./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.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_OAT_test8-2.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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:00:12,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:00:12,347 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:00:12,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:00:12,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:00:12,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:00:12,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:00:12,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:00:12,366 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:00:12,366 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:00:12,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:00:12,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:00:12,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:00:12,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:00:12,367 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:00:12,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:00:12,367 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:00:12,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:00:12,368 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:00:12,369 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:00:12,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:00:12,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:00:12,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:00:12,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:00:12,370 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 -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2025-02-08 08:00:12,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:00:12,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:00:12,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:00:12,563 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:00:12,564 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:00:12,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-02-08 08:00:13,740 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c117b160d/9d8310b9521746faa93a4356dd13e180/FLAG1e4e7af27 [2025-02-08 08:00:14,092 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:00:14,093 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-02-08 08:00:14,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c117b160d/9d8310b9521746faa93a4356dd13e180/FLAG1e4e7af27 [2025-02-08 08:00:14,116 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c117b160d/9d8310b9521746faa93a4356dd13e180 [2025-02-08 08:00:14,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:00:14,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:00:14,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:00:14,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:00:14,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:00:14,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:00:14" (1/1) ... [2025-02-08 08:00:14,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d2d9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:14, skipping insertion in model container [2025-02-08 08:00:14,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:00:14" (1/1) ... [2025-02-08 08:00:14,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:00:14,426 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 08:00:14,456 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:00:14,460 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 08:00:14,466 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 08:00:14,473 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 08:00:14,493 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 08:00:14,496 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 08:00:14,498 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 08:00:14,498 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 08:00:14,502 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 08:00:14,503 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 08:00:14,508 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 08:00:14,508 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 08:00:14,516 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 08:00:14,517 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 08:00:14,520 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 08:00:14,521 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 08:00:14,521 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 08:00:14,523 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 08:00:14,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:00:14,553 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 08:00:14,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@639a7631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:14, skipping insertion in model container [2025-02-08 08:00:14,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:00:14,557 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 08:00:14,559 INFO L158 Benchmark]: Toolchain (without parser) took 438.86ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 111.1MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:00:14,559 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 218.1MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:00:14,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.11ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 111.1MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:00:14,562 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 218.1MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.11ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 111.1MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: 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_OAT_test8-2.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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:00:16,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:00:16,651 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:00:16,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:00:16,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:00:16,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:00:16,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:00:16,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:00:16,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:00:16,677 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:00:16,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:00:16,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:00:16,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:00:16,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:00:16,679 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:00:16,679 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:00:16,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:00:16,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:00:16,680 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 -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2025-02-08 08:00:16,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:00:16,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:00:16,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:00:16,926 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:00:16,926 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:00:16,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-02-08 08:00:18,179 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b5a6fb408/2702cb889a1c485fa56548bfb84392b5/FLAGa5d8342d9 [2025-02-08 08:00:18,489 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:00:18,490 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-02-08 08:00:18,511 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b5a6fb408/2702cb889a1c485fa56548bfb84392b5/FLAGa5d8342d9 [2025-02-08 08:00:18,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b5a6fb408/2702cb889a1c485fa56548bfb84392b5 [2025-02-08 08:00:18,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:00:18,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:00:18,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:00:18,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:00:18,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:00:18,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:00:18" (1/1) ... [2025-02-08 08:00:18,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5663c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:18, skipping insertion in model container [2025-02-08 08:00:18,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:00:18" (1/1) ... [2025-02-08 08:00:18,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:00:18,923 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 08:00:18,953 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 08:00:18,960 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 08:00:18,970 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 08:00:18,977 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:00:19,010 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 08:00:19,012 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 08:00:19,014 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 08:00:19,014 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 08:00:19,016 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 08:00:19,018 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 08:00:19,020 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 08:00:19,020 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 08:00:19,024 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 08:00:19,029 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 08:00:19,031 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 08:00:19,032 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 08:00:19,033 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 08:00:19,035 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 08:00:19,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:00:19,053 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 08:00:19,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:00:19,095 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:00:19,112 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 08:00:19,114 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:00:19,117 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:00:19,122 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 08:00:19,141 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 08:00:19,142 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 08:00:19,144 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 08:00:19,144 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 08:00:19,146 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 08:00:19,146 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 08:00:19,148 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 08:00:19,148 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 08:00:19,150 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 08:00:19,151 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 08:00:19,155 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 08:00:19,155 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 08:00:19,155 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 08:00:19,157 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 08:00:19,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:00:19,166 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:00:19,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:00:19,296 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:00:19,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19 WrapperNode [2025-02-08 08:00:19,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:00:19,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:00:19,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:00:19,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:00:19,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,365 INFO L138 Inliner]: procedures = 180, calls = 342, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1155 [2025-02-08 08:00:19,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:00:19,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:00:19,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:00:19,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:00:19,377 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,484 INFO L175 MemorySlicer]: Split 304 memory accesses to 3 slices as follows [2, 34, 268]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2025-02-08 08:00:19,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,525 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:00:19,556 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:00:19,556 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:00:19,556 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:00:19,557 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (1/1) ... [2025-02-08 08:00:19,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:00:19,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:19,590 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 08:00:19,598 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 08:00:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 08:00:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 08:00:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 08:00:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 08:00:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 08:00:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 08:00:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 