./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:30:03,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:30:03,648 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:30:03,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:30:03,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:30:03,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:30:03,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:30:03,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:30:03,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:30:03,692 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:30:03,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:30:03,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:30:03,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:30:03,693 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:30:03,694 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:30:03,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:30:03,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:30:03,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:30:03,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:30:03,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:30:03,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:30:03,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:30:03,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:30:03,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:30:03,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:30:03,695 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 -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2025-01-10 00:30:03,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:30:04,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:30:04,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:30:04,013 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:30:04,014 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:30:04,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2025-01-10 00:30:05,328 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ea1e4421/6093e457a82c4e32bacaeabba7c0ed55/FLAG92e76fcc2 [2025-01-10 00:30:05,687 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:30:05,688 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2025-01-10 00:30:05,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ea1e4421/6093e457a82c4e32bacaeabba7c0ed55/FLAG92e76fcc2 [2025-01-10 00:30:05,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ea1e4421/6093e457a82c4e32bacaeabba7c0ed55 [2025-01-10 00:30:05,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:30:05,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:30:05,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:30:05,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:30:05,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:30:05,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:30:05" (1/1) ... [2025-01-10 00:30:05,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1574222b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:05, skipping insertion in model container [2025-01-10 00:30:05,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:30:05" (1/1) ... [2025-01-10 00:30:05,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:30:06,116 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,148 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,152 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,156 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,164 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,195 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,195 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,197 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,197 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,200 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,202 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,202 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,203 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:06,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:30:06,226 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-01-10 00:30:06,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ef3ff44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:06, skipping insertion in model container [2025-01-10 00:30:06,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:30:06,230 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-10 00:30:06,232 INFO L158 Benchmark]: Toolchain (without parser) took 501.20ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 90.9MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:30:06,234 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:30:06,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.93ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 90.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:30:06,236 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.93ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 90.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. 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_SAX_test8-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:30:08,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:30:08,423 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:30:08,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:30:08,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:30:08,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:30:08,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:30:08,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:30:08,457 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:30:08,457 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:30:08,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:30:08,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:30:08,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:30:08,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:30:08,458 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:30:08,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:30:08,458 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:30:08,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:30:08,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:30:08,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:30:08,458 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:30:08,458 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:30:08,459 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:30:08,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:30:08,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:30:08,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:30:08,461 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:30:08,461 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:30:08,461 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:30:08,461 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:30:08,462 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:30:08,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:30:08,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:30:08,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:30:08,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:30:08,463 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:30:08,463 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:30:08,463 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:30:08,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:30:08,463 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:30:08,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:30:08,463 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 -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2025-01-10 00:30:08,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:30:08,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:30:08,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:30:08,798 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:30:08,798 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:30:08,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2025-01-10 00:30:10,074 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2165fc47/fbf7ba236520467eac5e80af27143f7e/FLAG3a8a7781a [2025-01-10 00:30:10,398 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:30:10,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2025-01-10 00:30:10,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2165fc47/fbf7ba236520467eac5e80af27143f7e/FLAG3a8a7781a [2025-01-10 00:30:10,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2165fc47/fbf7ba236520467eac5e80af27143f7e [2025-01-10 00:30:10,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:30:10,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:30:10,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:30:10,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:30:10,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:30:10,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:30:10" (1/1) ... [2025-01-10 00:30:10,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130f3500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:10, skipping insertion in model container [2025-01-10 00:30:10,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:30:10" (1/1) ... [2025-01-10 00:30:10,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:30:11,017 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,054 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,058 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,062 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,070 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,108 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,111 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,112 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,115 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,117 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,118 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,119 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:30:11,154 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-10 00:30:11,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:30:11,210 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,236 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,237 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,243 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,250 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,277 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,278 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,279 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,281 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,284 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,288 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,289 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,290 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:30:11,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:30:11,308 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:30:11,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:30:11,450 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:30:11,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11 WrapperNode [2025-01-10 00:30:11,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:30:11,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:30:11,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:30:11,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:30:11,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,539 