24,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:56:24,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-08 07:56:24,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897587221] [2025-02-08 07:56:24,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:56:24,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:56:24,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:24,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:56:24,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:56:24,082 INFO L87 Difference]: Start difference. First operand 2521 states and 3238 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:32,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:32,789 INFO L93 Difference]: Finished difference Result 3335 states and 4109 transitions. [2025-02-08 07:56:32,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:56:32,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 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 29 [2025-02-08 07:56:32,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:32,798 INFO L225 Difference]: With dead ends: 3335 [2025-02-08 07:56:32,798 INFO L226 Difference]: Without dead ends: 3335 [2025-02-08 07:56:32,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-02-08 07:56:32,798 INFO L435 NwaCegarLoop]: 1454 mSDtfsCounter, 1500 mSDsluCounter, 4312 mSDsCounter, 0 mSdLazyCounter, 4720 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 5766 SdHoareTripleChecker+Invalid, 4748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:32,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 5766 Invalid, 4748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4720 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2025-02-08 07:56:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2025-02-08 07:56:32,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 2685. [2025-02-08 07:56:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 1898 states have (on average 1.8140147523709167) internal successors, (3443), 2671 states have internal predecessors, (3443), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3470 transitions. [2025-02-08 07:56:32,837 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3470 transitions. Word has length 29 [2025-02-08 07:56:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:32,837 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3470 transitions. [2025-02-08 07:56:32,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:32,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3470 transitions. [2025-02-08 07:56:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-08 07:56:32,838 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:32,838 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] [2025-02-08 07:56:32,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 07:56:33,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:33,039 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr856REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:33,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1532367938, now seen corresponding path program 1 times [2025-02-08 07:56:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931238437] [2025-02-08 07:56:33,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:33,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:33,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:33,042 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:33,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 07:56:33,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 07:56:33,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 07:56:33,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:33,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:33,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:56:33,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:33,333 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:33,333 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:33,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931238437] [2025-02-08 07:56:33,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931238437] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:33,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:33,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:56:33,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044663769] [2025-02-08 07:56:33,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:33,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:56:33,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:33,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:56:33,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:33,335 INFO L87 Difference]: Start difference. First operand 2685 states and 3470 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:33,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:33,479 INFO L93 Difference]: Finished difference Result 3281 states and 4161 transitions. [2025-02-08 07:56:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:56:33,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2025-02-08 07:56:33,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:33,488 INFO L225 Difference]: With dead ends: 3281 [2025-02-08 07:56:33,489 INFO L226 Difference]: Without dead ends: 3281 [2025-02-08 07:56:33,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:56:33,489 INFO L435 NwaCegarLoop]: 1852 mSDtfsCounter, 445 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:33,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 3565 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:56:33,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2025-02-08 07:56:33,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 2903. [2025-02-08 07:56:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2903 states, 2116 states have (on average 1.768431001890359) internal successors, (3742), 2889 states have internal predecessors, (3742), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2903 states to 2903 states and 3769 transitions. [2025-02-08 07:56:33,538 INFO L78 Accepts]: Start accepts. Automaton has 2903 states and 3769 transitions. Word has length 42 [2025-02-08 07:56:33,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:33,538 INFO L471 AbstractCegarLoop]: Abstraction has 2903 states and 3769 transitions. [2025-02-08 07:56:33,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2903 states and 3769 transitions. [2025-02-08 07:56:33,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-08 07:56:33,539 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:33,539 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] [2025-02-08 07:56:33,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 07:56:33,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:33,740 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr827REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:33,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:33,740 INFO L85 PathProgramCache]: Analyzing trace with hash 433611862, now seen corresponding path program 1 times [2025-02-08 07:56:33,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:33,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [415660647] [2025-02-08 07:56:33,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:33,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:33,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:33,744 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:33,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 07:56:33,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 07:56:33,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 07:56:33,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:33,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:33,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:56:33,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:33,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:33,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:33,948 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:33,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415660647] [2025-02-08 