08:00:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 08:00:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 08:00:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 08:00:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 08:00:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 08:00:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 08:00:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 08:00:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 08:00:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 08:00:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2025-02-08 08:00:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2025-02-08 08:00:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 08:00:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:00:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:00:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:00:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:00:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:00:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 08:00:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:00:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:00:19,822 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:00:19,823 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:00:23,165 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L763: 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 08:00:23,283 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2025-02-08 08:00:23,284 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:00:23,321 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:00:23,324 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:00:23,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:00:23 BoogieIcfgContainer [2025-02-08 08:00:23,325 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:00:23,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:00:23,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:00:23,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:00:23,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:00:18" (1/3) ... [2025-02-08 08:00:23,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d473891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:00:23, skipping insertion in model container [2025-02-08 08:00:23,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:00:19" (2/3) ... [2025-02-08 08:00:23,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d473891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:00:23, skipping insertion in model container [2025-02-08 08:00:23,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:00:23" (3/3) ... [2025-02-08 08:00:23,336 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-2.i [2025-02-08 08:00:23,347 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:00:23,348 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test8-2.i that has 7 procedures, 1322 locations, 1 initial locations, 42 loop locations, and 634 error locations. [2025-02-08 08:00:23,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:00:23,420 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;@10eb72de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:00:23,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2025-02-08 08:00:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 1312 states, 653 states have (on average 2.1990811638591117) internal successors, (1436), 1301 states have internal predecessors, (1436), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-08 08:00:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 08:00:23,436 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:23,436 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 08:00:23,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr631REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:23,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 49279, now seen corresponding path program 1 times [2025-02-08 08:00:23,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:23,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606584812] [2025-02-08 08:00:23,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:23,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:23,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:23,453 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 08:00:23,455 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 08:00:23,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:00:23,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:00:23,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:23,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:23,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:00:23,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:23,613 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 08:00:23,625 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 08:00:23,625 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:23,625 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:23,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606584812] [2025-02-08 08:00:23,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606584812] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:23,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:23,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:00:23,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409299544] [2025-02-08 08:00:23,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:23,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:00:23,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:23,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:00:23,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:00:23,645 INFO L87 Difference]: Start difference. First operand has 1312 states, 653 states have (on average 2.1990811638591117) internal successors, (1436), 1301 states have internal predecessors, (1436), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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 08:00:25,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:25,199 INFO L93 Difference]: Finished difference Result 1496 states and 1602 transitions. [2025-02-08 08:00:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:00:25,200 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 08:00:25,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:25,212 INFO L225 Difference]: With dead ends: 1496 [2025-02-08 08:00:25,212 INFO L226 Difference]: Without dead ends: 1491 [2025-02-08 08:00:25,213 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 08:00:25,215 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 1167 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:25,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1073 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-08 08:00:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2025-02-08 08:00:25,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1298. [2025-02-08 08:00:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 657 states have (on average 2.0639269406392695) internal successors, (1356), 1287 states have internal predecessors, (1356), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:00:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1385 transitions. [2025-02-08 08:00:25,284 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1385 transitions. Word has length 2 [2025-02-08 08:00:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:25,285 INFO L471 AbstractCegarLoop]: Abstraction has 1298 states and 1385 transitions. [2025-02-08 08:00:25,285 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 08:00:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1385 transitions. [2025-02-08 08:00:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 08:00:25,285 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:25,285 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 08:00:25,292 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 08:00:25,490 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 08:00:25,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr632REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:25,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 49280, now seen corresponding path program 1 times [2025-02-08 08:00:25,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:25,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920217726] [2025-02-08 08:00:25,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:25,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:25,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:25,493 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 08:00:25,494 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 08:00:25,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:00:25,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:00:25,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:25,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:25,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:00:25,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:25,675 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 08:00:25,685 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 08:00:25,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:25,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:25,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920217726] [2025-02-08 08:00:25,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920217726] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:25,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:25,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:00:25,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576353468] [2025-02-08 08:00:25,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:25,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:00:25,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:25,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:00:25,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:00:25,687 INFO L87 Difference]: Start difference. First operand 1298 states and 1385 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 08:00:28,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:28,192 INFO L93 Difference]: Finished difference Result 1909 states and 2039 transitions. [2025-02-08 08:00:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:00:28,194 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 08:00:28,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:28,199 INFO L225 Difference]: With dead ends: 1909 [2025-02-08 08:00:28,199 INFO L226 Difference]: Without dead ends: 1909 [2025-02-08 08:00:28,199 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 08:00:28,201 INFO L435 NwaCegarLoop]: 1080 mSDtfsCounter, 650 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:28,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1831 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 08:00:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2025-02-08 08:00:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1518. [2025-02-08 08:00:28,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 877 states have (on average 2.0444697833523375) internal successors, (1793), 1506 states have internal predecessors, (1793), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:00:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1824 transitions. [2025-02-08 08:00:28,230 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1824 transitions. Word has length 2 [2025-02-08 08:00:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:28,230 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1824 transitions. [2025-02-08 08:00:28,230 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 08:00:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1824 transitions. [2025-02-08 08:00:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 08:00:28,231 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:28,231 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:00:28,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 08:00:28,435 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 08:00:28,435 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr628REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:28,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:28,436 INFO L85 PathProgramCache]: Analyzing trace with hash -820801856, now seen corresponding path program 1 times [2025-02-08 08:00:28,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:28,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381390356] [2025-02-08 08:00:28,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:28,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:28,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:28,438 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 08:00:28,440 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 08:00:28,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:00:28,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:00:28,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:28,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:28,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:00:28,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:28,547 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 08:00:28,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 08:00:28,635 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 08:00:28,658 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 08:00:28,662 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 08:00:28,680 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 08:00:28,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:28,681 