INFO L138 Inliner]: procedures = 180, calls = 291, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 995 [2025-01-10 00:30:11,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:30:11,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:30:11,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:30:11,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:30:11,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,650 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 220, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-01-10 00:30:11,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,704 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:30:11,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:30:11,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:30:11,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:30:11,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (1/1) ... [2025-01-10 00:30:11,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:30:11,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:11,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:30:11,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:30:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-10 00:30:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-10 00:30:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-10 00:30:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-10 00:30:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-10 00:30:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:30:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:30:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:30:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 00:30:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 00:30:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-10 00:30:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-10 00:30:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-10 00:30:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-10 00:30:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-10 00:30:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-10 00:30:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2025-01-10 00:30:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2025-01-10 00:30:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:30:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:30:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:30:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:30:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:30:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:30:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:30:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:30:12,029 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:30:12,031 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:30:12,045 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:30:12,074 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:30:12,091 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:30:15,607 INFO L? ?]: Removed 1099 outVars from TransFormulas that were not future-live. [2025-01-10 00:30:15,607 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:30:15,648 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:30:15,648 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2025-01-10 00:30:15,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:30:15 BoogieIcfgContainer [2025-01-10 00:30:15,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:30:15,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:30:15,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:30:15,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:30:15,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:30:10" (1/3) ... [2025-01-10 00:30:15,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2833476a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:30:15, skipping insertion in model container [2025-01-10 00:30:15,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:30:11" (2/3) ... [2025-01-10 00:30:15,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2833476a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:30:15, skipping insertion in model container [2025-01-10 00:30:15,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:30:15" (3/3) ... [2025-01-10 00:30:15,662 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-1.i [2025-01-10 00:30:15,675 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:30:15,676 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test8-1.i that has 7 procedures, 1107 locations, 1 initial locations, 37 loop locations, and 529 error locations. [2025-01-10 00:30:15,736 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:30:15,749 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;@79bce7fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:30:15,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2025-01-10 00:30:15,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 1097 states, 544 states have (on average 2.2113970588235294) internal successors, (1203), 1087 states have internal predecessors, (1203), 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) [2025-01-10 00:30:15,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:30:15,762 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:15,763 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:30:15,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:15,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:15,769 INFO L85 PathProgramCache]: Analyzing trace with hash 158947, now seen corresponding path program 1 times [2025-01-10 00:30:15,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:15,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028106976] [2025-01-10 00:30:15,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:15,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:15,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:15,783 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:15,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 00:30:15,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:30:15,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:30:15,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:15,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:15,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:30:15,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:15,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-01-10 00:30:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:16,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:16,007 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:16,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028106976] [2025-01-10 00:30:16,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028106976] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:16,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:16,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:30:16,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464621188] [2025-01-10 00:30:16,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:16,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:30:16,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:16,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:30:16,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:16,039 INFO L87 Difference]: Start difference. First operand has 1097 states, 544 states have (on average 2.2113970588235294) internal successors, (1203), 1087 states have internal predecessors, (1203), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:17,550 INFO L93 Difference]: Finished difference Result 1100 states and 1187 transitions. [2025-01-10 00:30:17,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:30:17,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:30:17,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:17,564 INFO L225 Difference]: With dead ends: 1100 [2025-01-10 00:30:17,564 INFO L226 Difference]: Without dead ends: 1098 [2025-01-10 00:30:17,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:17,568 INFO L435 NwaCegarLoop]: 697 mSDtfsCounter, 958 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:17,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 832 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-10 00:30:17,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2025-01-10 00:30:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1086. [2025-01-10 00:30:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 549 states have (on average 2.063752276867031) internal successors, (1133), 1075 states have internal predecessors, (1133), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2025-01-10 00:30:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1177 transitions. [2025-01-10 00:30:17,654 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1177 transitions. Word has length 3 [2025-01-10 00:30:17,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:17,655 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1177 transitions. [2025-01-10 00:30:17,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1177 transitions. [2025-01-10 00:30:17,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:30:17,656 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:17,656 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:30:17,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:30:17,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:17,857 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:17,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:17,858 INFO L85 PathProgramCache]: Analyzing trace with hash 158948, now seen corresponding path program 1 times [2025-01-10 00:30:17,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:17,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733863013] [2025-01-10 00:30:17,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:17,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:17,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:17,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:17,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 00:30:17,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:30:17,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:30:17,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:17,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:17,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:30:17,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:17,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:30:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:17,988 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:17,989 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:17,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733863013] [2025-01-10 00:30:17,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733863013] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:17,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:17,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:30:17,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185639976] [2025-01-10 00:30:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:17,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:30:17,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:17,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:30:17,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:17,991 