./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.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_FNV_test9-2.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 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:52:50,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:52:50,878 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 07:52:50,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:52:50,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:52:50,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:52:50,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:52:50,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:52:50,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:52:50,896 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:52:50,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:52:50,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:52:50,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:52:50,897 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:52:50,898 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:52:50,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:52:50,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:52:50,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:52:50,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 07:52:50,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 07:52:50,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:52:50,899 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:52:50,899 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:52:50,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:52:50,899 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 -> 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc [2025-02-08 07:52:51,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:52:51,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:52:51,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:52:51,135 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:52:51,136 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:52:51,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2025-02-08 07:52:52,413 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/63d8c746a/e85fdb63ec3a4a5b8ff8e16d6604ccaf/FLAG88cab3065 [2025-02-08 07:52:52,798 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:52:52,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2025-02-08 07:52:52,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/63d8c746a/e85fdb63ec3a4a5b8ff8e16d6604ccaf/FLAG88cab3065 [2025-02-08 07:52:52,990 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/63d8c746a/e85fdb63ec3a4a5b8ff8e16d6604ccaf [2025-02-08 07:52:52,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:52:52,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:52:52,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:52:52,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:52:52,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:52:52,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:52:52" (1/1) ... [2025-02-08 07:52:52,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a04334f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:52, skipping insertion in model container [2025-02-08 07:52:52,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:52:52" (1/1) ... [2025-02-08 07:52:53,038 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:52:53,534 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 07:52:53,551 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 07:52:53,554 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 07:52:53,558 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 07:52:53,562 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 07:52:53,590 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 07:52:53,590 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 07:52:53,592 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 07:52:53,593 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 07:52:53,594 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:53,596 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 07:52:53,598 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 07:52:53,598 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 07:52:53,599 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 07:52:53,601 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 07:52:53,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:52:53,613 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 07:52:53,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@19ffa38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:53, skipping insertion in model container [2025-02-08 07:52:53,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:52:53,615 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 07:52:53,616 INFO L158 Benchmark]: Toolchain (without parser) took 622.79ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 89.3MB in the end (delta: 30.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:52:53,617 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 07:52:53,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.20ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 89.3MB in the end (delta: 30.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:52:53,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.20ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 89.3MB in the end (delta: 30.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2239]: 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_FNV_test9-2.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 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:52:55,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:52:55,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 07:52:55,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:52:55,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:52:55,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:52:55,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:52:55,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:52:55,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:52:55,531 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:52:55,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:52:55,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:52:55,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:52:55,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:52:55,532 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:52:55,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:52:55,532 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:52:55,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:52:55,533 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:52:55,534 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:52:55,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 07:52:55,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:52:55,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:52:55,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:52:55,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:52:55,535 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 -> 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc [2025-02-08 07:52:55,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:52:55,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:52:55,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:52:55,789 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:52:55,790 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:52:55,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2025-02-08 07:52:57,067 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3f667c5fa/e55e02fa5fcf48918500b8bd92b8b361/FLAG461028af4 [2025-02-08 07:52:57,363 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:52:57,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2025-02-08 07:52:57,380 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3f667c5fa/e55e02fa5fcf48918500b8bd92b8b361/FLAG461028af4 [2025-02-08 07:52:57,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3f667c5fa/e55e02fa5fcf48918500b8bd92b8b361 [2025-02-08 07:52:57,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:52:57,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:52:57,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:52:57,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:52:57,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:52:57,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:52:57" (1/1) ... [2025-02-08 07:52:57,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fae9b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:57, skipping insertion in model container [2025-02-08 07:52:57,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:52:57" (1/1) ... [2025-02-08 07:52:57,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:52:58,102 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 07:52:58,134 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 07:52:58,136 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 07:52:58,143 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 07:52:58,147 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 07:52:58,169 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 07:52:58,169 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 07:52:58,170 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 07:52:58,170 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 07:52:58,171 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 07:52:58,173 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 07:52:58,174 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 07:52:58,174 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 07:52:58,175 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 07:52:58,177 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 07:52:58,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:52:58,189 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 07:52:58,200 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:52:58,276 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 07:52:58,288 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 07:52:58,290 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 07:52:58,292 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 07:52:58,296 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 07:52:58,331 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 07:52:58,332 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 07:52:58,333 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 07:52:58,334 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 07:52:58,335 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 07:52:58,335 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 07:52:58,336 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 07:52:58,336 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 07:52:58,337 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 07:52:58,339 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 07:52:58,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:52:58,345 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 07:52:58,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:52:58,445 INFO L204 MainTranslator]: Completed translation [2025-02-08 07:52:58,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58 WrapperNode [2025-02-08 07:52:58,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:52:58,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 07:52:58,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 07:52:58,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 07:52:58,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,549 INFO L138 Inliner]: procedures = 180, calls = 775, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3017 [2025-02-08 07:52:58,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 07:52:58,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 07:52:58,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 07:52:58,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 07:52:58,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,670 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 220, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-02-08 07:52:58,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,725 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 07:52:58,765 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 07:52:58,765 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 07:52:58,765 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 07:52:58,766 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (1/1) ... [2025-02-08 