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:28,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381390356] [2025-02-08 08:00:28,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381390356] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:28,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:28,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:00:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470090919] [2025-02-08 08:00:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:28,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:00:28,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:28,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:00:28,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:28,686 INFO L87 Difference]: Start difference. First operand 1518 states and 1824 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 08:00:31,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:31,073 INFO L93 Difference]: Finished difference Result 1705 states and 2018 transitions. [2025-02-08 08:00:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:00:31,073 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 08:00:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:31,080 INFO L225 Difference]: With dead ends: 1705 [2025-02-08 08:00:31,080 INFO L226 Difference]: Without dead ends: 1705 [2025-02-08 08:00:31,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:31,080 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 2634 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:31,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2640 Valid, 641 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-08 08:00:31,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2025-02-08 08:00:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1286. [2025-02-08 08:00:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 657 states have (on average 2.0441400304414) internal successors, (1343), 1275 states have internal predecessors, (1343), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:00:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1372 transitions. [2025-02-08 08:00:31,103 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1372 transitions. Word has length 7 [2025-02-08 08:00:31,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:31,104 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1372 transitions. [2025-02-08 08:00:31,104 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 08:00:31,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1372 transitions. [2025-02-08 08:00:31,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 08:00:31,104 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:31,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:00:31,115 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 08:00:31,305 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 08:00:31,305 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr625REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:31,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:31,308 INFO L85 PathProgramCache]: Analyzing trace with hash 324947669, now seen corresponding path program 1 times [2025-02-08 08:00:31,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:31,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081370152] [2025-02-08 08:00:31,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:31,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:31,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:31,311 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 08:00:31,313 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 08:00:31,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:00:31,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:00:31,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:31,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:31,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:00:31,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:31,428 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 08:00:31,442 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 08:00:31,442 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:31,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:31,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081370152] [2025-02-08 08:00:31,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081370152] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:31,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:31,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:00:31,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041483759] [2025-02-08 08:00:31,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:31,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:00:31,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:31,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:00:31,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:00:31,443 INFO L87 Difference]: Start difference. First operand 1286 states and 1372 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 08:00:32,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:32,819 INFO L93 Difference]: Finished difference Result 1628 states and 1743 transitions. [2025-02-08 08:00:32,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:00:32,820 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 08:00:32,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:32,829 INFO L225 Difference]: With dead ends: 1628 [2025-02-08 08:00:32,830 INFO L226 Difference]: Without dead ends: 1628 [2025-02-08 08:00:32,830 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 08:00:32,831 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 950 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:32,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1629 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-08 08:00:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2025-02-08 08:00:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1238. [2025-02-08 08:00:32,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 657 states have (on average 1.969558599695586) internal successors, (1294), 1227 states have internal predecessors, (1294), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:00:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1323 transitions. [2025-02-08 08:00:32,848 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1323 transitions. Word has length 8 [2025-02-08 08:00:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:32,848 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1323 transitions. [2025-02-08 08:00:32,848 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 08:00:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1323 transitions. [2025-02-08 08:00:32,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 08:00:32,849 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:32,849 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:00:32,856 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 08:00:33,049 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 08:00:33,050 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr626REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:33,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:33,050 INFO L85 PathProgramCache]: Analyzing trace with hash 324947670, now seen corresponding path program 1 times [2025-02-08 08:00:33,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:33,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261039253] [2025-02-08 08:00:33,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:33,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:33,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:33,053 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 08:00:33,054 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 08:00:33,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:00:33,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:00:33,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:33,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:33,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:00:33,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:33,162 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 08:00:33,175 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 08:00:33,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:33,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:33,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261039253] [2025-02-08 08:00:33,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261039253] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:33,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:33,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:00:33,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497670172] [2025-02-08 08:00:33,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:33,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:00:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:33,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:00:33,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:00:33,176 INFO L87 Difference]: Start difference. First operand 1238 states and 1323 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 08:00:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:34,786 INFO L93 Difference]: Finished difference Result 1731 states and 1852 transitions. [2025-02-08 08:00:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:00:34,787 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 08:00:34,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:34,795 INFO L225 Difference]: With dead ends: 1731 [2025-02-08 08:00:34,795 INFO L226 Difference]: Without dead ends: 1731 [2025-02-08 08:00:34,796 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 08:00:34,796 INFO L435 NwaCegarLoop]: 1425 mSDtfsCounter, 712 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:34,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 2016 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-08 08:00:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2025-02-08 08:00:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1503. [2025-02-08 08:00:34,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 930 states have (on average 1.9494623655913978) internal successors, (1813), 1490 states have internal predecessors, (1813), 25 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-08 08:00:34,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1846 transitions. [2025-02-08 08:00:34,830 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1846 transitions. Word has length 8 [2025-02-08 08:00:34,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:34,830 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1846 transitions. [2025-02-08 08:00:34,830 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 08:00:34,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1846 transitions. [2025-02-08 08:00:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 08:00:34,831 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:34,831 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:00:34,839 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 08:00:35,031 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 08:00:35,032 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:35,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2018419792, now seen corresponding path program 1 times [2025-02-08 08:00:35,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:35,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976909094] [2025-02-08 08:00:35,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:35,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:35,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:35,037 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 08:00:35,046 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 08:00:35,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:00:35,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:00:35,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:35,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:35,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:00:35,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:35,225 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 08:00:35,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:35,226 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:35,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976909094] [2025-02-08 08:00:35,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976909094] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:35,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:35,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:00:35,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887267878] [2025-02-08 08:00:35,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:35,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:00:35,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:35,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:00:35,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:00:35,228 INFO L87 Difference]: Start difference. First operand 1503 states and 1846 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 08:00:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:35,494 INFO L93 Difference]: Finished difference Result 2283 states and 2882 transitions. [2025-02-08 08:00:35,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:00:35,494 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 08:00:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:35,500 INFO L225 Difference]: With dead ends: 2283 [2025-02-08 08:00:35,500 INFO L226 Difference]: Without dead ends: 2283 [2025-02-08 08:00:35,500 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 