INFO L87 Difference]: Start difference. First operand 1086 states and 1177 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:19,802 INFO L93 Difference]: Finished difference Result 1487 states and 1610 transitions. [2025-01-10 00:30:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:30:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:30:19,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:19,807 INFO L225 Difference]: With dead ends: 1487 [2025-01-10 00:30:19,807 INFO L226 Difference]: Without dead ends: 1487 [2025-01-10 00:30:19,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:19,808 INFO L435 NwaCegarLoop]: 968 mSDtfsCounter, 429 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:19,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1606 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-10 00:30:19,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2025-01-10 00:30:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1297. [2025-01-10 00:30:19,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 760 states have (on average 2.0539473684210527) internal successors, (1561), 1285 states have internal predecessors, (1561), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:30:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1607 transitions. [2025-01-10 00:30:19,840 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1607 transitions. Word has length 3 [2025-01-10 00:30:19,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:19,840 INFO L471 AbstractCegarLoop]: Abstraction has 1297 states and 1607 transitions. [2025-01-10 00:30:19,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1607 transitions. [2025-01-10 00:30:19,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 00:30:19,841 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:19,841 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:19,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 00:30:20,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:20,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:20,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:20,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2043492463, now seen corresponding path program 1 times [2025-01-10 00:30:20,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:20,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416116549] [2025-01-10 00:30:20,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:20,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:20,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:20,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:20,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 00:30:20,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:30:20,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:30:20,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:20,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:20,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:30:20,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:20,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:30:20,234 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2025-01-10 00:30:20,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2025-01-10 00:30:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:20,326 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:20,326 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:20,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416116549] [2025-01-10 00:30:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416116549] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:20,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:20,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:30:20,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528008278] [2025-01-10 00:30:20,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:20,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:30:20,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:20,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:30:20,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:30:20,328 INFO L87 Difference]: Start difference. First operand 1297 states and 1607 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2025-01-10 00:30:24,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:24,366 INFO L93 Difference]: Finished difference Result 2181 states and 2353 transitions. [2025-01-10 00:30:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:30:24,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2025-01-10 00:30:24,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:24,374 INFO L225 Difference]: With dead ends: 2181 [2025-01-10 00:30:24,374 INFO L226 Difference]: Without dead ends: 2181 [2025-01-10 00:30:24,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:30:24,375 INFO L435 NwaCegarLoop]: 1072 mSDtfsCounter, 1158 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:24,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 2343 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-01-10 00:30:24,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2025-01-10 00:30:24,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 1449. [2025-01-10 00:30:24,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 911 states have (on average 2.035126234906696) internal successors, (1854), 1436 states have internal predecessors, (1854), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:30:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1902 transitions. [2025-01-10 00:30:24,412 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1902 transitions. Word has length 8 [2025-01-10 00:30:24,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:24,413 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 1902 transitions. [2025-01-10 00:30:24,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2025-01-10 00:30:24,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1902 transitions. [2025-01-10 00:30:24,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:30:24,413 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:24,414 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:24,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 00:30:24,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:24,614 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:24,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:24,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1076243185, now seen corresponding path program 1 times [2025-01-10 00:30:24,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:24,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608074049] [2025-01-10 00:30:24,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:24,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:24,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:24,618 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:24,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 00:30:24,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:30:24,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:30:24,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:24,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:24,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:30:24,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:24,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:30:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:24,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:24,768 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:24,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608074049] [2025-01-10 00:30:24,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608074049] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:24,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:24,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:30:24,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187780870] [2025-01-10 00:30:24,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:24,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:30:24,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:24,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:30:24,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:24,769 INFO L87 Difference]: Start difference. First operand 1449 states and 1902 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:26,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:26,948 INFO L93 Difference]: Finished difference Result 2155 states and 2854 transitions. [2025-01-10 00:30:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:30:26,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 00:30:26,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:26,954 INFO L225 Difference]: With dead ends: 2155 [2025-01-10 00:30:26,955 INFO L226 Difference]: Without dead ends: 2155 [2025-01-10 00:30:26,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:26,955 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 713 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:26,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1741 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-10 00:30:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2025-01-10 00:30:26,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 1915. [2025-01-10 00:30:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1384 states have (on average 2.0166184971098264) internal successors, (2791), 1899 states have internal predecessors, (2791), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (26), 12 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-10 00:30:27,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2845 transitions. [2025-01-10 00:30:27,003 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2845 transitions. Word has length 9 [2025-01-10 00:30:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:27,004 INFO L471 AbstractCegarLoop]: Abstraction has 1915 states and 2845 transitions. [2025-01-10 00:30:27,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2845 transitions. [2025-01-10 00:30:27,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:30:27,004 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:27,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:27,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-10 00:30:27,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:27,208 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:27,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:27,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1076243184, now seen corresponding path program 1 times [2025-01-10 00:30:27,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:27,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271254979] [2025-01-10 00:30:27,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:27,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:27,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:27,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:27,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 00:30:27,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:30:27,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:30:27,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:27,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:27,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:30:27,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:27,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-01-10 