07:56:33,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415660647] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:33,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:33,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:56:33,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83797839] [2025-02-08 07:56:33,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:33,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:56:33,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:33,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:56:33,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:56:33,949 INFO L87 Difference]: Start difference. First operand 2903 states and 3769 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:34,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:34,009 INFO L93 Difference]: Finished difference Result 2448 states and 3115 transitions. [2025-02-08 07:56:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:56:34,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2025-02-08 07:56:34,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:34,014 INFO L225 Difference]: With dead ends: 2448 [2025-02-08 07:56:34,014 INFO L226 Difference]: Without dead ends: 2448 [2025-02-08 07:56:34,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:56:34,014 INFO L435 NwaCegarLoop]: 1719 mSDtfsCounter, 56 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:34,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 5084 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:56:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2025-02-08 07:56:34,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2445. [2025-02-08 07:56:34,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 1681 states have (on average 1.8352171326591316) internal successors, (3085), 2431 states have internal predecessors, (3085), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:34,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 3112 transitions. [2025-02-08 07:56:34,032 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 3112 transitions. Word has length 45 [2025-02-08 07:56:34,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:34,033 INFO L471 AbstractCegarLoop]: Abstraction has 2445 states and 3112 transitions. [2025-02-08 07:56:34,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 3112 transitions. [2025-02-08 07:56:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 07:56:34,033 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:34,033 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] [2025-02-08 07:56:34,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 07:56:34,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:34,234 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr827REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:34,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:34,234 INFO L85 PathProgramCache]: Analyzing trace with hash -383926754, now seen corresponding path program 1 times [2025-02-08 07:56:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:34,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320587953] [2025-02-08 07:56:34,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:34,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:34,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:34,238 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:34,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 07:56:34,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 07:56:34,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 07:56:34,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:34,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:34,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 07:56:34,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:34,452 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 [2025-02-08 07:56:34,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 07:56:34,716 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 [2025-02-08 07:56:34,727 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 07:56:34,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-08 07:56:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:34,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:34,732 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:34,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320587953] [2025-02-08 07:56:34,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320587953] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:34,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:34,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:56:34,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898847565] [2025-02-08 07:56:34,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:34,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:56:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:34,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:56:34,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:56:34,733 INFO L87 Difference]: Start difference. First operand 2445 states and 3112 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:37,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:37,492 INFO L93 Difference]: Finished difference Result 2361 states and 2992 transitions. [2025-02-08 07:56:37,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:56:37,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2025-02-08 07:56:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:37,496 INFO L225 Difference]: With dead ends: 2361 [2025-02-08 07:56:37,496 INFO L226 Difference]: Without dead ends: 2361 [2025-02-08 07:56:37,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:56:37,499 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 1210 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:37,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1758 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2358 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-08 07:56:37,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2025-02-08 07:56:37,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2001. [2025-02-08 07:56:37,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1321 states have (on average 1.740348221044663) internal successors, (2299), 1987 states have internal predecessors, (2299), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2326 transitions. [2025-02-08 07:56:37,526 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2326 transitions. Word has length 53 [2025-02-08 07:56:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:37,526 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 2326 transitions. [2025-02-08 07:56:37,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2326 transitions. [2025-02-08 07:56:37,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-08 07:56:37,537 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:37,537 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] [2025-02-08 07:56:37,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 07:56:37,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:37,737 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr820REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:37,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:37,738 INFO L85 PathProgramCache]: Analyzing trace with hash 290424193, now seen corresponding path program 1 times [2025-02-08 07:56:37,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:37,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991733003] [2025-02-08 07:56:37,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:37,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:37,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:37,740 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:37,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 07:56:37,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 07:56:37,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 07:56:37,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:37,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:37,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:56:37,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:37,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-08 