08:00:35,502 INFO L435 NwaCegarLoop]: 1441 mSDtfsCounter, 638 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:35,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 2622 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:00:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2025-02-08 08:00:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1917. [2025-02-08 08:00:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1342 states have (on average 1.9396423248882266) internal successors, (2603), 1902 states have internal predecessors, (2603), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:00:35,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2640 transitions. [2025-02-08 08:00:35,534 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2640 transitions. Word has length 12 [2025-02-08 08:00:35,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:35,534 INFO L471 AbstractCegarLoop]: Abstraction has 1917 states and 2640 transitions. [2025-02-08 08:00:35,534 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 08:00:35,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2640 transitions. [2025-02-08 08:00:35,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:00:35,535 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:35,535 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:00:35,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 08:00:35,735 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 08:00:35,736 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr297REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:35,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:35,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1209648480, now seen corresponding path program 1 times [2025-02-08 08:00:35,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:35,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188594899] [2025-02-08 08:00:35,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:35,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:35,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:35,738 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 08:00:35,740 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 08:00:35,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:00:35,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:00:35,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:35,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:35,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:00:35,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:35,848 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 08:00:35,879 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 08:00:35,879 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:35,879 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:35,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188594899] [2025-02-08 08:00:35,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188594899] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:35,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:35,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:00:35,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743053585] [2025-02-08 08:00:35,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:35,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:00:35,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:35,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:00:35,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:35,881 INFO L87 Difference]: Start difference. First operand 1917 states and 2640 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 08:00:37,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:37,645 INFO L93 Difference]: Finished difference Result 2107 states and 2770 transitions. [2025-02-08 08:00:37,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:00:37,646 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 08:00:37,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:37,652 INFO L225 Difference]: With dead ends: 2107 [2025-02-08 08:00:37,652 INFO L226 Difference]: Without dead ends: 2107 [2025-02-08 08:00:37,652 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 08:00:37,653 INFO L435 NwaCegarLoop]: 772 mSDtfsCounter, 1161 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:37,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1650 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 08:00:37,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2025-02-08 08:00:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1894. [2025-02-08 08:00:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1342 states have (on average 1.8710879284649777) internal successors, (2511), 1879 states have internal predecessors, (2511), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:00:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2548 transitions. [2025-02-08 08:00:37,680 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2548 transitions. Word has length 14 [2025-02-08 08:00:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:37,681 INFO L471 AbstractCegarLoop]: Abstraction has 1894 states and 2548 transitions. [2025-02-08 08:00:37,681 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 08:00:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2548 transitions. [2025-02-08 08:00:37,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:00:37,682 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:37,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:00:37,688 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 08:00:37,882 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 08:00:37,883 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr298REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:37,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:37,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1209648479, now seen corresponding path program 1 times [2025-02-08 08:00:37,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:37,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364265454] [2025-02-08 08:00:37,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:37,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:37,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:37,885 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 08:00:37,887 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 08:00:38,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:00:38,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:00:38,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:38,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:38,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:00:38,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:38,062 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 08:00:38,209 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 08:00:38,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:38,209 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:38,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364265454] [2025-02-08 08:00:38,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364265454] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:38,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:38,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:00:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933399707] [2025-02-08 08:00:38,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:38,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:00:38,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:38,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:00:38,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:38,210 INFO L87 Difference]: Start difference. First operand 1894 states and 2548 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 08:00:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:40,905 INFO L93 Difference]: Finished difference Result 2598 states and 3401 transitions. [2025-02-08 08:00:40,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:00:40,906 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 08:00:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:40,913 INFO L225 Difference]: With dead ends: 2598 [2025-02-08 08:00:40,913 INFO L226 Difference]: Without dead ends: 2598 [2025-02-08 08:00:40,913 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 08:00:40,913 INFO L435 NwaCegarLoop]: 1018 mSDtfsCounter, 626 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:40,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 2376 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-08 08:00:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2025-02-08 08:00:40,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2222. [2025-02-08 08:00:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 1668 states have (on average 1.8717026378896882) internal successors, (3122), 2205 states have internal predecessors, (3122), 29 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 08:00:40,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3163 transitions. [2025-02-08 08:00:40,950 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 3163 transitions. Word has length 14 [2025-02-08 08:00:40,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:40,951 INFO L471 AbstractCegarLoop]: Abstraction has 2222 states and 3163 transitions. [2025-02-08 08:00:40,951 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 08:00:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 3163 transitions. [2025-02-08 08:00:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:00:40,951 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:40,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:00:40,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 08:00:41,156 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 08:00:41,156 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:41,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1623826645, now seen corresponding path program 1 times [2025-02-08 08:00:41,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:41,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139254082] [2025-02-08 08:00:41,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:41,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:41,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:41,159 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 08:00:41,160 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 08:00:41,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:00:41,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:00:41,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:41,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:41,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:00:41,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:41,324 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:00:41,325 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:00:41,325 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:00:41,332 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 08:00:41,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 08:00:41,384 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 08:00:41,393 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 08:00:41,393 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:41,394 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:41,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139254082] [2025-02-08 08:00:41,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139254082] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:41,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:41,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:00:41,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674932391] [2025-02-08 08:00:41,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:41,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:00:41,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:41,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:00:41,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:41,395 INFO L87 Difference]: Start difference. First operand 2222 states and 3163 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 08:00:41,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:41,738 INFO L93 Difference]: Finished difference Result 3305 states and 4370 transitions. [2025-02-08 08:00:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:00:41,738 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 08:00:41,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:41,746 INFO L225 Difference]: With dead ends: 3305 [2025-02-08 08:00:41,747 INFO L226 Difference]: Without dead ends: 3305 [2025-02-08 08:00:41,747 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 08:00:41,748 INFO L435 NwaCegarLoop]: 1235 mSDtfsCounter, 1153 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:41,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 3695 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 08:00:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2025-02-08 08:00:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 1893. [2025-02-08 08:00:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1341 states have (on average 1.8709917971662937) internal successors, (2509), 1878 states have internal predecessors, (2509), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:00:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2546 transitions. [2025-02-08 08:00:41,773 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2546 transitions. Word has length 14 [2025-02-08 08:00:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:41,774 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 2546 transitions. [2025-02-08 