07:52:58,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:52:58,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:58,795 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 07:52:58,801 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 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 07:52:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 07:52:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 07:52:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 07:52:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 07:52:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 07:52:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 07:52:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 07:52:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 07:52:58,999 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 07:52:59,000 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 07:53:02,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2218: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 07:53:02,899 INFO L? ?]: Removed 1594 outVars from TransFormulas that were not future-live. [2025-02-08 07:53:02,900 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 07:53:02,933 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 07:53:02,933 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 07:53:02,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:53:02 BoogieIcfgContainer [2025-02-08 07:53:02,933 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 07:53:02,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 07:53:02,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 07:53:02,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 07:53:02,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 07:52:57" (1/3) ... [2025-02-08 07:53:02,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dd6b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:53:02, skipping insertion in model container [2025-02-08 07:53:02,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:58" (2/3) ... [2025-02-08 07:53:02,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dd6b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:53:02, skipping insertion in model container [2025-02-08 07:53:02,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:53:02" (3/3) ... [2025-02-08 07:53:02,946 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-2.i [2025-02-08 07:53:02,958 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 07:53:02,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test9-2.i that has 6 procedures, 2091 locations, 1 initial locations, 38 loop locations, and 529 error locations. [2025-02-08 07:53:03,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 07:53:03,018 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;@216b3e7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 07:53:03,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2025-02-08 07:53:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 2081 states, 1045 states have (on average 2.0976076555023924) internal successors, (2192), 2073 states have internal predecessors, (2192), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2025-02-08 07:53:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 07:53:03,027 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:03,028 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 07:53:03,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:03,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash 135487, now seen corresponding path program 1 times [2025-02-08 07:53:03,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:03,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371095195] [2025-02-08 07:53:03,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:03,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:03,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:03,042 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 07:53:03,046 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 07:53:03,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 07:53:03,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 07:53:03,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:03,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:03,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:53:03,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:03,177 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 07:53:03,190 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 07:53:03,190 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:03,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:03,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371095195] [2025-02-08 07:53:03,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371095195] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:03,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:03,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 07:53:03,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166310572] [2025-02-08 07:53:03,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:03,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:53:03,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:03,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:53:03,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:53:03,214 INFO L87 Difference]: Start difference. First operand has 2081 states, 1045 states have (on average 2.0976076555023924) internal successors, (2192), 2073 states have internal predecessors, (2192), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:53:05,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:05,140 INFO L93 Difference]: Finished difference Result 2248 states and 3314 transitions. [2025-02-08 07:53:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:53:05,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2025-02-08 07:53:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:05,157 INFO L225 Difference]: With dead ends: 2248 [2025-02-08 07:53:05,157 INFO L226 Difference]: Without dead ends: 2243 [2025-02-08 07:53:05,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:53:05,160 INFO L435 NwaCegarLoop]: 2647 mSDtfsCounter, 1982 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:05,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 2804 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 07:53:05,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2025-02-08 07:53:05,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2062. [2025-02-08 07:53:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1046 states have (on average 2.019120458891013) internal successors, (2112), 2055 states have internal predecessors, (2112), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2620 transitions. [2025-02-08 07:53:05,278 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2620 transitions. Word has length 2 [2025-02-08 07:53:05,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:05,278 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2620 transitions. [2025-02-08 07:53:05,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:53:05,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2620 transitions. [2025-02-08 07:53:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 07:53:05,279 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:05,279 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 07:53:05,287 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 07:53:05,480 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 07:53:05,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:05,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:05,482 INFO L85 PathProgramCache]: Analyzing trace with hash 135488, now seen corresponding path program 1 times [2025-02-08 07:53:05,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:05,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681346306] [2025-02-08 07:53:05,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:05,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:05,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:05,485 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 07:53:05,486 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 07:53:05,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 07:53:05,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 07:53:05,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:05,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:05,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:53:05,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:05,608 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 07:53:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:53:05,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:05,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:05,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681346306] [2025-02-08 07:53:05,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681346306] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:05,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 07:53:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070128656] [2025-02-08 07:53:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:05,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:53:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:05,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:53:05,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:53:05,619 INFO L87 Difference]: Start difference. First operand 2062 states and 2620 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:53:07,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:07,981 INFO L93 Difference]: Finished difference Result 3483 states and 4574 transitions. [2025-02-08 07:53:07,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:53:07,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2025-02-08 07:53:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:08,007 INFO L225 Difference]: With dead ends: 3483 [2025-02-08 07:53:08,008 INFO L226 Difference]: Without dead ends: 3483 [2025-02-08 07:53:08,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:53:08,008 INFO L435 NwaCegarLoop]: 2417 mSDtfsCounter, 1453 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:08,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 4010 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-08 07:53:08,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2025-02-08 07:53:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 2693. [2025-02-08 07:53:08,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 1678 states have (on average 1.9970202622169249) internal successors, (3351), 2686 states have internal predecessors, (3351), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3859 transitions. [2025-02-08 07:53:08,102 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3859 transitions. Word has length 2 [2025-02-08 07:53:08,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:08,102 INFO L471 AbstractCegarLoop]: Abstraction has 2693 states and 3859 transitions. [2025-02-08 07:53:08,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:53:08,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3859 transitions. [2025-02-08 07:53:08,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 07:53:08,103 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:08,103 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:08,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 07:53:08,304 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 07:53:08,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:08,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash 205750022, now seen corresponding path program 1 times [2025-02-08 07:53:08,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:08,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506592379] [2025-02-08 07:53:08,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:08,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:08,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:08,309 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 07:53:08,310 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 07:53:08,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 07:53:08,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 07:53:08,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:08,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:08,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:53:08,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:08,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 07:53:08,517 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2025-02-08 07:53:08,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2025-02-08 