07:56:37,964 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 [2025-02-08 07:56:37,995 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 [2025-02-08 07:56:38,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:38,003 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:38,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:38,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991733003] [2025-02-08 07:56:38,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991733003] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:38,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:38,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:56:38,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204716182] [2025-02-08 07:56:38,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:38,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:56:38,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:38,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:56:38,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:56:38,004 INFO L87 Difference]: Start difference. First operand 2001 states and 2326 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:40,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:40,380 INFO L93 Difference]: Finished difference Result 2000 states and 2324 transitions. [2025-02-08 07:56:40,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:56:40,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2025-02-08 07:56:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:40,390 INFO L225 Difference]: With dead ends: 2000 [2025-02-08 07:56:40,390 INFO L226 Difference]: Without dead ends: 2000 [2025-02-08 07:56:40,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:56:40,391 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 2 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:40,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4250 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-08 07:56:40,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2025-02-08 07:56:40,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 2000. [2025-02-08 07:56:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1321 states have (on average 1.7388342165026496) internal successors, (2297), 1986 states have internal predecessors, (2297), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:40,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2324 transitions. [2025-02-08 07:56:40,418 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2324 transitions. Word has length 58 [2025-02-08 07:56:40,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:40,419 INFO L471 AbstractCegarLoop]: Abstraction has 2000 states and 2324 transitions. [2025-02-08 07:56:40,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2324 transitions. [2025-02-08 07:56:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-08 07:56:40,423 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:40,423 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] [2025-02-08 07:56:40,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 07:56:40,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:40,624 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr821REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:40,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash 290424194, now seen corresponding path program 1 times [2025-02-08 07:56:40,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:40,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303528752] [2025-02-08 07:56:40,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:40,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:40,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:40,627 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:40,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 07:56:40,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 07:56:40,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 07:56:40,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:40,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:40,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 07:56:40,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:40,843 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 [2025-02-08 07:56:40,861 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 [2025-02-08 07:56:40,869 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 [2025-02-08 07:56:40,908 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 [2025-02-08 07:56:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:40,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:40,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:40,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303528752] [2025-02-08 07:56:40,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303528752] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:40,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:40,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:56:40,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772848559] [2025-02-08 07:56:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:40,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:56:40,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:40,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:56:40,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:56:40,920 INFO L87 Difference]: Start difference. First operand 2000 states and 2324 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:44,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:44,100 INFO L93 Difference]: Finished difference Result 1999 states and 2322 transitions. [2025-02-08 07:56:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:56:44,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2025-02-08 07:56:44,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:44,103 INFO L225 Difference]: With dead ends: 1999 [2025-02-08 07:56:44,103 INFO L226 Difference]: Without dead ends: 1999 [2025-02-08 07:56:44,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:56:44,104 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 1 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:44,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4296 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-02-08 07:56:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2025-02-08 07:56:44,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2025-02-08 07:56:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1319 states have (on average 1.7399545109931767) internal successors, (2295), 1985 states have internal predecessors, (2295), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:56:44,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2322 transitions. [2025-02-08 07:56:44,139 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2322 transitions. Word has length 58 [2025-02-08 07:56:44,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:44,139 INFO L471 AbstractCegarLoop]: Abstraction has 1999 states and 2322 transitions. [2025-02-08 07:56:44,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:56:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2322 transitions. [2025-02-08 07:56:44,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:56:44,140 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:44,140 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] [2025-02-08 07:56:44,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-08 07:56:44,340 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 [2025-02-08 07:56:44,341 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:44,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:44,341 INFO L85 PathProgramCache]: Analyzing trace with hash 788831966, now seen corresponding path program 1 times [2025-02-08 07:56:44,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:44,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135738090] [2025-02-08 07:56:44,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:44,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:44,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:44,345 