08:00:41,774 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 08:00:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2546 transitions. [2025-02-08 08:00:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 08:00:41,774 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:41,774 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 08:00:41,787 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 08:00:41,975 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 08:00:41,975 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr617REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:41,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:41,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1046973768, now seen corresponding path program 1 times [2025-02-08 08:00:41,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:41,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962810041] [2025-02-08 08:00:41,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:41,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:41,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:41,978 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 08:00:41,979 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 08:00:42,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:00:42,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:00:42,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:42,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:42,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:00:42,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:42,140 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 08:00:42,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:42,141 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:42,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962810041] [2025-02-08 08:00:42,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962810041] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:42,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:42,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:00:42,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679824098] [2025-02-08 08:00:42,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:42,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:00:42,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:42,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:00:42,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:42,142 INFO L87 Difference]: Start difference. First operand 1893 states and 2546 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 08:00:43,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:43,772 INFO L93 Difference]: Finished difference Result 1891 states and 2524 transitions. [2025-02-08 08:00:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:00:43,773 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 08:00:43,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:43,777 INFO L225 Difference]: With dead ends: 1891 [2025-02-08 08:00:43,777 INFO L226 Difference]: Without dead ends: 1891 [2025-02-08 08:00:43,777 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 08:00:43,778 INFO L435 NwaCegarLoop]: 791 mSDtfsCounter, 975 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:43,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 1576 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-08 08:00:43,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2025-02-08 08:00:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1870. [2025-02-08 08:00:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1341 states have (on average 1.8366890380313199) internal successors, (2463), 1855 states have internal predecessors, (2463), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:00:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2500 transitions. [2025-02-08 08:00:43,817 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2500 transitions. Word has length 18 [2025-02-08 08:00:43,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:43,817 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2500 transitions. [2025-02-08 08:00:43,817 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 08:00:43,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2500 transitions. [2025-02-08 08:00:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 08:00:43,818 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:43,818 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 08:00:43,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 08:00:44,019 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 08:00:44,020 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr618REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:44,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:44,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1046973769, now seen corresponding path program 1 times [2025-02-08 08:00:44,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:44,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217860105] [2025-02-08 08:00:44,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:44,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:44,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:44,025 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 08:00:44,026 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 08:00:44,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:00:44,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:00:44,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:44,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:44,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:00:44,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:44,168 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 08:00:44,293 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 08:00:44,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:44,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217860105] [2025-02-08 08:00:44,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217860105] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:44,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:44,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:00:44,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027246261] [2025-02-08 08:00:44,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:44,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:00:44,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:44,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:00:44,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:44,295 INFO L87 Difference]: Start difference. First operand 1870 states and 2500 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 08:00:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:46,907 INFO L93 Difference]: Finished difference Result 2206 states and 2661 transitions. [2025-02-08 08:00:46,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:00:46,908 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 08:00:46,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:46,913 INFO L225 Difference]: With dead ends: 2206 [2025-02-08 08:00:46,913 INFO L226 Difference]: Without dead ends: 2206 [2025-02-08 08:00:46,913 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 08:00:46,914 INFO L435 NwaCegarLoop]: 1453 mSDtfsCounter, 808 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:46,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2962 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-08 08:00:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2025-02-08 08:00:46,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1984. [2025-02-08 08:00:46,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1455 states have (on average 1.7876288659793815) internal successors, (2601), 1969 states have internal predecessors, (2601), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:00:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2638 transitions. [2025-02-08 08:00:46,932 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2638 transitions. Word has length 18 [2025-02-08 08:00:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:46,932 INFO L471 AbstractCegarLoop]: Abstraction has 1984 states and 2638 transitions. [2025-02-08 08:00:46,933 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 08:00:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2638 transitions. [2025-02-08 08:00:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-08 08:00:46,935 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:46,936 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 08:00:46,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-08 08:00:47,136 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 08:00:47,136 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr618REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:47,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:47,137 INFO L85 PathProgramCache]: Analyzing trace with hash 515232734, now seen corresponding path program 1 times [2025-02-08 08:00:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:47,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444023474] [2025-02-08 08:00:47,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:47,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:47,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:47,139 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 08:00:47,142 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 08:00:47,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 08:00:47,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 08:00:47,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:47,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:47,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:00:47,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:47,317 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 08:00:47,599 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 08:00:47,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:00:47,984 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 08:00:47,984 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:47,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444023474] [2025-02-08 08:00:47,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444023474] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:00:47,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:00:47,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-08 08:00:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985154675] [2025-02-08 08:00:47,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:00:47,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:00:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:47,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:00:47,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:00:47,986 INFO L87 Difference]: Start difference. First operand 1984 states and 2638 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 08:00:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:54,513 INFO L93 Difference]: Finished difference Result 2562 states and 3151 transitions. [2025-02-08 08:00:54,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:00:54,514 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 08:00:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:54,521 INFO L225 Difference]: With dead ends: 2562 [2025-02-08 08:00:54,522 INFO L226 Difference]: Without dead ends: 2562 [2025-02-08 08:00:54,522 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 08:00:54,522 INFO L435 NwaCegarLoop]: 1480 mSDtfsCounter, 2408 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:54,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 4025 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2588 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2025-02-08 08:00:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2025-02-08 08:00:54,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2148. [2025-02-08 08:00:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1619 states have (on average 1.749845583693638) internal successors, (2833), 2133 states have internal predecessors, (2833), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:00:54,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2870 transitions. [2025-02-08 08:00:54,556 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2870 transitions. Word has length 37 [2025-02-08 08:00:54,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:54,557 INFO L471 AbstractCegarLoop]: Abstraction has 2148 states and 2870 transitions. [2025-02-08 08:00:54,557 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 08:00:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2870 transitions. [2025-02-08 08:00:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 08:00:54,558 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:54,558 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 08:00:54,571 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 08:00:54,758 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 08:00:54,759 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr536REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:54,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:54,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1676441369, now seen corresponding path program 1 times [2025-02-08 08:00:54,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:54,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801721970] [2025-02-08 08:00:54,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:54,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:54,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:54,766 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 