07:53:08,618 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 07:53:08,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:08,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:08,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506592379] [2025-02-08 07:53:08,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506592379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:08,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:08,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:53:08,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069400152] [2025-02-08 07:53:08,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:08,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:08,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:08,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:08,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:08,620 INFO L87 Difference]: Start difference. First operand 2693 states and 3859 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:53:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:14,299 INFO L93 Difference]: Finished difference Result 5193 states and 6833 transitions. [2025-02-08 07:53:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:53:14,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2025-02-08 07:53:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:14,312 INFO L225 Difference]: With dead ends: 5193 [2025-02-08 07:53:14,312 INFO L226 Difference]: Without dead ends: 5193 [2025-02-08 07:53:14,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:14,315 INFO L435 NwaCegarLoop]: 4043 mSDtfsCounter, 3203 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 3559 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3203 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:14,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3203 Valid, 7229 Invalid, 3570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3559 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2025-02-08 07:53:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5193 states. [2025-02-08 07:53:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5193 to 2844. [2025-02-08 07:53:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 1829 states have (on average 1.9901585565882995) internal successors, (3640), 2837 states have internal predecessors, (3640), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 4148 transitions. [2025-02-08 07:53:14,383 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 4148 transitions. Word has length 7 [2025-02-08 07:53:14,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:14,383 INFO L471 AbstractCegarLoop]: Abstraction has 2844 states and 4148 transitions. [2025-02-08 07:53:14,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:53:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 4148 transitions. [2025-02-08 07:53:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 07:53:14,384 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:14,384 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:14,394 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 07:53:14,584 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 07:53:14,585 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr520REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:14,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:14,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2083287509, now seen corresponding path program 1 times [2025-02-08 07:53:14,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:14,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636950482] [2025-02-08 07:53:14,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:14,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:14,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:14,590 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 07:53:14,591 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 07:53:14,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 07:53:14,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 07:53:14,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:14,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:14,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:53:14,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:14,687 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 07:53:14,699 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 07:53:14,700 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:14,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636950482] [2025-02-08 07:53:14,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636950482] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:14,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:14,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:53:14,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674112127] [2025-02-08 07:53:14,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:14,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:53:14,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:14,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:53:14,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:53:14,701 INFO L87 Difference]: Start difference. First operand 2844 states and 4148 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:16,500 INFO L93 Difference]: Finished difference Result 4017 states and 5832 transitions. [2025-02-08 07:53:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:53:16,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-08 07:53:16,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:16,509 INFO L225 Difference]: With dead ends: 4017 [2025-02-08 07:53:16,509 INFO L226 Difference]: Without dead ends: 4017 [2025-02-08 07:53:16,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 07:53:16,510 INFO L435 NwaCegarLoop]: 3899 mSDtfsCounter, 1772 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 5662 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:16,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 5662 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 07:53:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4017 states. [2025-02-08 07:53:16,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4017 to 2797. [2025-02-08 07:53:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1829 states have (on average 1.9584472389283762) internal successors, (3582), 2790 states have internal predecessors, (3582), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4090 transitions. [2025-02-08 07:53:16,557 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4090 transitions. Word has length 8 [2025-02-08 07:53:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:16,557 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 4090 transitions. [2025-02-08 07:53:16,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:16,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4090 transitions. [2025-02-08 07:53:16,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 07:53:16,558 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:16,558 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:16,568 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 07:53:16,759 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 07:53:16,759 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr521REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:16,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:16,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2083287510, now seen corresponding path program 1 times [2025-02-08 07:53:16,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:16,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379720117] [2025-02-08 07:53:16,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:16,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:16,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:16,763 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 07:53:16,764 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 07:53:16,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 07:53:16,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 07:53:16,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:16,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:16,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:53:16,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:16,886 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 07:53:16,913 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 07:53:16,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:16,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:16,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379720117] [2025-02-08 07:53:16,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379720117] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:16,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:16,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:53:16,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346156261] [2025-02-08 07:53:16,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:16,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:53:16,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:16,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:53:16,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:53:16,915 INFO L87 Difference]: Start difference. First operand 2797 states and 4090 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:18,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:18,891 INFO L93 Difference]: Finished difference Result 4735 states and 7150 transitions. [2025-02-08 07:53:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:53:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-08 07:53:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:18,901 INFO L225 Difference]: With dead ends: 4735 [2025-02-08 07:53:18,901 INFO L226 Difference]: Without dead ends: 4735 [2025-02-08 07:53:18,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 07:53:18,901 INFO L435 NwaCegarLoop]: 4074 mSDtfsCounter, 1522 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 6008 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:18,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 6008 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-08 07:53:18,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2025-02-08 07:53:18,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 2826. [2025-02-08 07:53:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 1868 states have (on average 1.947002141327623) internal successors, (3637), 2819 states have internal predecessors, (3637), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 4145 transitions. [2025-02-08 07:53:18,937 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 4145 transitions. Word has length 8 [2025-02-08 07:53:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:18,937 INFO L471 AbstractCegarLoop]: Abstraction has 2826 states and 4145 transitions. [2025-02-08 07:53:18,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:18,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 4145 transitions. [2025-02-08 07:53:18,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 07:53:18,938 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:18,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:18,945 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 07:53:19,140 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 07:53:19,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:19,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:19,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1902608430, now seen corresponding path program 1 times [2025-02-08 07:53:19,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:19,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339668620] [2025-02-08 07:53:19,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:19,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:19,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:19,143 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 07:53:19,144 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 07:53:19,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 07:53:19,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 07:53:19,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:19,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:19,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:53:19,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:19,291 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 07:53:19,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:19,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:19,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339668620] [2025-02-08 