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) [2025-02-08 07:56:44,345 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 [2025-02-08 07:56:44,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:56:44,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:56:44,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:44,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:44,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 07:56:44,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:44,552 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 [2025-02-08 07:56:44,595 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 [2025-02-08 07:56:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:44,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:44,604 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:44,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135738090] [2025-02-08 07:56:44,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135738090] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:44,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:44,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 07:56:44,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008863550] [2025-02-08 07:56:44,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:44,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 07:56:44,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:44,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 07:56:44,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 07:56:44,605 INFO L87 Difference]: Start difference. First operand 1999 states and 2322 transitions. Second operand has 7 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:56:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:47,349 INFO L93 Difference]: Finished difference Result 2017 states and 2353 transitions. [2025-02-08 07:56:47,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:56:47,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2025-02-08 07:56:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:47,355 INFO L225 Difference]: With dead ends: 2017 [2025-02-08 07:56:47,355 INFO L226 Difference]: Without dead ends: 2017 [2025-02-08 07:56:47,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-08 07:56:47,355 INFO L435 NwaCegarLoop]: 1629 mSDtfsCounter, 11 mSDsluCounter, 4375 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6004 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:47,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6004 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-08 07:56:47,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2025-02-08 07:56:47,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2008. [2025-02-08 07:56:47,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1327 states have (on average 1.7377543330821401) internal successors, (2306), 1992 states have internal predecessors, (2306), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (20), 12 states have call predecessors, (20), 10 states have call successors, (20) [2025-02-08 07:56:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2343 transitions. [2025-02-08 07:56:47,376 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2343 transitions. Word has length 66 [2025-02-08 07:56:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:47,376 INFO L471 AbstractCegarLoop]: Abstraction has 2008 states and 2343 transitions. [2025-02-08 07:56:47,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:56:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2343 transitions. [2025-02-08 07:56:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:56:47,377 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:47,377 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] [2025-02-08 07:56:47,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 07:56:47,577 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 [2025-02-08 07:56:47,577 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:47,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:47,578 INFO L85 PathProgramCache]: Analyzing trace with hash 788831967, now seen corresponding path program 1 times [2025-02-08 07:56:47,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:47,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066117196] [2025-02-08 07:56:47,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:47,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:47,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:47,580 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:56:47,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 07:56:47,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:56:47,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:56:47,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:47,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:47,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:56:47,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:47,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:56:47,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066117196] [2025-02-08 07:56:47,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066117196] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:56:47,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:56:47,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:56:47,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162055781] [2025-02-08 07:56:47,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:56:47,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:56:47,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:47,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:56:47,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:56:47,844 INFO L87 Difference]: Start difference. First operand 2008 states and 2343 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:56:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:47,887 INFO L93 Difference]: Finished difference Result 2002 states and 2327 transitions. [2025-02-08 07:56:47,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:56:47,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2025-02-08 07:56:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:47,892 INFO L225 Difference]: With dead ends: 2002 [2025-02-08 07:56:47,892 INFO L226 Difference]: Without dead ends: 2002 [2025-02-08 07:56:47,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:56:47,894 INFO L435 NwaCegarLoop]: 1644 mSDtfsCounter, 0 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4924 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:47,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4924 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:56:47,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2025-02-08 07:56:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 2002. [2025-02-08 07:56:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2002 states, 1321 states have (on average 1.7395912187736564) internal successors, (2298), 1988 states have internal predecessors, (2298), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:56:47,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2002 states to 2002 states and 2327 transitions. [2025-02-08 07:56:47,913 INFO L78 Accepts]: Start accepts. Automaton has 2002 states and 2327 transitions. Word has length 66 [2025-02-08 07:56:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:47,914 INFO L471 AbstractCegarLoop]: Abstraction has 2002 states and 2327 transitions. [2025-02-08 07:56:47,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:56:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2002 states and 2327 transitions. [2025-02-08 07:56:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-08 07:56:47,914 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:47,915 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] [2025-02-08 07:56:47,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-08 07:56:48,118 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 [2025-02-08 07:56:48,119 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:48,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:48,120 