08:00:54,767 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 08:00:54,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 08:00:54,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 08:00:54,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:54,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:54,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:00:54,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:54,955 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 08:00:54,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:54,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:54,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801721970] [2025-02-08 08:00:54,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801721970] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:54,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:54,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:00:54,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960765271] [2025-02-08 08:00:54,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:54,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:00:54,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:54,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:00:54,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:00:54,956 INFO L87 Difference]: Start difference. First operand 2148 states and 2870 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 08:00:55,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:55,017 INFO L93 Difference]: Finished difference Result 1837 states and 2434 transitions. [2025-02-08 08:00:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:00:55,018 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 08:00:55,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:55,022 INFO L225 Difference]: With dead ends: 1837 [2025-02-08 08:00:55,022 INFO L226 Difference]: Without dead ends: 1837 [2025-02-08 08:00:55,022 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 08:00:55,022 INFO L435 NwaCegarLoop]: 1190 mSDtfsCounter, 56 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3497 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 08:00:55,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3497 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:00:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2025-02-08 08:00:55,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1835. [2025-02-08 08:00:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1329 states have (on average 1.8021068472535742) internal successors, (2395), 1820 states have internal predecessors, (2395), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:00:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2432 transitions. [2025-02-08 08:00:55,037 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2432 transitions. Word has length 53 [2025-02-08 08:00:55,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:55,037 INFO L471 AbstractCegarLoop]: Abstraction has 1835 states and 2432 transitions. [2025-02-08 08:00:55,037 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 08:00:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2432 transitions. [2025-02-08 08:00:55,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-08 08:00:55,038 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:55,038 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 08:00:55,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 08:00:55,239 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 08:00:55,239 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr536REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:55,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:55,239 INFO L85 PathProgramCache]: Analyzing trace with hash -399615903, now seen corresponding path program 1 times [2025-02-08 08:00:55,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:55,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227900013] [2025-02-08 08:00:55,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:55,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:55,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:55,242 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 08:00:55,244 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 08:00:55,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 08:00:55,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 08:00:55,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:55,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:55,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:00:55,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:55,470 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 08:00:55,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 08:00:55,752 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 08:00:55,761 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 08:00:55,762 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 08:00:55,764 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 08:00:55,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:55,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:55,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227900013] [2025-02-08 08:00:55,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227900013] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:55,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:55,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:00:55,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076355402] [2025-02-08 08:00:55,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:55,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:00:55,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:55,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:00:55,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:00:55,766 INFO L87 Difference]: Start difference. First operand 1835 states and 2432 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 08:00:57,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:57,426 INFO L93 Difference]: Finished difference Result 1808 states and 2406 transitions. [2025-02-08 08:00:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:00:57,426 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 08:00:57,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:57,430 INFO L225 Difference]: With dead ends: 1808 [2025-02-08 08:00:57,430 INFO L226 Difference]: Without dead ends: 1808 [2025-02-08 08:00:57,430 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 08:00:57,431 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 1686 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:57,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1052 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-08 08:00:57,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2025-02-08 08:00:57,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1358. [2025-02-08 08:00:57,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 895 states have (on average 1.7318435754189945) internal successors, (1550), 1346 states have internal predecessors, (1550), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:00:57,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1581 transitions. [2025-02-08 08:00:57,446 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1581 transitions. Word has length 61 [2025-02-08 08:00:57,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:57,446 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1581 transitions. [2025-02-08 08:00:57,446 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 08:00:57,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1581 transitions. [2025-02-08 08:00:57,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 08:00:57,447 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:57,447 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 08:00:57,457 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 08:00:57,647 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 08:00:57,648 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr529REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:57,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:57,648 INFO L85 PathProgramCache]: Analyzing trace with hash 424818099, now seen corresponding path program 1 times [2025-02-08 08:00:57,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:57,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102930165] [2025-02-08 08:00:57,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:57,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:57,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:57,651 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 08:00:57,652 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 08:00:57,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 08:00:57,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 08:00:57,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:00:57,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:00:57,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:00:57,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:00:57,849 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 08:00:57,858 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 08:00:57,874 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 08:00:57,881 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 08:00:57,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:00:57,881 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:00:57,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102930165] [2025-02-08 08:00:57,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102930165] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:00:57,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:00:57,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:00:57,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696556241] [2025-02-08 08:00:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:00:57,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:00:57,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:00:57,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:00:57,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:00:57,882 INFO L87 Difference]: Start difference. First operand 1358 states and 1581 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 08:00:59,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:00:59,759 INFO L93 Difference]: Finished difference Result 1357 states and 1580 transitions. [2025-02-08 08:00:59,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:00:59,760 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 08:00:59,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:00:59,762 INFO L225 Difference]: With dead ends: 1357 [2025-02-08 08:00:59,762 INFO L226 Difference]: Without dead ends: 1357 [2025-02-08 08:00:59,762 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 08:00:59,763 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 2 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:00:59,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3104 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 08:00:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2025-02-08 08:00:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1357. [2025-02-08 08:00:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 895 states have (on average 1.7307262569832402) internal successors, (1549), 1345 states have internal predecessors, (1549), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:00:59,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1580 transitions. [2025-02-08 08:00:59,777 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1580 transitions. Word has length 66 [2025-02-08 08:00:59,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:00:59,777 INFO L471 AbstractCegarLoop]: Abstraction has 1357 states and 1580 transitions. [2025-02-08 08:00:59,777 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 08:00:59,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1580 transitions. [2025-02-08 08:00:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 08:00:59,778 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:00:59,778 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 08:00:59,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-08 08:00:59,978 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 08:00:59,979 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr530REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:00:59,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:00:59,979 INFO L85 PathProgramCache]: Analyzing trace with hash 424818100, now seen corresponding path program 1 times [2025-02-08 08:00:59,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:00:59,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704491079] [2025-02-08 08:00:59,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:00:59,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:00:59,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:00:59,982 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 08:00:59,983 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 08:01:00,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 08:01:00,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 08:01:00,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:01:00,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:01:00,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:01:00,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:01:00,181 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 08:01:00,192 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 08:01:00,200 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 08:01:00,227 