07:53:19,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339668620] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:19,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:19,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:53:19,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429419482] [2025-02-08 07:53:19,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:19,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:53:19,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:19,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:53:19,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:53:19,292 INFO L87 Difference]: Start difference. First operand 2826 states and 4145 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 07:53:19,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:19,475 INFO L93 Difference]: Finished difference Result 4077 states and 5792 transitions. [2025-02-08 07:53:19,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:53:19,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2025-02-08 07:53:19,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:19,486 INFO L225 Difference]: With dead ends: 4077 [2025-02-08 07:53:19,486 INFO L226 Difference]: Without dead ends: 4077 [2025-02-08 07:53:19,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 07:53:19,491 INFO L435 NwaCegarLoop]: 2624 mSDtfsCounter, 1472 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 5093 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:19,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 5093 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:53:19,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2025-02-08 07:53:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 3305. [2025-02-08 07:53:19,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 2347 states have (on average 1.952279505752024) internal successors, (4582), 3298 states have internal predecessors, (4582), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 5090 transitions. [2025-02-08 07:53:19,541 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 5090 transitions. Word has length 12 [2025-02-08 07:53:19,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:19,541 INFO L471 AbstractCegarLoop]: Abstraction has 3305 states and 5090 transitions. [2025-02-08 07:53:19,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 07:53:19,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 5090 transitions. [2025-02-08 07:53:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 07:53:19,542 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:19,542 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:19,550 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 07:53:19,743 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 07:53:19,743 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr196REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:19,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1831107560, now seen corresponding path program 1 times [2025-02-08 07:53:19,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:19,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786888753] [2025-02-08 07:53:19,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:19,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:19,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:19,748 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 07:53:19,748 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 07:53:19,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 07:53:19,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 07:53:19,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:19,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:19,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:53:19,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:19,898 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 07:53:19,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:19,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:19,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786888753] [2025-02-08 07:53:19,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786888753] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:19,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:19,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:53:19,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400663987] [2025-02-08 07:53:19,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:19,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:19,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:19,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:19,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:19,899 INFO L87 Difference]: Start difference. First operand 3305 states and 5090 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:22,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:22,197 INFO L93 Difference]: Finished difference Result 3475 states and 5223 transitions. [2025-02-08 07:53:22,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:53:22,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-02-08 07:53:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:22,204 INFO L225 Difference]: With dead ends: 3475 [2025-02-08 07:53:22,204 INFO L226 Difference]: Without dead ends: 3475 [2025-02-08 07:53:22,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:53:22,205 INFO L435 NwaCegarLoop]: 2101 mSDtfsCounter, 1977 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 3755 SdHoareTripleChecker+Invalid, 2084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:22,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 3755 Invalid, 2084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-08 07:53:22,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3475 states. [2025-02-08 07:53:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3282. [2025-02-08 07:53:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 2347 states have (on average 1.9228802726885386) internal successors, (4513), 3275 states have internal predecessors, (4513), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:22,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 5021 transitions. [2025-02-08 07:53:22,233 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 5021 transitions. Word has length 14 [2025-02-08 07:53:22,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:22,233 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 5021 transitions. [2025-02-08 07:53:22,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:22,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 5021 transitions. [2025-02-08 07:53:22,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 07:53:22,234 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:22,234 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:22,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 07:53:22,434 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 07:53:22,435 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr197REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:22,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:22,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1831107561, now seen corresponding path program 1 times [2025-02-08 07:53:22,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:22,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162200866] [2025-02-08 07:53:22,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:22,437 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 07:53:22,439 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 07:53:22,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 07:53:22,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 07:53:22,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:22,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:22,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:53:22,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:22,556 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 07:53:22,628 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 07:53:22,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:22,629 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:22,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162200866] [2025-02-08 07:53:22,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162200866] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:22,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:22,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:53:22,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650328755] [2025-02-08 07:53:22,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:22,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:22,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:22,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:22,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:22,630 INFO L87 Difference]: Start difference. First operand 3282 states and 5021 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:25,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:25,086 INFO L93 Difference]: Finished difference Result 3979 states and 5693 transitions. [2025-02-08 07:53:25,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:53:25,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-02-08 07:53:25,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:25,095 INFO L225 Difference]: With dead ends: 3979 [2025-02-08 07:53:25,098 INFO L226 Difference]: Without dead ends: 3979 [2025-02-08 07:53:25,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:53:25,101 INFO L435 NwaCegarLoop]: 2407 mSDtfsCounter, 1339 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:25,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 5453 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 07:53:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2025-02-08 07:53:25,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3263. [2025-02-08 07:53:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 2328 states have (on average 1.92053264604811) internal successors, (4471), 3256 states have internal predecessors, (4471), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4979 transitions. [2025-02-08 07:53:25,201 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4979 transitions. Word has length 14 [2025-02-08 07:53:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:25,202 INFO L471 AbstractCegarLoop]: Abstraction has 3263 states and 4979 transitions. [2025-02-08 07:53:25,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4979 transitions. [2025-02-08 07:53:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 07:53:25,203 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:25,203 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:25,211 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 07:53:25,406 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 07:53:25,407 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:25,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:25,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1249398775, now seen corresponding path program 1 times [2025-02-08 07:53:25,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:25,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553074690] [2025-02-08 07:53:25,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:25,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:25,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:25,409 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 07:53:25,410 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 07:53:25,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 07:53:25,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 07:53:25,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:25,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:25,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:53:25,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:25,514 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 07:53:25,514 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 07:53:25,515 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 07:53:25,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 07:53:25,553 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 07:53:25,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 07:53:25,562 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 07:53:25,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:25,562 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:25,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553074690] [2025-02-08 