INFO L85 PathProgramCache]: Analyzing trace with hash 107166401, now seen corresponding path program 1 times [2025-02-08 07:56:48,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:48,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814200270] [2025-02-08 07:56:48,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:56:48,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:48,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:48,122 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) [2025-02-08 07:56:48,124 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 [2025-02-08 07:56:48,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-08 07:56:48,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 07:56:48,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:56:48,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:56:48,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:56:48,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:56:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:48,356 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:56:48,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:56:48,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:56:48,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814200270] [2025-02-08 07:56:48,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814200270] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:56:48,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:56:48,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 07:56:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334626769] [2025-02-08 07:56:48,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:56:48,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:56:48,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:56:48,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:56:48,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:56:48,402 INFO L87 Difference]: Start difference. First operand 2002 states and 2327 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:56:48,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:56:48,529 INFO L93 Difference]: Finished difference Result 2014 states and 2345 transitions. [2025-02-08 07:56:48,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 07:56:48,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2025-02-08 07:56:48,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:56:48,533 INFO L225 Difference]: With dead ends: 2014 [2025-02-08 07:56:48,533 INFO L226 Difference]: Without dead ends: 2014 [2025-02-08 07:56:48,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 07:56:48,534 INFO L435 NwaCegarLoop]: 1643 mSDtfsCounter, 8 mSDsluCounter, 4917 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6560 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:56:48,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6560 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:56:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2025-02-08 07:56:48,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2025-02-08 07:56:48,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 1330 states have (on average 1.7390977443609024) internal successors, (2313), 1997 states have internal predecessors, (2313), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:56:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2342 transitions. [2025-02-08 07:56:48,569 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2342 transitions. Word has length 67 [2025-02-08 07:56:48,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:56:48,570 INFO L471 AbstractCegarLoop]: Abstraction has 2012 states and 2342 transitions. [2025-02-08 07:56:48,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:56:48,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2342 transitions. [2025-02-08 07:56:48,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-08 07:56:48,570 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:56:48,570 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] [2025-02-08 07:56:48,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-08 07:56:48,771 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 [2025-02-08 07:56:48,771 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:56:48,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:56:48,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1606287262, now seen corresponding path program 2 times [2025-02-08 07:56:48,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:56:48,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748985853] [2025-02-08 07:56:48,773 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:56:48,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:56:48,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:56:48,778 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) [2025-02-08 07:56:48,779 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 [2025-02-08 07:56:48,935 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-02-08 07:57:25,013 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 07:57:25,014 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 07:57:25,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:57:25,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-08 07:57:25,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:57:25,099 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 07:57:25,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-08 07:57:25,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-08 07:57:25,216 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 07:57:25,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2025-02-08 07:57:25,243 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 33 treesize of output 15 [2025-02-08 07:57:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 07:57:25,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:57:25,312 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-02-08 07:57:25,313 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 25 treesize of output 24 [2025-02-08 07:57:25,319 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_955 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem32#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_955) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2025-02-08 07:57:25,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:57:25,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748985853] [2025-02-08 07:57:25,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748985853] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 07:57:25,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [397588054] [2025-02-08 07:57:25,321 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:57:25,322 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-08 07:57:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-08 07:57:25,324 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-08 07:57:25,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2025-02-08 07:57:25,568 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-02-08 07:57:26,234 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 07:57:26,235 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 07:57:26,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:57:26,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:57:26,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:57:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:57:26,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:57:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:57:26,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [397588054] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:57:26,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 07:57:26,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-02-08 07:57:26,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153837353] [2025-02-08 07:57:26,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 07:57:26,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 07:57:26,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:57:26,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 