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 08:01:00,244 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 08:01:00,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:01:00,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:01:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704491079] [2025-02-08 08:01:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704491079] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:01:00,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:01:00,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:01:00,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628200674] [2025-02-08 08:01:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:01:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:01:00,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:01:00,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:01:00,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:01:00,245 INFO L87 Difference]: Start difference. First operand 1357 states and 1580 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 08:01:02,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:01:02,535 INFO L93 Difference]: Finished difference Result 1356 states and 1579 transitions. [2025-02-08 08:01:02,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:01:02,536 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 08:01:02,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:01:02,539 INFO L225 Difference]: With dead ends: 1356 [2025-02-08 08:01:02,542 INFO L226 Difference]: Without dead ends: 1356 [2025-02-08 08:01:02,542 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 08:01:02,543 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 1 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:01:02,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3090 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-08 08:01:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2025-02-08 08:01:02,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1356. [2025-02-08 08:01:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 894 states have (on average 1.7315436241610738) internal successors, (1548), 1344 states have internal predecessors, (1548), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:01:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1579 transitions. [2025-02-08 08:01:02,571 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1579 transitions. Word has length 66 [2025-02-08 08:01:02,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:01:02,571 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 1579 transitions. [2025-02-08 08:01:02,571 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 08:01:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1579 transitions. [2025-02-08 08:01:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 08:01:02,572 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:01:02,572 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 08:01:02,586 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 08:01:02,772 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 08:01:02,773 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:01:02,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:01:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1910195152, now seen corresponding path program 1 times [2025-02-08 08:01:02,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:01:02,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314826963] [2025-02-08 08:01:02,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:01:02,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:01:02,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:01:02,776 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 08:01:02,778 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 08:01:02,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 08:01:02,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 08:01:02,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:01:02,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:01:02,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 08:01:02,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:01:02,975 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 08:01:03,025 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 08:01:03,032 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 08:01:03,033 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:01:03,033 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:01:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314826963] [2025-02-08 08:01:03,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314826963] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:01:03,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:01:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:01:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856577635] [2025-02-08 08:01:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:01:03,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:01:03,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:01:03,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:01:03,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:01:03,035 INFO L87 Difference]: Start difference. First operand 1356 states and 1579 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 08:01:05,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:01:05,343 INFO L93 Difference]: Finished difference Result 1368 states and 1594 transitions. [2025-02-08 08:01:05,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:01:05,344 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 08:01:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:01:05,347 INFO L225 Difference]: With dead ends: 1368 [2025-02-08 08:01:05,347 INFO L226 Difference]: Without dead ends: 1368 [2025-02-08 08:01:05,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:01:05,348 INFO L435 NwaCegarLoop]: 1100 mSDtfsCounter, 58 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:01:05,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4075 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-08 08:01:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2025-02-08 08:01:05,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1362. [2025-02-08 08:01:05,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 899 states have (on average 1.7296996662958843) internal successors, (1555), 1349 states have internal predecessors, (1555), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-08 08:01:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1589 transitions. [2025-02-08 08:01:05,357 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1589 transitions. Word has length 74 [2025-02-08 08:01:05,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:01:05,358 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1589 transitions. [2025-02-08 08:01:05,358 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 08:01:05,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1589 transitions. [2025-02-08 08:01:05,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 08:01:05,358 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:01:05,358 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 08:01:05,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-08 08:01:05,559 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 08:01:05,559 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:01:05,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:01:05,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1910195153, now seen corresponding path program 1 times [2025-02-08 08:01:05,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:01:05,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947497755] [2025-02-08 08:01:05,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:01:05,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:01:05,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:01:05,562 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 08:01:05,563 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 08:01:05,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 08:01:05,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 08:01:05,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:01:05,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:01:05,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:01:05,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:01:05,779 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 08:01:05,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:01:05,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:01:05,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947497755] [2025-02-08 08:01:05,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947497755] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:01:05,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:01:05,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:01:05,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269646563] [2025-02-08 08:01:05,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:01:05,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:01:05,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:01:05,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:01:05,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:01:05,781 INFO L87 Difference]: Start difference. First operand 1362 states and 1589 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 08:01:05,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:01:05,810 INFO L93 Difference]: Finished difference Result 1359 states and 1583 transitions. [2025-02-08 08:01:05,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:01:05,811 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 08:01:05,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:01:05,814 INFO L225 Difference]: With dead ends: 1359 [2025-02-08 08:01:05,814 INFO L226 Difference]: Without dead ends: 1359 [2025-02-08 08:01:05,814 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 08:01:05,814 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 0 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3475 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 08:01:05,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3475 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:01:05,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2025-02-08 08:01:05,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1359. [2025-02-08 08:01:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 896 states have (on average 1.7310267857142858) internal successors, (1551), 1347 states have internal predecessors, (1551), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 08:01:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1583 transitions. [2025-02-08 08:01:05,826 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1583 transitions. Word has length 74 [2025-02-08 08:01:05,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:01:05,826 INFO L471 AbstractCegarLoop]: Abstraction has 1359 states and 1583 transitions. [2025-02-08 08:01:05,826 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 08:01:05,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1583 transitions. [2025-02-08 08:01:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-08 08:01:05,827 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:01:05,827 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 08:01:05,841 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 08:01:06,027 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 08:01:06,029 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:01:06,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:01:06,034 INFO L85 PathProgramCache]: Analyzing trace with hash 995726409, now seen corresponding path program 1 times [2025-02-08 08:01:06,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:01:06,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343200413] [2025-02-08 08:01:06,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:01:06,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:01:06,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:01:06,036 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 08:01:06,045 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 08:01:06,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 08:01:06,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 08:01:06,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:01:06,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:01:06,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:01:06,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:01:06,262 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 08:01:06,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:01:06,302 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 08:01:06,302 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:01:06,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343200413] [2025-02-08 08:01:06,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343200413] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:01:06,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:01:06,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 08:01:06,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783508077] [2025-02-08 08:01:06,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:01:06,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:01:06,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:01:06,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:01:06,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:01:06,304 INFO L87 Difference]: Start difference. First operand 1359 states and 1583 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 08:01:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:01:06,438 INFO L93 Difference]: Finished difference Result 1371 states and 1600 transitions. [2025-02-08 08:01:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:01:06,442 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 08:01:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:01:06,445 INFO L225 Difference]: With dead ends: 1371 [2025-02-08 08:01:06,446 INFO L226 Difference]: Without dead ends: 1371 [2025-02-08 08:01:06,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:01:06,447 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 8 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:01:06,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5786 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:01:06,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2025-02-08 08:01:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1369. [2025-02-08 08:01:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 905 states have (on average 1.7303867403314916) internal successors, (1566), 1356 states have internal predecessors, (1566), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 08:01:06,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1598 transitions. [2025-02-08 08:01:06,461 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1598 transitions. Word has length 75 [2025-02-08 08:01:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:01:06,461 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1598 transitions. [2025-02-08 08:01:06,461 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 08:01:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1598 transitions. [2025-02-08 08:01:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 08:01:06,462 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:01:06,462 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 08:01:06,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-08 08:01:06,666 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 08:01:06,666 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:01:06,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:01:06,667 INFO L85 PathProgramCache]: Analyzing trace with hash 120068624, now seen corresponding path program 2 times [2025-02-08 08:01:06,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:01:06,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760107802] [2025-02-08 08:01:06,667 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:01:06,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:01:06,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:01:06,669 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 08:01:06,670 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 08:01:06,917 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 08:01:18,548 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 08:01:18,548 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:01:18,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:01:18,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:01:18,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:01:18,692 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 08:01:18,692 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 08:01:18,705 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 08:01:18,834 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:01:18,834 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 08:01:18,857 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 08:01:18,867 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 08:01:18,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:01:18,933 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-02-08 08:01:18,934 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 08:01:18,945 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1229 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1229) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem36#1.base|)) is different from false [2025-02-08 08:01:18,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:01:18,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760107802] [2025-02-08 08:01:18,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760107802] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:01:18,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1397312658] [2025-02-08 08:01:18,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:01:18,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-08 08:01:18,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-08 08:01:18,969 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 08:01:18,970 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 08:01:19,188 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 08:01:19,880 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 08:01:19,880 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:01:19,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:01:19,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:01:19,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:01:20,011 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 08:01:20,012 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:01:20,198 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 08:01:20,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1397312658] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:01:20,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:01:20,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-02-08 08:01:20,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315068778] [2025-02-08 08:01:20,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:01:20,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:01:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:01:20,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:01:20,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2025-02-08 08:01:20,201 INFO L87 Difference]: Start difference. First operand 1369 states and 1598 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) [2025-02-08 08:01:29,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:01:29,809 INFO L93 Difference]: Finished difference Result 1393 states and 1629 transitions. [2025-02-08 08:01:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-02-08 08:01:29,809 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 78 [2025-02-08 08:01:29,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:01:29,811 INFO L225 Difference]: With dead ends: 1393 [2025-02-08 08:01:29,811 INFO L226 Difference]: Without dead ends: 1389 [2025-02-08 08:01:29,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756 [2025-02-08 08:01:29,813 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 929 mSDsluCounter, 12373 mSDsCounter, 0 mSdLazyCounter, 9643 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 13093 SdHoareTripleChecker+Invalid, 9664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 9643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:01:29,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 13093 Invalid, 9664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 9643 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2025-02-08 08:01:29,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2025-02-08 08:01:29,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1377. [2025-02-08 08:01:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 914 states have (on average 1.725382932166302) internal successors, (1577), 1364 states have internal predecessors, (1577), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 08:01:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1609 transitions. [2025-02-08 08:01:29,850 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1609 transitions. Word has length 78 [2025-02-08 08:01:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:01:29,850 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 1609 transitions. [2025-02-08 08:01:29,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2025-02-08 08:01:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1609 transitions. [2025-02-08 08:01:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 08:01:29,851 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:01:29,851 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:01:29,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-08 08:01:30,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2025-02-08 08:01:30,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-02-08 08:01:30,252 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:01:30,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:01:30,253 INFO L85 PathProgramCache]: Analyzing trace with hash 846774129, now seen corresponding path program 1 times [2025-02-08 08:01:30,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:01:30,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938376586] [2025-02-08 08:01:30,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:01:30,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:01:30,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:01:30,255 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:01:30,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-08 08:01:30,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 08:01:30,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 08:01:30,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:01:30,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:01:30,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:01:30,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:01:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:01:30,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:01:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:01:31,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:01:31,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938376586] [2025-02-08 08:01:31,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938376586] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:01:31,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:01:31,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-02-08 08:01:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554233139] [2025-02-08 08:01:31,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:01:31,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-08 08:01:31,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:01:31,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-08 08:01:31,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2025-02-08 08:01:31,088 INFO L87 Difference]: Start difference. First operand 1377 states and 1609 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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 08:01:32,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:01:32,423 INFO L93 Difference]: Finished difference Result 1401 states and 1648 transitions. [2025-02-08 08:01:32,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-08 08:01:32,424 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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 84 [2025-02-08 08:01:32,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:01:32,432 INFO L225 Difference]: With dead ends: 1401 [2025-02-08 08:01:32,432 INFO L226 Difference]: Without dead ends: 1395 [2025-02-08 08:01:32,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2025-02-08 08:01:32,433 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 25 mSDsluCounter, 15035 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16195 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:01:32,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 16195 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 08:01:32,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2025-02-08 08:01:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1395. [2025-02-08 08:01:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 932 states have (on average 1.7167381974248928) internal successors, (1600), 1382 states have internal predecessors, (1600), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 08:01:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1632 transitions. [2025-02-08 08:01:32,457 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1632 transitions. Word has length 84 [2025-02-08 08:01:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:01:32,457 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 1632 transitions. [2025-02-08 08:01:32,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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 08:01:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1632 transitions. [2025-02-08 08:01:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-08 08:01:32,457 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:01:32,457 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:01:32,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-08 08:01:32,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:01:32,658 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:01:32,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:01:32,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1945334321, now seen corresponding path program 2 times [2025-02-08 08:01:32,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:01:32,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305257213] [2025-02-08 08:01:32,659 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:01:32,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:01:32,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:01:32,661 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:01:32,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-08 08:01:32,844 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 96 statements into 2 equivalence classes.