07:53:25,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553074690] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:25,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:25,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:53:25,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590800706] [2025-02-08 07:53:25,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:25,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:25,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:25,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:25,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:25,564 INFO L87 Difference]: Start difference. First operand 3263 states and 4979 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:26,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:26,852 INFO L93 Difference]: Finished difference Result 5029 states and 7240 transitions. [2025-02-08 07:53:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:53:26,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-02-08 07:53:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:26,860 INFO L225 Difference]: With dead ends: 5029 [2025-02-08 07:53:26,860 INFO L226 Difference]: Without dead ends: 5029 [2025-02-08 07:53:26,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:53:26,861 INFO L435 NwaCegarLoop]: 2703 mSDtfsCounter, 1950 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 7379 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:26,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 7379 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-08 07:53:26,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5029 states. [2025-02-08 07:53:26,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5029 to 2695. [2025-02-08 07:53:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2695 states, 1760 states have (on average 1.9227272727272726) internal successors, (3384), 2688 states have internal predecessors, (3384), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 3892 transitions. [2025-02-08 07:53:26,941 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 3892 transitions. Word has length 14 [2025-02-08 07:53:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:26,941 INFO L471 AbstractCegarLoop]: Abstraction has 2695 states and 3892 transitions. [2025-02-08 07:53:26,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:53:26,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 3892 transitions. [2025-02-08 07:53:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 07:53:26,942 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:26,942 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:26,949 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 07:53:27,146 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 07:53:27,146 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr512REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:27,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:27,147 INFO L85 PathProgramCache]: Analyzing trace with hash 804824072, now seen corresponding path program 1 times [2025-02-08 07:53:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:27,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960207453] [2025-02-08 07:53:27,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:27,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:27,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:27,149 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 07:53:27,150 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 07:53:27,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 07:53:27,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 07:53:27,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:27,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:27,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:53:27,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:27,286 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 07:53:27,287 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:27,287 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:27,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960207453] [2025-02-08 07:53:27,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960207453] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:27,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:27,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:53:27,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353518004] [2025-02-08 07:53:27,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:27,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:27,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:27,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:27,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:27,288 INFO L87 Difference]: Start difference. First operand 2695 states and 3892 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:53:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:29,110 INFO L93 Difference]: Finished difference Result 2680 states and 3854 transitions. [2025-02-08 07:53:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:53:29,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2025-02-08 07:53:29,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:29,118 INFO L225 Difference]: With dead ends: 2680 [2025-02-08 07:53:29,121 INFO L226 Difference]: Without dead ends: 2680 [2025-02-08 07:53:29,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 07:53:29,122 INFO L435 NwaCegarLoop]: 2136 mSDtfsCounter, 1797 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:29,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 3720 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 07:53:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2025-02-08 07:53:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2672. [2025-02-08 07:53:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 1760 states have (on average 1.896590909090909) internal successors, (3338), 2665 states have internal predecessors, (3338), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3846 transitions. [2025-02-08 07:53:29,187 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3846 transitions. Word has length 18 [2025-02-08 07:53:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:29,187 INFO L471 AbstractCegarLoop]: Abstraction has 2672 states and 3846 transitions. [2025-02-08 07:53:29,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:53:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3846 transitions. [2025-02-08 07:53:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 07:53:29,188 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:29,188 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:29,196 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 07:53:29,388 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 07:53:29,389 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr513REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:29,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:29,389 INFO L85 PathProgramCache]: Analyzing trace with hash 804824073, now seen corresponding path program 1 times [2025-02-08 07:53:29,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:29,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582166470] [2025-02-08 07:53:29,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:29,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:29,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:29,392 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 07:53:29,393 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 07:53:29,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 07:53:29,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 07:53:29,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:29,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:29,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:53:29,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:29,536 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 07:53:29,608 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 07:53:29,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:29,608 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:29,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582166470] [2025-02-08 07:53:29,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582166470] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:29,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:29,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:53:29,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698205260] [2025-02-08 07:53:29,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:29,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:29,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:29,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:29,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:29,610 INFO L87 Difference]: Start difference. First operand 2672 states and 3846 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:53:32,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:32,687 INFO L93 Difference]: Finished difference Result 4643 states and 6873 transitions. [2025-02-08 07:53:32,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:53:32,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2025-02-08 07:53:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:32,694 INFO L225 Difference]: With dead ends: 4643 [2025-02-08 07:53:32,694 INFO L226 Difference]: Without dead ends: 4643 [2025-02-08 07:53:32,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 07:53:32,696 INFO L435 NwaCegarLoop]: 4095 mSDtfsCounter, 1618 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 9180 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:32,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 9180 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-08 07:53:32,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2025-02-08 07:53:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 2786. [2025-02-08 07:53:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 1874 states have (on average 1.854855923159018) internal successors, (3476), 2779 states have internal predecessors, (3476), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:32,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3984 transitions. [2025-02-08 07:53:32,730 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3984 transitions. Word has length 18 [2025-02-08 07:53:32,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:32,730 INFO L471 AbstractCegarLoop]: Abstraction has 2786 states and 3984 transitions. [2025-02-08 07:53:32,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:53:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3984 transitions. [2025-02-08 07:53:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-08 07:53:32,731 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:32,731 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:32,756 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 07:53:32,932 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 07:53:32,932 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr513REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:32,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:32,933 INFO L85 PathProgramCache]: Analyzing trace with hash -605843228, now seen corresponding path program 1 times [2025-02-08 07:53:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:32,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838310053] [2025-02-08 07:53:32,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:32,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:32,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:32,937 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 07:53:32,939 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 07:53:33,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 07:53:33,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 07:53:33,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:33,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:33,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 07:53:33,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:33,100 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 07:53:33,226 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 07:53:33,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:53:33,549 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 07:53:33,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:33,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838310053] [2025-02-08 07:53:33,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838310053] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:53:33,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:53:33,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-08 07:53:33,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646195749] [2025-02-08 07:53:33,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:53:33,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:53:33,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:33,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:53:33,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:53:33,551 INFO L87 Difference]: Start difference. First operand 2786 states and 3984 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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 07:53:42,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:42,949 INFO L93 Difference]: Finished difference Result 4999 states and 7363 transitions. [2025-02-08 07:53:42,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:53:42,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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 37 [2025-02-08 07:53:42,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:42,957 INFO L225 Difference]: With dead ends: 4999 [2025-02-08 07:53:42,957 INFO L226 Difference]: Without dead ends: 4999 [2025-02-08 07:53:42,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 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 07:53:42,958 INFO L435 NwaCegarLoop]: 4122 mSDtfsCounter, 4028 mSDsluCounter, 11475 mSDsCounter, 0 mSdLazyCounter, 4691 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4029 SdHoareTripleChecker+Valid, 15597 SdHoareTripleChecker+Invalid, 4718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 4691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:42,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4029 Valid, 15597 Invalid, 4718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 4691 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2025-02-08 07:53:42,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4999 states. [2025-02-08 07:53:42,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4999 to 2950. [2025-02-08 07:53:42,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2038 states have (on average 1.8194308145240432) internal successors, (3708), 2943 states have internal predecessors, (3708), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 4216 transitions. [2025-02-08 07:53:43,008 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 4216 transitions. Word has length 37 [2025-02-08 07:53:43,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:43,008 INFO L471 AbstractCegarLoop]: Abstraction has 2950 states and 4216 transitions. [2025-02-08 07:53:43,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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 07:53:43,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 4216 transitions. [2025-02-08 07:53:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 07:53:43,012 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:43,012 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 07:53:43,023 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 07:53:43,216 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 07:53:43,216 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr431REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:43,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:43,217 INFO L85 PathProgramCache]: Analyzing trace with hash -221991393, now seen corresponding path program 1 times [2025-02-08 07:53:43,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:43,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295017133] [2025-02-08 07:53:43,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:43,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:43,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:43,219 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 07:53:43,221 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 07:53:43,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 07:53:43,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 07:53:43,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:43,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:43,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:53:43,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:43,423 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 07:53:43,423 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:43,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:43,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295017133] [2025-02-08 07:53:43,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295017133] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:43,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:43,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:53:43,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217608292] [2025-02-08 07:53:43,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:43,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:43,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:43,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:43,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:43,425 INFO L87 Difference]: Start difference. First operand 2950 states and 4216 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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 07:53:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:43,491 INFO L93 Difference]: Finished difference Result 2639 states and 3780 transitions. [2025-02-08 07:53:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:53:43,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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 07:53:43,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:43,496 INFO L225 Difference]: With dead ends: 2639 [2025-02-08 07:53:43,496 INFO L226 Difference]: Without dead ends: 2639 [2025-02-08 07:53:43,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 07:53:43,497 INFO L435 NwaCegarLoop]: 2446 mSDtfsCounter, 56 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 7265 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 07:53:43,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 7265 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:53:43,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2025-02-08 07:53:43,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2637. [2025-02-08 07:53:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 1748 states have (on average 1.8707093821510297) internal successors, (3270), 2630 states have internal predecessors, (3270), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:43,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 3778 transitions. [2025-02-08 07:53:43,519 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 3778 transitions. Word has length 53 [2025-02-08 07:53:43,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:43,520 INFO L471 AbstractCegarLoop]: Abstraction has 2637 states and 3778 transitions. [2025-02-08 07:53:43,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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 07:53:43,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 3778 transitions. [2025-02-08 07:53:43,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-08 07:53:43,522 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:43,522 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] [2025-02-08 07:53:43,533 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 07:53:43,723 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 07:53:43,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr431REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:43,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:43,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1253553049, now seen corresponding path program 1 times [2025-02-08 07:53:43,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:43,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890757889] [2025-02-08 07:53:43,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:43,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:43,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:43,727 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 07:53:43,729 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 07:53:43,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 07:53:43,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 07:53:43,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:43,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:43,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 07:53:43,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:43,932 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 07:53:44,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 07:53:44,273 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 07:53:44,283 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 07:53:44,284 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 07:53:44,289 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 07:53:44,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:44,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:44,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890757889] [2025-02-08 07:53:44,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890757889] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:44,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:44,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:53:44,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256053394] [2025-02-08 07:53:44,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:44,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:53:44,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:44,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:53:44,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:53:44,291 INFO L87 Difference]: Start difference. First operand 2637 states and 3778 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 07:53:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:47,438 INFO L93 Difference]: Finished difference Result 2599 states and 3740 transitions. [2025-02-08 07:53:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:53:47,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2025-02-08 07:53:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:47,442 INFO L225 Difference]: With dead ends: 2599 [2025-02-08 07:53:47,442 INFO L226 Difference]: Without dead ends: 2599 [2025-02-08 07:53:47,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 07:53:47,442 INFO L435 NwaCegarLoop]: 1986 mSDtfsCounter, 1689 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 2772 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:47,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 3499 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2772 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-02-08 07:53:47,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2025-02-08 07:53:47,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2560. [2025-02-08 07:53:47,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1709 states have (on average 1.8466939730836747) internal successors, (3156), 2553 states have internal predecessors, (3156), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3664 transitions. [2025-02-08 07:53:47,465 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3664 transitions. Word has length 61 [2025-02-08 07:53:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:47,465 INFO L471 AbstractCegarLoop]: Abstraction has 2560 states and 3664 transitions. [2025-02-08 07:53:47,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 07:53:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3664 transitions. [2025-02-08 07:53:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:53:47,466 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:47,466 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 07:53:47,476 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 07:53:47,666 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 07:53:47,667 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr424REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:47,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1781883277, now seen corresponding path program 1 times [2025-02-08 07:53:47,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:47,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287773668] [2025-02-08 07:53:47,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:47,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:47,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:47,670 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 07:53:47,671 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 07:53:47,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:53:47,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:53:47,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:47,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:47,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:53:47,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:47,855 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 07:53:47,868 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 07:53:47,889 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 07:53:47,900 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 07:53:47,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:47,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:47,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287773668] [2025-02-08 07:53:47,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287773668] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:47,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:47,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:53:47,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822179670] [2025-02-08 07:53:47,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:47,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:53:47,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:47,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:53:47,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:53:47,902 INFO L87 Difference]: Start difference. First operand 2560 states and 3664 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:53:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:49,515 INFO L93 Difference]: Finished difference Result 2559 states and 3663 transitions. [2025-02-08 07:53:49,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:53:49,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2025-02-08 07:53:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:49,519 INFO L225 Difference]: With dead ends: 2559 [2025-02-08 07:53:49,519 INFO L226 Difference]: Without dead ends: 2559 [2025-02-08 07:53:49,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 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 07:53:49,520 INFO L435 NwaCegarLoop]: 2418 mSDtfsCounter, 2 mSDsluCounter, 6024 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8442 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:49,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8442 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-08 07:53:49,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2025-02-08 07:53:49,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2559. [2025-02-08 07:53:49,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2559 states, 1709 states have (on average 1.8461088355763604) internal successors, (3155), 2552 states have internal predecessors, (3155), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3663 transitions. [2025-02-08 07:53:49,541 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3663 transitions. Word has length 66 [2025-02-08 07:53:49,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:49,541 INFO L471 AbstractCegarLoop]: Abstraction has 2559 states and 3663 transitions. [2025-02-08 07:53:49,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:53:49,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3663 transitions. [2025-02-08 07:53:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:53:49,542 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:49,542 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 07:53:49,553 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 07:53:49,742 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 07:53:49,743 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr425REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:49,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1781883276, now seen corresponding path program 1 times [2025-02-08 07:53:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:49,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975909776] [2025-02-08 07:53:49,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:49,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:49,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:49,746 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 07:53:49,748 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 07:53:49,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:53:49,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:53:49,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:49,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:49,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 07:53:49,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:49,940 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 07:53:49,957 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 07:53:49,960 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 07:53:49,993 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 07:53:50,006 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 07:53:50,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:50,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:50,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975909776] [2025-02-08 07:53:50,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975909776] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:53:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958652567] [2025-02-08 07:53:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:50,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:53:50,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:50,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:53:50,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:53:50,008 INFO L87 Difference]: Start difference. First operand 2559 states and 3663 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:53:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:51,778 INFO L93 Difference]: Finished difference Result 2558 states and 3662 transitions. [2025-02-08 07:53:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:53:51,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2025-02-08 07:53:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:51,782 INFO L225 Difference]: With dead ends: 2558 [2025-02-08 07:53:51,782 INFO L226 Difference]: Without dead ends: 2558 [2025-02-08 07:53:51,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 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 07:53:51,782 INFO L435 NwaCegarLoop]: 2418 mSDtfsCounter, 1 mSDsluCounter, 5954 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8372 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:51,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8372 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 07:53:51,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2025-02-08 07:53:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2558. [2025-02-08 07:53:51,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 1708 states have (on average 1.8466042154566744) internal successors, (3154), 2551 states have internal predecessors, (3154), 505 states have call successors, (505), 3 states have call predecessors, (505), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 07:53:51,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3662 transitions. [2025-02-08 07:53:51,816 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3662 transitions. Word has length 66 [2025-02-08 07:53:51,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:51,816 INFO L471 AbstractCegarLoop]: Abstraction has 2558 states and 3662 transitions. [2025-02-08 07:53:51,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:53:51,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3662 transitions. [2025-02-08 07:53:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 07:53:51,817 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:51,817 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:51,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-08 07:53:52,017 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 07:53:52,017 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:52,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:52,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1178265552, now seen corresponding path program 1 times [2025-02-08 07:53:52,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:52,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432374866] [2025-02-08 07:53:52,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:52,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:52,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:52,021 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 07:53:52,022 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 07:53:52,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 07:53:52,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 07:53:52,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:52,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:52,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 07:53:52,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:52,211 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 07:53:52,297 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 07:53:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:53:52,310 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:52,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:52,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432374866] [2025-02-08 07:53:52,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432374866] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:52,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:52,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 07:53:52,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670864536] [2025-02-08 07:53:52,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:52,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 07:53:52,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:52,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 07:53:52,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 07:53:52,312 INFO L87 Difference]: Start difference. First operand 2558 states and 3662 transitions. Second operand has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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 07:53:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:55,196 INFO L93 Difference]: Finished difference Result 2570 states and 3677 transitions. [2025-02-08 07:53:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:53:55,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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 74 [2025-02-08 07:53:55,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:55,200 INFO L225 Difference]: With dead ends: 2570 [2025-02-08 07:53:55,201 INFO L226 Difference]: Without dead ends: 2570 [2025-02-08 07:53:55,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-08 07:53:55,201 INFO L435 NwaCegarLoop]: 2405 mSDtfsCounter, 11 mSDsluCounter, 9491 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 11896 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:55,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 11896 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-08 07:53:55,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2025-02-08 07:53:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2564. [2025-02-08 07:53:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 1713 states have (on average 1.8453006421482778) internal successors, (3161), 2556 states have internal predecessors, (3161), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 07:53:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3672 transitions. [2025-02-08 07:53:55,220 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3672 transitions. Word has length 74 [2025-02-08 07:53:55,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:55,221 INFO L471 AbstractCegarLoop]: Abstraction has 2564 states and 3672 transitions. [2025-02-08 07:53:55,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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 07:53:55,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3672 transitions. [2025-02-08 07:53:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 07:53:55,221 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:55,221 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:55,232 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 07:53:55,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:55,422 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr421REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:55,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:55,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1178265553, now seen corresponding path program 1 times [2025-02-08 07:53:55,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:55,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953373326] [2025-02-08 07:53:55,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:55,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:55,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:55,425 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:53:55,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-08 07:53:55,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 07:53:55,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 07:53:55,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:55,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:55,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:53:55,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:55,640 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 07:53:55,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:53:55,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:55,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953373326] [2025-02-08 07:53:55,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953373326] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:53:55,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:53:55,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:53:55,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177969316] [2025-02-08 07:53:55,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:53:55,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:53:55,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:55,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:53:55,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:53:55,641 INFO L87 Difference]: Start difference. First operand 2564 states and 3672 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 07:53:55,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:55,680 INFO L93 Difference]: Finished difference Result 2561 states and 3666 transitions. [2025-02-08 07:53:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:53:55,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2025-02-08 07:53:55,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:55,688 INFO L225 Difference]: With dead ends: 2561 [2025-02-08 07:53:55,688 INFO L226 Difference]: Without dead ends: 2561 [2025-02-08 07:53:55,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 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 07:53:55,688 INFO L435 NwaCegarLoop]: 2418 mSDtfsCounter, 0 mSDsluCounter, 4831 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7249 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:55,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7249 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:53:55,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2025-02-08 07:53:55,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2561. [2025-02-08 07:53:55,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 1710 states have (on average 1.8461988304093566) internal successors, (3157), 2554 states have internal predecessors, (3157), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 07:53:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3666 transitions. [2025-02-08 07:53:55,712 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3666 transitions. Word has length 74 [2025-02-08 07:53:55,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:55,712 INFO L471 AbstractCegarLoop]: Abstraction has 2561 states and 3666 transitions. [2025-02-08 07:53:55,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 07:53:55,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3666 transitions. [2025-02-08 07:53:55,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-08 07:53:55,713 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:55,713 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:55,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-08 07:53:55,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:55,914 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:55,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:55,914 INFO L85 PathProgramCache]: Analyzing trace with hash 715171315, now seen corresponding path program 1 times [2025-02-08 07:53:55,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:55,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79412702] [2025-02-08 07:53:55,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:55,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:55,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:55,917 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 07:53:55,917 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 07:53:56,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 07:53:56,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 07:53:56,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:56,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:56,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:53:56,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:56,165 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 07:53:56,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:53:56,214 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 07:53:56,214 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:56,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79412702] [2025-02-08 07:53:56,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79412702] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:53:56,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:53:56,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 07:53:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055472604] [2025-02-08 07:53:56,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:53:56,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:53:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:56,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:53:56,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:53:56,217 INFO L87 Difference]: Start difference. First operand 2561 states and 3666 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 07:53:56,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:56,334 INFO L93 Difference]: Finished difference Result 2573 states and 3683 transitions. [2025-02-08 07:53:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 07:53:56,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 75 [2025-02-08 07:53:56,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:56,338 INFO L225 Difference]: With dead ends: 2573 [2025-02-08 07:53:56,339 INFO L226 Difference]: Without dead ends: 2573 [2025-02-08 07:53:56,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 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 07:53:56,339 INFO L435 NwaCegarLoop]: 2418 mSDtfsCounter, 7 mSDsluCounter, 7246 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9664 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:56,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9664 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:53:56,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2025-02-08 07:53:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2571. [2025-02-08 07:53:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 1719 states have (on average 1.8452588714368818) internal successors, (3172), 2563 states have internal predecessors, (3172), 505 states have call successors, (505), 4 states have call predecessors, (505), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 07:53:56,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3681 transitions. [2025-02-08 07:53:56,362 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3681 transitions. Word has length 75 [2025-02-08 07:53:56,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:56,362 INFO L471 AbstractCegarLoop]: Abstraction has 2571 states and 3681 transitions. [2025-02-08 07:53:56,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 07:53:56,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3681 transitions. [2025-02-08 07:53:56,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 07:53:56,363 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:56,363 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:56,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-02-08 07:53:56,563 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 07:53:56,564 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr420REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-02-08 07:53:56,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:56,564 INFO L85 PathProgramCache]: Analyzing trace with hash 281729168, now seen corresponding path program 2 times [2025-02-08 07:53:56,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:56,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776297118] [2025-02-08 07:53:56,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:53:56,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:56,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:56,567 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 07:53:56,568 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 07:53:56,725 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 07:54:24,318 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 07:54:24,319 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 07:54:24,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:54:24,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 07:54:24,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:54:24,410 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 07:54:24,410 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 07:54:24,423 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 07:54:24,572 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 07:54:24,573 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 07:54:24,602 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 07:54:24,615 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 07:54:24,615 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:54:24,676 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-02-08 07:54:24,676 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 07:54:24,682 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1225 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1225) |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 07:54:24,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:54:24,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776297118] [2025-02-08 07:54:24,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776297118] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 07:54:24,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [310290470] [2025-02-08 07:54:24,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:54:24,684 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-08 07:54:24,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-08 07:54:24,705 INFO L229 MonitoredProcess]: Starting monitored process 22 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 07:54:24,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2025-02-08 07:54:24,920 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 07:54:25,843 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 07:54:25,843 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 07:54:25,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:54:25,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:54:25,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:54:25,973 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 07:54:25,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:54:26,178 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 07:54:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [310290470] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:54:26,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 07:54:26,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-02-08 07:54:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836113149] [2025-02-08 07:54:26,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 07:54:26,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 07:54:26,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:54:26,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 07:54:26,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2025-02-08 07:54:26,180 INFO L87 Difference]: Start difference. First operand 2571 states and 3681 transitions. Second operand has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 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)