00:30:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:27,363 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:27,363 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:27,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271254979] [2025-01-10 00:30:27,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271254979] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:27,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:27,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:30:27,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172903104] [2025-01-10 00:30:27,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:27,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:30:27,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:27,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:30:27,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:27,364 INFO L87 Difference]: Start difference. First operand 1915 states and 2845 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:28,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:28,574 INFO L93 Difference]: Finished difference Result 2261 states and 3211 transitions. [2025-01-10 00:30:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:30:28,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 00:30:28,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:28,582 INFO L225 Difference]: With dead ends: 2261 [2025-01-10 00:30:28,583 INFO L226 Difference]: Without dead ends: 2261 [2025-01-10 00:30:28,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:28,584 INFO L435 NwaCegarLoop]: 1018 mSDtfsCounter, 947 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:28,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 1327 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-10 00:30:28,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2025-01-10 00:30:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 1867. [2025-01-10 00:30:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1384 states have (on average 1.9689306358381502) internal successors, (2725), 1851 states have internal predecessors, (2725), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (26), 12 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-10 00:30:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2779 transitions. [2025-01-10 00:30:28,633 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2779 transitions. Word has length 9 [2025-01-10 00:30:28,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:28,633 INFO L471 AbstractCegarLoop]: Abstraction has 1867 states and 2779 transitions. [2025-01-10 00:30:28,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2779 transitions. [2025-01-10 00:30:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-10 00:30:28,634 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:28,634 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:28,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 00:30:28,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:28,835 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:28,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:28,836 INFO L85 PathProgramCache]: Analyzing trace with hash -74282946, now seen corresponding path program 1 times [2025-01-10 00:30:28,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:28,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349799639] [2025-01-10 00:30:28,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:28,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:28,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:28,839 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:28,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 00:30:28,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:30:28,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:30:28,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:28,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:28,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:30:28,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:28,981 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:30:28,981 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:30:28,982 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:30:28,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-01-10 00:30:29,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:30:29,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-01-10 00:30:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:29,048 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:29,048 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:29,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349799639] [2025-01-10 00:30:29,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349799639] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:29,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:29,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:30:29,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583493754] [2025-01-10 00:30:29,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:29,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:30:29,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:29,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:30:29,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:30:29,049 INFO L87 Difference]: Start difference. First operand 1867 states and 2779 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:29,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:29,544 INFO L93 Difference]: Finished difference Result 3081 states and 4322 transitions. [2025-01-10 00:30:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:30:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-10 00:30:29,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:29,556 INFO L225 Difference]: With dead ends: 3081 [2025-01-10 00:30:29,556 INFO L226 Difference]: Without dead ends: 3081 [2025-01-10 00:30:29,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:30:29,558 INFO L435 NwaCegarLoop]: 1055 mSDtfsCounter, 990 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:29,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 3150 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 00:30:29,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2025-01-10 00:30:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 1657. [2025-01-10 00:30:29,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1175 states have (on average 1.955744680851064) internal successors, (2298), 1642 states have internal predecessors, (2298), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:30:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2350 transitions. [2025-01-10 00:30:29,619 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2350 transitions. Word has length 10 [2025-01-10 00:30:29,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:29,619 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 2350 transitions. [2025-01-10 00:30:29,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2350 transitions. [2025-01-10 00:30:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:30:29,620 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:29,620 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:29,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 00:30:29,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:29,821 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:29,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1644781060, now seen corresponding path program 1 times [2025-01-10 00:30:29,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:29,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314307166] [2025-01-10 00:30:29,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:29,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:29,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:29,824 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:29,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 00:30:29,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:30:29,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:30:29,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:29,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:29,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:30:29,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:29,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-01-10 00:30:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:30,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:30,013 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:30,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314307166] [2025-01-10 00:30:30,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314307166] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:30,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:30,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:30:30,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26296391] [2025-01-10 00:30:30,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:30,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:30:30,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:30,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:30:30,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:30:30,014 INFO L87 Difference]: Start difference. First operand 1657 states and 2350 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:31,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:31,608 INFO L93 Difference]: Finished difference Result 1661 states and 2337 transitions. [2025-01-10 00:30:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:30:31,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2025-01-10 00:30:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:31,612 INFO L225 Difference]: With dead ends: 1661 [2025-01-10 00:30:31,612 INFO L226 Difference]: Without dead ends: 1661 [2025-01-10 00:30:31,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:30:31,613 INFO L435 NwaCegarLoop]: 593 mSDtfsCounter, 993 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:31,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1194 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-10 00:30:31,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2025-01-10 00:30:31,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1634. [2025-01-10 00:30:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1175 states have (on average 1.916595744680851) internal successors, (2252), 1619 states have internal predecessors, (2252), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:30:31,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2304 transitions. [2025-01-10 00:30:31,640 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2304 transitions. Word has length 19 [2025-01-10 00:30:31,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:31,641 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2304 transitions. [2025-01-10 00:30:31,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:31,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2304 transitions. [2025-01-10 00:30:31,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:30:31,642 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:31,642 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:31,651 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 [2025-01-10 00:30:31,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:31,842 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:31,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:31,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1644781059, now seen corresponding path program 1 times [2025-01-10 00:30:31,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:31,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011832547] [2025-01-10 00:30:31,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:31,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:31,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:31,845 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:31,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 00:30:31,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:30:31,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:30:31,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:31,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:31,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:30:31,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:31,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:30:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:32,108 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:32,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:32,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011832547] [2025-01-10 00:30:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011832547] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:32,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:32,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:30:32,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511602052] [2025-01-10 00:30:32,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:32,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:30:32,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:32,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:30:32,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:30:32,111 INFO L87 Difference]: Start difference. First operand 1634 states and 2304 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:34,459 INFO L93 Difference]: Finished difference Result 2004 states and 2467 transitions. [2025-01-10 00:30:34,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:30:34,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2025-01-10 00:30:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:34,464 INFO L225 Difference]: With dead ends: 2004 [2025-01-10 00:30:34,464 INFO L226 Difference]: Without dead ends: 2004 [2025-01-10 00:30:34,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:30:34,465 INFO L435 NwaCegarLoop]: 763 mSDtfsCounter, 832 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:34,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1816 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-01-10 00:30:34,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2025-01-10 00:30:34,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1748. [2025-01-10 00:30:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1289 states have (on average 1.8541505042668736) internal successors, (2390), 1733 states have internal predecessors, (2390), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:30:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2442 transitions. [2025-01-10 00:30:34,491 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2442 transitions. Word has length 19 [2025-01-10 00:30:34,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:34,491 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2442 transitions. [2025-01-10 00:30:34,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2442 transitions. [2025-01-10 00:30:34,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-10 00:30:34,492 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:34,493 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:34,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-10 00:30:34,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:34,693 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:34,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:34,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1930658273, now seen corresponding path program 1 times [2025-01-10 00:30:34,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:34,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79951567] [2025-01-10 00:30:34,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:34,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:34,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:34,698 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:34,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 00:30:34,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-10 00:30:34,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-10 00:30:34,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:34,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:34,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:30:34,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:34,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:30:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:35,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:30:35,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:35,519 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:35,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79951567] [2025-01-10 00:30:35,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79951567] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:30:35,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:30:35,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-01-10 00:30:35,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645653126] [2025-01-10 00:30:35,519 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:30:35,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:30:35,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:35,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:30:35,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:30:35,520 INFO L87 Difference]: Start difference. First operand 1748 states and 2442 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:42,164 INFO L93 Difference]: Finished difference Result 2360 states and 2957 transitions. [2025-01-10 00:30:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:30:42,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 38 [2025-01-10 00:30:42,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:42,172 INFO L225 Difference]: With dead ends: 2360 [2025-01-10 00:30:42,173 INFO L226 Difference]: Without dead ends: 2360 [2025-01-10 00:30:42,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-01-10 00:30:42,174 INFO L435 NwaCegarLoop]: 790 mSDtfsCounter, 1352 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 3333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:42,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 4003 Invalid, 3333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2025-01-10 00:30:42,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2025-01-10 00:30:42,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1912. [2025-01-10 00:30:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1453 states have (on average 1.8045423262216105) internal successors, (2622), 1897 states have internal predecessors, (2622), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:30:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2674 transitions. [2025-01-10 00:30:42,206 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2674 transitions. Word has length 38 [2025-01-10 00:30:42,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:42,206 INFO L471 AbstractCegarLoop]: Abstraction has 1912 states and 2674 transitions. [2025-01-10 00:30:42,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:42,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2674 transitions. [2025-01-10 00:30:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-10 00:30:42,209 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:42,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:42,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 00:30:42,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:42,414 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:42,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:42,415 INFO L85 PathProgramCache]: Analyzing trace with hash 32684899, now seen corresponding path program 1 times [2025-01-10 00:30:42,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:42,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846574954] [2025-01-10 00:30:42,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:42,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:42,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:42,418 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:42,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-10 00:30:42,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-10 00:30:42,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-10 00:30:42,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:42,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:42,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:30:42,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:42,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:42,884 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:42,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846574954] [2025-01-10 00:30:42,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846574954] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:42,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:42,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:30:42,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404344480] [2025-01-10 00:30:42,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:42,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:30:42,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:42,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:30:42,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:42,885 INFO L87 Difference]: Start difference. First operand 1912 states and 2674 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:43,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:43,100 INFO L93 Difference]: Finished difference Result 2125 states and 2801 transitions. [2025-01-10 00:30:43,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:30:43,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2025-01-10 00:30:43,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:43,106 INFO L225 Difference]: With dead ends: 2125 [2025-01-10 00:30:43,106 INFO L226 Difference]: Without dead ends: 2125 [2025-01-10 00:30:43,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:30:43,106 INFO L435 NwaCegarLoop]: 1292 mSDtfsCounter, 394 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:43,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 2291 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 00:30:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2025-01-10 00:30:43,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 1950. [2025-01-10 00:30:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1491 states have (on average 1.8162307176391683) internal successors, (2708), 1935 states have internal predecessors, (2708), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:30:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2760 transitions. [2025-01-10 00:30:43,134 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2760 transitions. Word has length 50 [2025-01-10 00:30:43,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:43,134 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 2760 transitions. [2025-01-10 00:30:43,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:30:43,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2760 transitions. [2025-01-10 00:30:43,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-10 00:30:43,136 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:43,136 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] [2025-01-10 00:30:43,148 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 [2025-01-10 00:30:43,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:43,340 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:43,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:43,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1351001443, now seen corresponding path program 1 times [2025-01-10 00:30:43,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:43,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276899742] [2025-01-10 00:30:43,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:43,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:43,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:43,343 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:43,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-10 00:30:43,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-10 00:30:43,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-10 00:30:43,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:43,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:43,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:30:43,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:43,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:43,604 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:43,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276899742] [2025-01-10 00:30:43,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276899742] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:43,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:43,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:30:43,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954325575] [2025-01-10 00:30:43,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:43,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:30:43,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:43,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:30:43,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:30:43,606 INFO L87 Difference]: Start difference. First operand 1950 states and 2760 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) [2025-01-10 00:30:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:43,696 INFO L93 Difference]: Finished difference Result 1639 states and 2324 transitions. [2025-01-10 00:30:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:30:43,697 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 [2025-01-10 00:30:43,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:43,702 INFO L225 Difference]: With dead ends: 1639 [2025-01-10 00:30:43,703 INFO L226 Difference]: Without dead ends: 1639 [2025-01-10 00:30:43,703 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 [2025-01-10 00:30:43,703 INFO L435 NwaCegarLoop]: 1016 mSDtfsCounter, 56 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:43,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2975 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:30:43,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2025-01-10 00:30:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1637. [2025-01-10 00:30:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1201 states have (on average 1.8900915903413822) internal successors, (2270), 1622 states have internal predecessors, (2270), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:30:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2322 transitions. [2025-01-10 00:30:43,731 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2322 transitions. Word has length 53 [2025-01-10 00:30:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:43,732 INFO L471 AbstractCegarLoop]: Abstraction has 1637 states and 2322 transitions. [2025-01-10 00:30:43,732 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) [2025-01-10 00:30:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2322 transitions. [2025-01-10 00:30:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-10 00:30:43,735 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:43,735 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] [2025-01-10 00:30:43,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-10 00:30:43,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:43,936 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:43,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:43,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2035519569, now seen corresponding path program 1 times [2025-01-10 00:30:43,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:43,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104592557] [2025-01-10 00:30:43,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:43,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:43,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:43,939 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:43,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-10 00:30:44,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 00:30:44,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 00:30:44,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:44,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:44,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:30:44,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:44,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:30:44,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:30:44,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-01-10 00:30:44,607 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:30:44,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-01-10 00:30:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:44,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:44,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:44,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104592557] [2025-01-10 00:30:44,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104592557] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:44,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:44,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:30:44,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491069861] [2025-01-10 00:30:44,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:44,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:30:44,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:44,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:30:44,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:30:44,617 INFO L87 Difference]: Start difference. First operand 1637 states and 2322 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) [2025-01-10 00:30:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:46,379 INFO L93 Difference]: Finished difference Result 1610 states and 2296 transitions. [2025-01-10 00:30:46,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:30:46,380 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 [2025-01-10 00:30:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:46,384 INFO L225 Difference]: With dead ends: 1610 [2025-01-10 00:30:46,385 INFO L226 Difference]: Without dead ends: 1610 [2025-01-10 00:30:46,385 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 [2025-01-10 00:30:46,385 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 908 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:46,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 889 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-10 00:30:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2025-01-10 00:30:46,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1174. [2025-01-10 00:30:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 781 states have (on average 1.7695262483994878) internal successors, (1382), 1162 states have internal predecessors, (1382), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:30:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1428 transitions. [2025-01-10 00:30:46,402 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1428 transitions. Word has length 61 [2025-01-10 00:30:46,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:46,403 INFO L471 AbstractCegarLoop]: Abstraction has 1174 states and 1428 transitions. [2025-01-10 00:30:46,403 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) [2025-01-10 00:30:46,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1428 transitions. [2025-01-10 00:30:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:30:46,405 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:46,406 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] [2025-01-10 00:30:46,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-10 00:30:46,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:46,606 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:46,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:46,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1154034494, now seen corresponding path program 1 times [2025-01-10 00:30:46,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:46,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790707890] [2025-01-10 00:30:46,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:46,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:46,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:46,609 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:46,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-10 00:30:46,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:30:46,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:30:46,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:46,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:46,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:30:46,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:46,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-01-10 00:30:46,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:30:46,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-01-10 00:30:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:46,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:46,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:46,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790707890] [2025-01-10 00:30:46,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790707890] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:46,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:46,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:30:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375067822] [2025-01-10 00:30:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:46,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:30:46,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:46,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:30:46,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:30:46,890 INFO L87 Difference]: Start difference. First operand 1174 states and 1428 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) [2025-01-10 00:30:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:48,430 INFO L93 Difference]: Finished difference Result 1173 states and 1427 transitions. [2025-01-10 00:30:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:30:48,431 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 [2025-01-10 00:30:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:48,438 INFO L225 Difference]: With dead ends: 1173 [2025-01-10 00:30:48,439 INFO L226 Difference]: Without dead ends: 1173 [2025-01-10 00:30:48,439 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 [2025-01-10 00:30:48,439 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 2 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:48,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2649 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-10 00:30:48,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2025-01-10 00:30:48,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173. [2025-01-10 00:30:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 781 states have (on average 1.768245838668374) internal successors, (1381), 1161 states have internal predecessors, (1381), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:30:48,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1427 transitions. [2025-01-10 00:30:48,455 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1427 transitions. Word has length 66 [2025-01-10 00:30:48,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:48,455 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1427 transitions. [2025-01-10 00:30:48,455 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) [2025-01-10 00:30:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1427 transitions. [2025-01-10 00:30:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:30:48,456 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:48,457 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] [2025-01-10 00:30:48,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-10 00:30:48,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:48,657 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:48,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:48,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1154034493, now seen corresponding path program 1 times [2025-01-10 00:30:48,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:48,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808779186] [2025-01-10 00:30:48,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:48,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:48,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:48,660 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:48,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-10 00:30:48,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:30:48,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:30:48,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:48,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:48,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 00:30:48,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:48,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:30:48,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:30:48,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-10 00:30:48,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-01-10 00:30:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:48,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:48,975 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:48,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808779186] [2025-01-10 00:30:48,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808779186] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:48,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:48,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:30:48,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634212723] [2025-01-10 00:30:48,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:48,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:30:48,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:48,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:30:48,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:30:48,977 INFO L87 Difference]: Start difference. First operand 1173 states and 1427 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) [2025-01-10 00:30:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:50,932 INFO L93 Difference]: Finished difference Result 1172 states and 1426 transitions. [2025-01-10 00:30:50,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:30:50,933 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 [2025-01-10 00:30:50,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:50,936 INFO L225 Difference]: With dead ends: 1172 [2025-01-10 00:30:50,936 INFO L226 Difference]: Without dead ends: 1172 [2025-01-10 00:30:50,936 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 [2025-01-10 00:30:50,936 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 1 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:50,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2656 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-10 00:30:50,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2025-01-10 00:30:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172. [2025-01-10 00:30:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 780 states have (on average 1.7692307692307692) internal successors, (1380), 1160 states have internal predecessors, (1380), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:30:50,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1426 transitions. [2025-01-10 00:30:50,947 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1426 transitions. Word has length 66 [2025-01-10 00:30:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:50,947 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1426 transitions. [2025-01-10 00:30:50,947 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) [2025-01-10 00:30:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1426 transitions. [2025-01-10 00:30:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:30:50,948 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:50,948 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:50,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-10 00:30:51,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:51,149 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:51,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash 929643401, now seen corresponding path program 1 times [2025-01-10 00:30:51,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277303566] [2025-01-10 00:30:51,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:51,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:51,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:51,151 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:51,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-10 00:30:51,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:30:51,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:30:51,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:51,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:51,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 00:30:51,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:51,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:30:51,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-01-10 00:30:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:51,426 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:51,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:51,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277303566] [2025-01-10 00:30:51,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277303566] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:51,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:51,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:30:51,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459975962] [2025-01-10 00:30:51,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:51,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:30:51,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:51,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:30:51,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:30:51,428 INFO L87 Difference]: Start difference. First operand 1172 states and 1426 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) [2025-01-10 00:30:53,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:53,394 INFO L93 Difference]: Finished difference Result 1184 states and 1441 transitions. [2025-01-10 00:30:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:30:53,395 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 [2025-01-10 00:30:53,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:53,400 INFO L225 Difference]: With dead ends: 1184 [2025-01-10 00:30:53,400 INFO L226 Difference]: Without dead ends: 1184 [2025-01-10 00:30:53,400 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 [2025-01-10 00:30:53,400 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 61 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:53,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 3370 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-10 00:30:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2025-01-10 00:30:53,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1178. [2025-01-10 00:30:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 785 states have (on average 1.7668789808917198) internal successors, (1387), 1165 states have internal predecessors, (1387), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (25), 9 states have call predecessors, (25), 22 states have call successors, (25) [2025-01-10 00:30:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1436 transitions. [2025-01-10 00:30:53,422 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1436 transitions. Word has length 74 [2025-01-10 00:30:53,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:53,423 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1436 transitions. [2025-01-10 00:30:53,423 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) [2025-01-10 00:30:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1436 transitions. [2025-01-10 00:30:53,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:30:53,424 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:53,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:30:53,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-10 00:30:53,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:53,625 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:53,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:53,626 INFO L85 PathProgramCache]: Analyzing trace with hash 929643402, now seen corresponding path program 1 times [2025-01-10 00:30:53,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:53,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643784908] [2025-01-10 00:30:53,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:53,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:53,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:53,628 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:53,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-10 00:30:53,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:30:53,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:30:53,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:53,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:53,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:30:53,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:53,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:30:53,883 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:53,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643784908] [2025-01-10 00:30:53,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643784908] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:30:53,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:30:53,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:30:53,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960891422] [2025-01-10 00:30:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:30:53,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:30:53,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:53,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:30:53,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:30:53,884 INFO L87 Difference]: Start difference. First operand 1178 states and 1436 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) [2025-01-10 00:30:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:53,924 INFO L93 Difference]: Finished difference Result 1175 states and 1430 transitions. [2025-01-10 00:30:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:30:53,925 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 [2025-01-10 00:30:53,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:53,928 INFO L225 Difference]: With dead ends: 1175 [2025-01-10 00:30:53,928 INFO L226 Difference]: Without dead ends: 1175 [2025-01-10 00:30:53,928 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 [2025-01-10 00:30:53,929 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 0 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2953 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 [2025-01-10 00:30:53,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2953 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:30:53,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2025-01-10 00:30:53,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2025-01-10 00:30:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 782 states have (on average 1.7685421994884911) internal successors, (1383), 1163 states have internal predecessors, (1383), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2025-01-10 00:30:53,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1430 transitions. [2025-01-10 00:30:53,945 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1430 transitions. Word has length 74 [2025-01-10 00:30:53,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:53,946 INFO L471 AbstractCegarLoop]: Abstraction has 1175 states and 1430 transitions. [2025-01-10 00:30:53,946 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) [2025-01-10 00:30:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1430 transitions. [2025-01-10 00:30:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-10 00:30:53,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:53,947 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] [2025-01-10 00:30:53,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-10 00:30:54,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:54,151 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:54,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:54,151 INFO L85 PathProgramCache]: Analyzing trace with hash -368571881, now seen corresponding path program 1 times [2025-01-10 00:30:54,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:54,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812545912] [2025-01-10 00:30:54,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:30:54,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:54,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:54,154 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:54,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-10 00:30:54,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 00:30:54,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 00:30:54,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:30:54,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:30:54,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:30:54,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:30:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:54,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:30:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:30:54,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:30:54,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812545912] [2025-01-10 00:30:54,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812545912] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:30:54,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:30:54,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-10 00:30:54,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267846310] [2025-01-10 00:30:54,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:30:54,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:30:54,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:30:54,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:30:54,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:30:54,446 INFO L87 Difference]: Start difference. First operand 1175 states and 1430 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) [2025-01-10 00:30:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:30:54,573 INFO L93 Difference]: Finished difference Result 1187 states and 1447 transitions. [2025-01-10 00:30:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:30:54,574 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 [2025-01-10 00:30:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:30:54,581 INFO L225 Difference]: With dead ends: 1187 [2025-01-10 00:30:54,584 INFO L226 Difference]: Without dead ends: 1187 [2025-01-10 00:30:54,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:30:54,585 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 8 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:30:54,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2956 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:30:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2025-01-10 00:30:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1185. [2025-01-10 00:30:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 791 states have (on average 1.7673830594184576) internal successors, (1398), 1172 states have internal predecessors, (1398), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2025-01-10 00:30:54,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1445 transitions. [2025-01-10 00:30:54,606 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1445 transitions. Word has length 75 [2025-01-10 00:30:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:30:54,606 INFO L471 AbstractCegarLoop]: Abstraction has 1185 states and 1445 transitions. [2025-01-10 00:30:54,607 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) [2025-01-10 00:30:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1445 transitions. [2025-01-10 00:30:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-01-10 00:30:54,607 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:30:54,607 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] [2025-01-10 00:30:54,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-10 00:30:54,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:54,815 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2025-01-10 00:30:54,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:30:54,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1341091593, now seen corresponding path program 2 times [2025-01-10 00:30:54,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:30:54,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365802507] [2025-01-10 00:30:54,816 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:30:54,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:30:54,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:30:54,818 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:30:54,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-01-10 00:30:54,971 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-01-10 00:31:26,470 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 00:31:26,470 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:31:26,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:31:26,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-10 00:31:26,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:31:26,562 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:31:26,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-01-10 00:31:26,576 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 [2025-01-10 00:31:26,723 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:31:26,723 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 [2025-01-10 00:31:26,757 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 [2025-01-10 00:31:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-10 00:31:26,772 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:31:26,835 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-01-10 00:31:26,835 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 [2025-01-10 00:31:26,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:31:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365802507] [2025-01-10 00:31:26,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365802507] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:31:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [982412541] [2025-01-10 00:31:26,870 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:31:26,870 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-01-10 00:31:26,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-01-10 00:31:26,872 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-01-10 00:31:26,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2025-01-10 00:31:27,154 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-01-10 00:31:28,026 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 00:31:28,026 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:31:28,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:31:28,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:31:28,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:31:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:31:28,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:31:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:31:28,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [982412541] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:31:28,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:31:28,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-01-10 00:31:28,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758473621] [2025-01-10 00:31:28,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:31:28,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 00:31:28,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:31:28,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 00:31:28,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=553, Unknown=6, NotChecked=0, Total=650 [2025-01-10 00:31:28,337 INFO L87 Difference]: Start difference. First operand 1185 states and 1445 transitions. Second operand has 24 states, 23 states have (on average 6.130434782608695) internal successors, (141), 23 states have internal predecessors, (141), 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)