07:57:26,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2025-02-08 07:57:26,523 INFO L87 Difference]: Start difference. First operand 2012 states and 2342 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 23 states have internal predecessors, (134), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 07:57:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:57:34,210 INFO L93 Difference]: Finished difference Result 2028 states and 2366 transitions. [2025-02-08 07:57:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-02-08 07:57:34,211 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 23 states have internal predecessors, (134), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2025-02-08 07:57:34,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:57:34,216 INFO L225 Difference]: With dead ends: 2028 [2025-02-08 07:57:34,217 INFO L226 Difference]: Without dead ends: 2024 [2025-02-08 07:57:34,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756 [2025-02-08 07:57:34,218 INFO L435 NwaCegarLoop]: 1064 mSDtfsCounter, 1231 mSDsluCounter, 11182 mSDsCounter, 0 mSdLazyCounter, 8174 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 12246 SdHoareTripleChecker+Invalid, 8230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 8174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:57:34,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 12246 Invalid, 8230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 8174 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2025-02-08 07:57:34,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2025-02-08 07:57:34,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 2020. [2025-02-08 07:57:34,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1339 states have (on average 1.7348767737117252) internal successors, (2323), 2005 states have internal predecessors, (2323), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:57:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2352 transitions. [2025-02-08 07:57:34,233 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2352 transitions. Word has length 70 [2025-02-08 07:57:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:57:34,234 INFO L471 AbstractCegarLoop]: Abstraction has 2020 states and 2352 transitions. [2025-02-08 07:57:34,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 23 states have internal predecessors, (134), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 07:57:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2352 transitions. [2025-02-08 07:57:34,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 07:57:34,235 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:57:34,236 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:57:34,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2025-02-08 07:57:34,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-08 07:57:34,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:57:34,637 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:57:34,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:57:34,637 INFO L85 PathProgramCache]: Analyzing trace with hash 127540415, now seen corresponding path program 1 times [2025-02-08 07:57:34,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:57:34,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901597937] [2025-02-08 07:57:34,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:57:34,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:57:34,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:57:34,640 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) [2025-02-08 07:57:34,641 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 [2025-02-08 07:57:34,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 07:57:34,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 07:57:34,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:57:34,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:57:34,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 07:57:34,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:57:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:57:35,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:57:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:57:35,417 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:57:35,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901597937] [2025-02-08 07:57:35,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901597937] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:57:35,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:57:35,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-02-08 07:57:35,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444541594] [2025-02-08 07:57:35,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:57:35,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-08 07:57:35,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:57:35,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-08 07:57:35,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2025-02-08 07:57:35,418 INFO L87 Difference]: Start difference. First operand 2020 states and 2352 transitions. Second operand has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:57:36,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:57:36,658 INFO L93 Difference]: Finished difference Result 2044 states and 2391 transitions. [2025-02-08 07:57:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-08 07:57:36,659 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-02-08 07:57:36,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:57:36,662 INFO L225 Difference]: With dead ends: 2044 [2025-02-08 07:57:36,662 INFO L226 Difference]: Without dead ends: 2038 [2025-02-08 07:57:36,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2025-02-08 07:57:36,663 INFO L435 NwaCegarLoop]: 1643 mSDtfsCounter, 23 mSDsluCounter, 18028 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 19671 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 07:57:36,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 19671 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 07:57:36,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2025-02-08 07:57:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 2038. [2025-02-08 07:57:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 1357 states have (on average 1.728813559322034) internal successors, (2346), 2023 states have internal predecessors, (2346), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:57:36,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 2375 transitions. [2025-02-08 07:57:36,676 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 2375 transitions. Word has length 76 [2025-02-08 07:57:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:57:36,676 INFO L471 AbstractCegarLoop]: Abstraction has 2038 states and 2375 transitions. [2025-02-08 07:57:36,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:57:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 2375 transitions. [2025-02-08 07:57:36,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-08 07:57:36,677 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:57:36,677 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:57:36,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-08 07:57:36,877 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 [2025-02-08 07:57:36,878 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:57:36,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:57:36,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1911377663, now seen corresponding path program 2 times [2025-02-08 07:57:36,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:57:36,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393962455] [2025-02-08 07:57:36,879 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:57:36,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:57:36,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:57:36,881 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) [2025-02-08 07:57:36,888 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 [2025-02-08 07:57:37,069 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes.