./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.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_SFH_test7-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:33:56,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:33:56,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:33:56,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:33:56,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:33:56,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:33:56,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:33:56,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:33:56,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:33:56,314 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:33:56,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:33:56,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:33:56,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:33:56,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:33:56,315 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:33:56,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:33:56,316 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:33:56,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:33:56,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:33:56,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:33:56,317 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:33:56,317 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:33:56,317 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:33:56,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:33:56,317 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:33:56,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:33:56,318 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:33:56,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:33:56,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:33:56,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:33:56,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:33:56,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:33:56,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:33:56,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:33:56,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:33:56,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:33:56,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:33:56,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:33:56,320 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 -> 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc [2025-01-10 00:33:56,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:33:56,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:33:56,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:33:56,544 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:33:56,544 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:33:56,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-01-10 00:33:57,720 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fce0da682/6323a3074e3146ca9ce32b13c5ee0935/FLAG6311bc149 [2025-01-10 00:33:58,056 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:33:58,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-01-10 00:33:58,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fce0da682/6323a3074e3146ca9ce32b13c5ee0935/FLAG6311bc149 [2025-01-10 00:33:58,297 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fce0da682/6323a3074e3146ca9ce32b13c5ee0935 [2025-01-10 00:33:58,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:33:58,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:33:58,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:33:58,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:33:58,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:33:58,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:33:58" (1/1) ... [2025-01-10 00:33:58,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba341e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:33:58, skipping insertion in model container [2025-01-10 00:33:58,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:33:58" (1/1) ... [2025-01-10 00:33:58,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:33:58,559 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 00:33:58,583 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 00:33:58,586 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 00:33:58,589 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 00:33:58,594 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:33:58,613 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 00:33:58,615 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 00:33:58,616 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 00:33:58,617 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 00:33:58,618 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 00:33:58,620 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 00:33:58,620 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 00:33:58,621 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 00:33:58,623 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 00:33:58,624 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 00:33:58,625 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 00:33:58,626 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 00:33:58,626 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 00:33:58,627 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 00:33:58,629 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 00:33:58,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:33:58,649 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 00:33:58,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ec576a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:33:58, skipping insertion in model container [2025-01-10 00:33:58,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:33:58,651 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-10 00:33:58,652 INFO L158 Benchmark]: Toolchain (without parser) took 352.33ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 84.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:33:58,654 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:33:58,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.55ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 84.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:33:58,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.55ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 84.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: 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_SFH_test7-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:34:00,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:34:00,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:34:00,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:34:00,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:34:00,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:34:00,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:34:00,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:34:00,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:34:00,657 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:34:00,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:34:00,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:34:00,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:34:00,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:34:00,658 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:34:00,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:34:00,658 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:34:00,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:34:00,659 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:34:00,660 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:34:00,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:34:00,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:34:00,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:34:00,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:34:00,661 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:34:00,661 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:34:00,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:34:00,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:34:00,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:34:00,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:34:00,661 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 -> 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc [2025-01-10 00:34:00,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:34:00,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:34:00,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:34:00,960 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:34:00,960 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:34:00,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-01-10 00:34:02,233 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb993350b/05594134e66e42258a6c7704b5691400/FLAG9a664360b [2025-01-10 00:34:02,514 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:34:02,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-01-10 00:34:02,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb993350b/05594134e66e42258a6c7704b5691400/FLAG9a664360b [2025-01-10 00:34:02,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb993350b/05594134e66e42258a6c7704b5691400 [2025-01-10 00:34:02,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:34:02,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:34:02,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:34:02,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:34:02,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:34:02,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:34:02" (1/1) ... [2025-01-10 00:34:02,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94a24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:02, skipping insertion in model container [2025-01-10 00:34:02,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:34:02" (1/1) ... [2025-01-10 00:34:02,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:34:02,836 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 00:34:02,855 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 00:34:02,858 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:02,861 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 00:34:02,866 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 00:34:02,900 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:02,901 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 00:34:02,903 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 00:34:02,903 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 00:34:02,905 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:02,909 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 00:34:02,911 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 00:34:02,911 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 00:34:02,914 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 00:34:02,915 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 00:34:02,916 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 00:34:02,918 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 00:34:02,921 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 00:34:02,921 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 00:34:02,924 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 00:34:02,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:34:02,936 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-10 00:34:02,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:34:02,979 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:02,991 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:02,992 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 00:34:02,998 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 00:34:03,003 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 00:34:03,024 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,024 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,029 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,029 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,030 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 00:34:03,031 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,031 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,031 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,034 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 00:34:03,035 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:34:03,040 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 00:34:03,041 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 00:34:03,041 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 00:34:03,041 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 00:34:03,043 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 00:34:03,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:34:03,054 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:34:03,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:34:03,177 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:34:03,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03 WrapperNode [2025-01-10 00:34:03,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:34:03,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:34:03,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:34:03,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:34:03,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,257 INFO L138 Inliner]: procedures = 179, calls = 323, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1152 [2025-01-10 00:34:03,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:34:03,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:34:03,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:34:03,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:34:03,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,335 INFO L175 MemorySlicer]: Split 301 memory accesses to 3 slices as follows [2, 265, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2025-01-10 00:34:03,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,374 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:34:03,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:34:03,415 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:34:03,415 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:34:03,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (1/1) ... [2025-01-10 00:34:03,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:34:03,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:03,449 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 00:34:03,452 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 00:34:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-10 00:34:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-10 00:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-10 00:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-10 00:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-10 00:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:34:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-10 00:34:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-10 00:34:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-10 00:34:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-10 00:34:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-10 00:34:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-10 00:34:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:34:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:34:03,658 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:34:03,660 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:34:03,674 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:34:03,719 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:34:03,745 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:34:06,886 INFO L? ?]: Removed 1292 outVars from TransFormulas that were not future-live. [2025-01-10 00:34:06,887 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:34:06,914 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:34:06,914 INFO L312 CfgBuilder]: Removed 35 assume(true) statements. [2025-01-10 00:34:06,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:34:06 BoogieIcfgContainer [2025-01-10 00:34:06,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:34:06,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:34:06,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:34:06,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:34:06,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:34:02" (1/3) ... [2025-01-10 00:34:06,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab6f2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:34:06, skipping insertion in model container [2025-01-10 00:34:06,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:34:03" (2/3) ... [2025-01-10 00:34:06,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab6f2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:34:06, skipping insertion in model container [2025-01-10 00:34:06,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:34:06" (3/3) ... [2025-01-10 00:34:06,924 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test7-2.i [2025-01-10 00:34:06,933 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:34:06,934 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test7-2.i that has 5 procedures, 1258 locations, 1 initial locations, 43 loop locations, and 628 error locations. [2025-01-10 00:34:06,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:34:06,993 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;@7c73f3da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:34:06,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 628 error locations. [2025-01-10 00:34:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 1248 states, 615 states have (on average 2.2390243902439027) internal successors, (1377), 1241 states have internal predecessors, (1377), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-10 00:34:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:34:07,003 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:07,003 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:34:07,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:07,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2025-01-10 00:34:07,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:07,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126808514] [2025-01-10 00:34:07,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:07,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:07,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:07,021 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 00:34:07,022 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 00:34:07,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:34:07,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:34:07,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:07,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:07,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:34:07,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:07,261 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 00:34:07,274 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 00:34:07,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:07,274 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:07,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126808514] [2025-01-10 00:34:07,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126808514] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:07,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:07,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:34:07,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320099133] [2025-01-10 00:34:07,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:07,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:34:07,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:07,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:34:07,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:34:07,302 INFO L87 Difference]: Start difference. First operand has 1248 states, 615 states have (on average 2.2390243902439027) internal successors, (1377), 1241 states have internal predecessors, (1377), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 00:34:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:08,756 INFO L93 Difference]: Finished difference Result 1417 states and 1493 transitions. [2025-01-10 00:34:08,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:34:08,757 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 00:34:08,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:08,768 INFO L225 Difference]: With dead ends: 1417 [2025-01-10 00:34:08,768 INFO L226 Difference]: Without dead ends: 1415 [2025-01-10 00:34:08,769 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 00:34:08,771 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 1146 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:08,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 901 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-10 00:34:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2025-01-10 00:34:08,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1229. [2025-01-10 00:34:08,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 615 states have (on average 2.094308943089431) internal successors, (1288), 1223 states have internal predecessors, (1288), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1296 transitions. [2025-01-10 00:34:08,854 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1296 transitions. Word has length 3 [2025-01-10 00:34:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:08,854 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1296 transitions. [2025-01-10 00:34:08,855 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 00:34:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1296 transitions. [2025-01-10 00:34:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:34:08,855 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:08,855 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:34:08,862 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 00:34:09,055 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 00:34:09,056 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:09,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:09,056 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2025-01-10 00:34:09,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:09,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528667178] [2025-01-10 00:34:09,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:09,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:09,059 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 00:34:09,060 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 00:34:09,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:34:09,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:34:09,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:09,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:09,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:34:09,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:09,173 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 00:34:09,192 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 00:34:09,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:09,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:09,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528667178] [2025-01-10 00:34:09,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528667178] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:09,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:09,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:34:09,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955468565] [2025-01-10 00:34:09,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:09,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:34:09,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:09,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:34:09,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:34:09,196 INFO L87 Difference]: Start difference. First operand 1229 states and 1296 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 00:34:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:11,283 INFO L93 Difference]: Finished difference Result 1824 states and 1934 transitions. [2025-01-10 00:34:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:34:11,284 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 00:34:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:11,295 INFO L225 Difference]: With dead ends: 1824 [2025-01-10 00:34:11,295 INFO L226 Difference]: Without dead ends: 1824 [2025-01-10 00:34:11,299 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 00:34:11,300 INFO L435 NwaCegarLoop]: 1004 mSDtfsCounter, 635 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:11,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1682 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-10 00:34:11,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2025-01-10 00:34:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1437. [2025-01-10 00:34:11,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 824 states have (on average 2.075242718446602) internal successors, (1710), 1431 states have internal predecessors, (1710), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1718 transitions. [2025-01-10 00:34:11,353 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1718 transitions. Word has length 3 [2025-01-10 00:34:11,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:11,353 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 1718 transitions. [2025-01-10 00:34:11,353 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 00:34:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1718 transitions. [2025-01-10 00:34:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 00:34:11,354 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:11,354 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:11,360 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 00:34:11,554 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 00:34:11,556 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:11,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:11,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1329215633, now seen corresponding path program 1 times [2025-01-10 00:34:11,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:11,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516081395] [2025-01-10 00:34:11,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:11,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:11,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:11,561 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 00:34:11,566 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 00:34:11,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:34:11,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:34:11,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:11,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:11,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:34:11,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:11,680 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 00:34:11,732 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2025-01-10 00:34:11,732 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 00:34:11,800 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 00:34:11,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:11,800 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:11,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516081395] [2025-01-10 00:34:11,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516081395] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:11,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:11,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:34:11,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561413621] [2025-01-10 00:34:11,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:11,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:11,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:11,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:11,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:11,802 INFO L87 Difference]: Start difference. First operand 1437 states and 1718 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 00:34:15,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:15,363 INFO L93 Difference]: Finished difference Result 2704 states and 2873 transitions. [2025-01-10 00:34:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:15,363 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 00:34:15,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:15,379 INFO L225 Difference]: With dead ends: 2704 [2025-01-10 00:34:15,379 INFO L226 Difference]: Without dead ends: 2704 [2025-01-10 00:34:15,380 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 00:34:15,384 INFO L435 NwaCegarLoop]: 1225 mSDtfsCounter, 1563 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:15,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 2581 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-01-10 00:34:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2025-01-10 00:34:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 1585. [2025-01-10 00:34:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 972 states have (on average 2.0534979423868314) internal successors, (1996), 1579 states have internal predecessors, (1996), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:15,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2004 transitions. [2025-01-10 00:34:15,410 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2004 transitions. Word has length 8 [2025-01-10 00:34:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:15,410 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2004 transitions. [2025-01-10 00:34:15,410 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 00:34:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2004 transitions. [2025-01-10 00:34:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:34:15,411 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:15,411 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:15,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 00:34:15,615 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 00:34:15,615 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:15,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:15,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2025-01-10 00:34:15,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:15,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894215433] [2025-01-10 00:34:15,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:15,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:15,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:15,619 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 00:34:15,621 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 00:34:15,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:34:15,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:34:15,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:15,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:15,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:34:15,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:15,738 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 00:34:15,745 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 00:34:15,745 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:15,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:15,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894215433] [2025-01-10 00:34:15,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894215433] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:15,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:15,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:34:15,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100910364] [2025-01-10 00:34:15,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:15,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:34:15,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:15,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:34:15,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:34:15,746 INFO L87 Difference]: Start difference. First operand 1585 states and 2004 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 00:34:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:16,997 INFO L93 Difference]: Finished difference Result 2120 states and 2765 transitions. [2025-01-10 00:34:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:34:17,001 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 00:34:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:17,005 INFO L225 Difference]: With dead ends: 2120 [2025-01-10 00:34:17,005 INFO L226 Difference]: Without dead ends: 2120 [2025-01-10 00:34:17,005 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 00:34:17,006 INFO L435 NwaCegarLoop]: 1157 mSDtfsCounter, 932 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:17,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1508 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-10 00:34:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2025-01-10 00:34:17,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1538. [2025-01-10 00:34:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 972 states have (on average 1.9938271604938271) internal successors, (1938), 1532 states have internal predecessors, (1938), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:17,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 1946 transitions. [2025-01-10 00:34:17,032 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 1946 transitions. Word has length 9 [2025-01-10 00:34:17,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:17,033 INFO L471 AbstractCegarLoop]: Abstraction has 1538 states and 1946 transitions. [2025-01-10 00:34:17,033 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 00:34:17,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 1946 transitions. [2025-01-10 00:34:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:34:17,033 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:17,033 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:17,040 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 00:34:17,237 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 00:34:17,237 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:17,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2025-01-10 00:34:17,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:17,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843674264] [2025-01-10 00:34:17,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:17,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:17,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:17,242 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 00:34:17,243 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 00:34:17,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:34:17,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:34:17,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:17,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:17,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:34:17,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:17,397 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 00:34:17,422 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 00:34:17,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:17,422 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:17,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843674264] [2025-01-10 00:34:17,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843674264] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:17,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:17,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:34:17,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397519252] [2025-01-10 00:34:17,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:17,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:34:17,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:17,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:34:17,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:34:17,423 INFO L87 Difference]: Start difference. First operand 1538 states and 1946 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 00:34:19,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:19,180 INFO L93 Difference]: Finished difference Result 2228 states and 2872 transitions. [2025-01-10 00:34:19,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:34:19,180 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 00:34:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:19,185 INFO L225 Difference]: With dead ends: 2228 [2025-01-10 00:34:19,185 INFO L226 Difference]: Without dead ends: 2228 [2025-01-10 00:34:19,185 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 00:34:19,186 INFO L435 NwaCegarLoop]: 1346 mSDtfsCounter, 702 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:19,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1867 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-10 00:34:19,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2025-01-10 00:34:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1565. [2025-01-10 00:34:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1009 states have (on average 1.973240832507433) internal successors, (1991), 1559 states have internal predecessors, (1991), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1999 transitions. [2025-01-10 00:34:19,211 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1999 transitions. Word has length 9 [2025-01-10 00:34:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:19,212 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 1999 transitions. [2025-01-10 00:34:19,212 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 00:34:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1999 transitions. [2025-01-10 00:34:19,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 00:34:19,212 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:19,213 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:19,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-10 00:34:19,413 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 00:34:19,413 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr521REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:19,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:19,414 INFO L85 PathProgramCache]: Analyzing trace with hash -780348543, now seen corresponding path program 1 times [2025-01-10 00:34:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:19,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089438205] [2025-01-10 00:34:19,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:19,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:19,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:19,417 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 00:34:19,418 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 00:34:19,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 00:34:19,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 00:34:19,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:19,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:19,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:34:19,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:34:19,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:19,571 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:19,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089438205] [2025-01-10 00:34:19,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089438205] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:19,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:19,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:34:19,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466278785] [2025-01-10 00:34:19,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:19,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:34:19,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:19,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:34:19,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:34:19,574 INFO L87 Difference]: Start difference. First operand 1565 states and 1999 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:19,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:19,815 INFO L93 Difference]: Finished difference Result 2177 states and 2746 transitions. [2025-01-10 00:34:19,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:34:19,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-01-10 00:34:19,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:19,820 INFO L225 Difference]: With dead ends: 2177 [2025-01-10 00:34:19,820 INFO L226 Difference]: Without dead ends: 2177 [2025-01-10 00:34:19,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:34:19,821 INFO L435 NwaCegarLoop]: 1369 mSDtfsCounter, 630 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:19,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2481 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 00:34:19,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2025-01-10 00:34:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1816. [2025-01-10 00:34:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1260 states have (on average 1.9841269841269842) internal successors, (2500), 1810 states have internal predecessors, (2500), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:19,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2508 transitions. [2025-01-10 00:34:19,844 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2508 transitions. Word has length 12 [2025-01-10 00:34:19,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:19,844 INFO L471 AbstractCegarLoop]: Abstraction has 1816 states and 2508 transitions. [2025-01-10 00:34:19,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2508 transitions. [2025-01-10 00:34:19,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:34:19,845 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:19,845 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:19,854 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 00:34:20,045 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 00:34:20,046 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:20,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1579031839, now seen corresponding path program 1 times [2025-01-10 00:34:20,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:20,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890339108] [2025-01-10 00:34:20,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:20,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:20,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:20,054 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 00:34:20,055 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 00:34:20,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:34:20,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:34:20,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:20,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:20,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:34:20,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:20,254 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 00:34:20,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:20,255 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:20,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890339108] [2025-01-10 00:34:20,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890339108] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:20,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:20,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:20,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196617779] [2025-01-10 00:34:20,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:20,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:20,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:20,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:20,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:20,257 INFO L87 Difference]: Start difference. First operand 1816 states and 2508 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:20,830 INFO L93 Difference]: Finished difference Result 2178 states and 2746 transitions. [2025-01-10 00:34:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:20,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-10 00:34:20,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:20,835 INFO L225 Difference]: With dead ends: 2178 [2025-01-10 00:34:20,835 INFO L226 Difference]: Without dead ends: 2178 [2025-01-10 00:34:20,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:20,836 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 635 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:20,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 3742 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 00:34:20,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2025-01-10 00:34:20,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 1818. [2025-01-10 00:34:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1262 states have (on average 1.9817749603803487) internal successors, (2501), 1812 states have internal predecessors, (2501), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:20,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2509 transitions. [2025-01-10 00:34:20,859 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2509 transitions. Word has length 13 [2025-01-10 00:34:20,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:20,859 INFO L471 AbstractCegarLoop]: Abstraction has 1818 states and 2509 transitions. [2025-01-10 00:34:20,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:20,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2509 transitions. [2025-01-10 00:34:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:34:20,860 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:20,861 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:20,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 00:34:21,061 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 00:34:21,061 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:21,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:21,062 INFO L85 PathProgramCache]: Analyzing trace with hash 866873660, now seen corresponding path program 1 times [2025-01-10 00:34:21,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:21,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328907510] [2025-01-10 00:34:21,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:21,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:21,066 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 00:34:21,067 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 00:34:21,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:34:21,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:34:21,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:21,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:21,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:34:21,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:21,198 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 00:34:21,222 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 00:34:21,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:21,223 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:21,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328907510] [2025-01-10 00:34:21,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328907510] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:21,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:21,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:34:21,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177459053] [2025-01-10 00:34:21,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:21,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:21,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:21,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:21,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:21,224 INFO L87 Difference]: Start difference. First operand 1818 states and 2509 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:22,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:22,916 INFO L93 Difference]: Finished difference Result 2002 states and 2636 transitions. [2025-01-10 00:34:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:22,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-10 00:34:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:22,922 INFO L225 Difference]: With dead ends: 2002 [2025-01-10 00:34:22,922 INFO L226 Difference]: Without dead ends: 2002 [2025-01-10 00:34:22,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:22,923 INFO L435 NwaCegarLoop]: 697 mSDtfsCounter, 1143 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:22,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 1442 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-10 00:34:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2025-01-10 00:34:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1795. [2025-01-10 00:34:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1262 states have (on average 1.9088748019017432) internal successors, (2409), 1789 states have internal predecessors, (2409), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2417 transitions. [2025-01-10 00:34:22,948 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2417 transitions. Word has length 13 [2025-01-10 00:34:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:22,948 INFO L471 AbstractCegarLoop]: Abstraction has 1795 states and 2417 transitions. [2025-01-10 00:34:22,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:22,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2417 transitions. [2025-01-10 00:34:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:34:22,949 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:22,949 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:22,958 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 00:34:23,150 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 00:34:23,150 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr331REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:23,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash 866873661, now seen corresponding path program 1 times [2025-01-10 00:34:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809010524] [2025-01-10 00:34:23,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:23,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:23,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:23,153 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 00:34:23,155 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 00:34:23,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:34:23,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:34:23,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:23,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:23,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:34:23,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:23,273 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 00:34:23,328 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 00:34:23,328 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:23,328 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:23,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809010524] [2025-01-10 00:34:23,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809010524] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:23,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:23,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:34:23,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806199557] [2025-01-10 00:34:23,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:23,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:23,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:23,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:23,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:23,329 INFO L87 Difference]: Start difference. First operand 1795 states and 2417 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:25,509 INFO L93 Difference]: Finished difference Result 2118 states and 2561 transitions. [2025-01-10 00:34:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:25,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-10 00:34:25,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:25,514 INFO L225 Difference]: With dead ends: 2118 [2025-01-10 00:34:25,514 INFO L226 Difference]: Without dead ends: 2118 [2025-01-10 00:34:25,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:25,516 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 613 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:25,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 2169 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-10 00:34:25,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2025-01-10 00:34:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1744. [2025-01-10 00:34:25,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1211 states have (on average 1.9091659785301405) internal successors, (2312), 1738 states have internal predecessors, (2312), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2320 transitions. [2025-01-10 00:34:25,556 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2320 transitions. Word has length 13 [2025-01-10 00:34:25,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:25,557 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2320 transitions. [2025-01-10 00:34:25,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:25,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2320 transitions. [2025-01-10 00:34:25,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 00:34:25,559 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:25,559 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:25,566 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 00:34:25,764 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 00:34:25,764 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr355REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:25,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:25,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1103335316, now seen corresponding path program 1 times [2025-01-10 00:34:25,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:25,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229307401] [2025-01-10 00:34:25,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:25,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:25,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:25,771 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 00:34:25,772 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 00:34:25,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 00:34:25,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 00:34:25,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:25,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:25,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:34:25,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:25,914 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 00:34:25,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:25,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:25,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229307401] [2025-01-10 00:34:25,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229307401] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:25,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:25,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:25,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829157817] [2025-01-10 00:34:25,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:25,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:25,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:25,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:25,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:25,915 INFO L87 Difference]: Start difference. First operand 1744 states and 2320 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:25,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:25,975 INFO L93 Difference]: Finished difference Result 1672 states and 2197 transitions. [2025-01-10 00:34:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:34:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-01-10 00:34:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:25,980 INFO L225 Difference]: With dead ends: 1672 [2025-01-10 00:34:25,980 INFO L226 Difference]: Without dead ends: 1672 [2025-01-10 00:34:25,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:25,980 INFO L435 NwaCegarLoop]: 1126 mSDtfsCounter, 45 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:25,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3355 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:34:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2025-01-10 00:34:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2025-01-10 00:34:25,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1158 states have (on average 1.890328151986183) internal successors, (2189), 1666 states have internal predecessors, (2189), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2197 transitions. [2025-01-10 00:34:25,997 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2197 transitions. Word has length 14 [2025-01-10 00:34:25,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:25,998 INFO L471 AbstractCegarLoop]: Abstraction has 1672 states and 2197 transitions. [2025-01-10 00:34:25,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2197 transitions. [2025-01-10 00:34:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 00:34:25,998 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:25,998 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:34:26,006 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 00:34:26,199 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 00:34:26,199 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr626ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:26,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:26,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1704574243, now seen corresponding path program 1 times [2025-01-10 00:34:26,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:26,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378799416] [2025-01-10 00:34:26,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:26,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:26,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:26,202 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 00:34:26,203 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 00:34:26,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 00:34:26,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 00:34:26,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:26,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:26,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:34:26,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:26,315 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:34:26,315 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:34:26,317 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 33 treesize of output 31 [2025-01-10 00:34:26,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:34:26,337 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 62 treesize of output 22 [2025-01-10 00:34:26,347 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 00:34:26,347 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:26,347 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:26,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378799416] [2025-01-10 00:34:26,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378799416] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:26,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:26,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:26,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361416290] [2025-01-10 00:34:26,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:26,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:26,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:26,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:26,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:26,348 INFO L87 Difference]: Start difference. First operand 1672 states and 2197 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:26,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:26,555 INFO L93 Difference]: Finished difference Result 2391 states and 2762 transitions. [2025-01-10 00:34:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:26,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-01-10 00:34:26,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:26,560 INFO L225 Difference]: With dead ends: 2391 [2025-01-10 00:34:26,560 INFO L226 Difference]: Without dead ends: 2391 [2025-01-10 00:34:26,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:26,561 INFO L435 NwaCegarLoop]: 1336 mSDtfsCounter, 1069 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:26,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 3779 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 00:34:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2025-01-10 00:34:26,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 1361. [2025-01-10 00:34:26,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 847 states have (on average 1.9079102715466352) internal successors, (1616), 1355 states have internal predecessors, (1616), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:26,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1624 transitions. [2025-01-10 00:34:26,593 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1624 transitions. Word has length 14 [2025-01-10 00:34:26,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:26,593 INFO L471 AbstractCegarLoop]: Abstraction has 1361 states and 1624 transitions. [2025-01-10 00:34:26,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:34:26,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1624 transitions. [2025-01-10 00:34:26,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:34:26,594 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:26,594 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 00:34:26,601 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 00:34:26,794 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 00:34:26,795 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:26,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash 495194974, now seen corresponding path program 1 times [2025-01-10 00:34:26,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:26,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948988494] [2025-01-10 00:34:26,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:26,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:26,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:26,798 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 00:34:26,799 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 00:34:26,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:34:26,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:34:26,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:26,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:26,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:34:26,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:26,952 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 00:34:26,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:26,952 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:26,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948988494] [2025-01-10 00:34:26,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948988494] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:26,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:26,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:34:26,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505765771] [2025-01-10 00:34:26,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:26,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:26,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:26,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:26,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:26,954 INFO L87 Difference]: Start difference. First operand 1361 states and 1624 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 00:34:28,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:28,548 INFO L93 Difference]: Finished difference Result 1735 states and 2092 transitions. [2025-01-10 00:34:28,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:28,548 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 00:34:28,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:28,554 INFO L225 Difference]: With dead ends: 1735 [2025-01-10 00:34:28,554 INFO L226 Difference]: Without dead ends: 1735 [2025-01-10 00:34:28,555 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 00:34:28,555 INFO L435 NwaCegarLoop]: 692 mSDtfsCounter, 898 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:28,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1515 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-10 00:34:28,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2025-01-10 00:34:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1338. [2025-01-10 00:34:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 847 states have (on average 1.8536009445100354) internal successors, (1570), 1332 states have internal predecessors, (1570), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1578 transitions. [2025-01-10 00:34:28,570 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1578 transitions. Word has length 19 [2025-01-10 00:34:28,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:28,570 INFO L471 AbstractCegarLoop]: Abstraction has 1338 states and 1578 transitions. [2025-01-10 00:34:28,570 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 00:34:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1578 transitions. [2025-01-10 00:34:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:34:28,570 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:28,571 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 00:34:28,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-10 00:34:28,771 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 00:34:28,771 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:28,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash 495194975, now seen corresponding path program 1 times [2025-01-10 00:34:28,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:28,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286010443] [2025-01-10 00:34:28,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:28,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:28,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:28,774 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 00:34:28,776 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 00:34:28,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:34:28,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:34:28,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:28,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:28,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:34:28,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:28,925 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 00:34:29,065 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 00:34:29,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:29,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:29,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286010443] [2025-01-10 00:34:29,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286010443] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:29,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:29,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:34:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099596040] [2025-01-10 00:34:29,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:29,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:29,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:29,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:29,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:29,067 INFO L87 Difference]: Start difference. First operand 1338 states and 1578 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 00:34:31,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:31,494 INFO L93 Difference]: Finished difference Result 1984 states and 2345 transitions. [2025-01-10 00:34:31,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:31,495 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 00:34:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:31,499 INFO L225 Difference]: With dead ends: 1984 [2025-01-10 00:34:31,499 INFO L226 Difference]: Without dead ends: 1984 [2025-01-10 00:34:31,500 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 00:34:31,501 INFO L435 NwaCegarLoop]: 1285 mSDtfsCounter, 739 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:31,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2575 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-10 00:34:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2025-01-10 00:34:31,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1452. [2025-01-10 00:34:31,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 961 states have (on average 1.777315296566077) internal successors, (1708), 1446 states have internal predecessors, (1708), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:31,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1716 transitions. [2025-01-10 00:34:31,524 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1716 transitions. Word has length 19 [2025-01-10 00:34:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:31,525 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 1716 transitions. [2025-01-10 00:34:31,525 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 00:34:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1716 transitions. [2025-01-10 00:34:31,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-10 00:34:31,526 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:31,526 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 00:34:31,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-10 00:34:31,726 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 00:34:31,727 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:31,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:31,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1533079263, now seen corresponding path program 1 times [2025-01-10 00:34:31,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:31,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489275947] [2025-01-10 00:34:31,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:31,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:31,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:31,737 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 00:34:31,738 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 00:34:31,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-10 00:34:31,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-10 00:34:31,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:31,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:31,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:34:31,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:31,916 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 00:34:32,040 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 00:34:32,040 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:34:32,360 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 00:34:32,360 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:32,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489275947] [2025-01-10 00:34:32,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489275947] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:34:32,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:34:32,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-01-10 00:34:32,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739623200] [2025-01-10 00:34:32,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:34:32,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:34:32,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:32,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:34:32,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:34:32,362 INFO L87 Difference]: Start difference. First operand 1452 states and 1716 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 00:34:38,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:38,782 INFO L93 Difference]: Finished difference Result 2340 states and 2835 transitions. [2025-01-10 00:34:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:34:38,783 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 00:34:38,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:38,787 INFO L225 Difference]: With dead ends: 2340 [2025-01-10 00:34:38,787 INFO L226 Difference]: Without dead ends: 2340 [2025-01-10 00:34:38,787 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 00:34:38,788 INFO L435 NwaCegarLoop]: 1312 mSDtfsCounter, 1427 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3974 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:38,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 3974 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2025-01-10 00:34:38,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2025-01-10 00:34:38,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 1616. [2025-01-10 00:34:38,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1125 states have (on average 1.7244444444444444) internal successors, (1940), 1610 states have internal predecessors, (1940), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:38,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 1948 transitions. [2025-01-10 00:34:38,808 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 1948 transitions. Word has length 38 [2025-01-10 00:34:38,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:38,808 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 1948 transitions. [2025-01-10 00:34:38,808 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 00:34:38,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 1948 transitions. [2025-01-10 00:34:38,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-10 00:34:38,811 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:38,811 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 00:34:38,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-10 00:34:39,011 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 00:34:39,012 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:39,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:39,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1285204927, now seen corresponding path program 1 times [2025-01-10 00:34:39,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:39,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166988922] [2025-01-10 00:34:39,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:39,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:39,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:39,015 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 00:34:39,016 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 00:34:39,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-10 00:34:39,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-10 00:34:39,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:39,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:39,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:34:39,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:39,226 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 00:34:39,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:39,226 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:39,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166988922] [2025-01-10 00:34:39,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166988922] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:39,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:39,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666824399] [2025-01-10 00:34:39,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:39,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:39,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:39,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:39,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:39,227 INFO L87 Difference]: Start difference. First operand 1616 states and 1948 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 00:34:39,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:39,286 INFO L93 Difference]: Finished difference Result 1305 states and 1512 transitions. [2025-01-10 00:34:39,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:34:39,286 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 00:34:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:39,297 INFO L225 Difference]: With dead ends: 1305 [2025-01-10 00:34:39,298 INFO L226 Difference]: Without dead ends: 1305 [2025-01-10 00:34:39,298 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 00:34:39,298 INFO L435 NwaCegarLoop]: 1063 mSDtfsCounter, 56 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3116 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:39,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3116 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:34:39,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2025-01-10 00:34:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1303. [2025-01-10 00:34:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 835 states have (on average 1.7988023952095809) internal successors, (1502), 1297 states have internal predecessors, (1502), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1510 transitions. [2025-01-10 00:34:39,307 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1510 transitions. Word has length 53 [2025-01-10 00:34:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:39,307 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1510 transitions. [2025-01-10 00:34:39,307 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 00:34:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1510 transitions. [2025-01-10 00:34:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-10 00:34:39,308 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:39,308 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 00:34:39,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-10 00:34:39,509 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 00:34:39,510 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:39,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:39,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2035150733, now seen corresponding path program 1 times [2025-01-10 00:34:39,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:39,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860522345] [2025-01-10 00:34:39,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:39,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:39,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:39,514 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 00:34:39,516 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 00:34:39,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 00:34:39,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 00:34:39,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:39,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:39,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:34:39,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:39,708 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 00:34:39,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:34:39,986 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 00:34:39,994 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:34:39,994 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 00:34:39,997 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 00:34:39,997 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:39,997 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:39,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860522345] [2025-01-10 00:34:39,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860522345] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:39,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:39,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:39,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244225062] [2025-01-10 00:34:39,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:39,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:34:39,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:39,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:34:39,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:39,998 INFO L87 Difference]: Start difference. First operand 1303 states and 1510 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 00:34:42,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:42,270 INFO L93 Difference]: Finished difference Result 1654 states and 1978 transitions. [2025-01-10 00:34:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:34:42,271 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 00:34:42,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:42,273 INFO L225 Difference]: With dead ends: 1654 [2025-01-10 00:34:42,273 INFO L226 Difference]: Without dead ends: 1654 [2025-01-10 00:34:42,273 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 00:34:42,274 INFO L435 NwaCegarLoop]: 514 mSDtfsCounter, 1133 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:42,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 1166 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-01-10 00:34:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2025-01-10 00:34:42,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1228. [2025-01-10 00:34:42,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 798 states have (on average 1.7418546365914787) internal successors, (1390), 1222 states have internal predecessors, (1390), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:42,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1398 transitions. [2025-01-10 00:34:42,283 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1398 transitions. Word has length 61 [2025-01-10 00:34:42,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:42,283 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1398 transitions. [2025-01-10 00:34:42,283 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 00:34:42,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1398 transitions. [2025-01-10 00:34:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:34:42,284 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:42,284 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 00:34:42,294 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 00:34:42,484 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 00:34:42,485 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:42,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:42,486 INFO L85 PathProgramCache]: Analyzing trace with hash -107720446, now seen corresponding path program 1 times [2025-01-10 00:34:42,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:42,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493540509] [2025-01-10 00:34:42,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:42,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:42,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:42,488 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 00:34:42,489 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 00:34:42,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:34:42,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:34:42,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:42,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:42,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:34:42,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:42,703 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 00:34:42,713 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 00:34:42,732 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 00:34:42,740 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 00:34:42,741 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:42,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493540509] [2025-01-10 00:34:42,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493540509] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:42,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:42,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:42,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951936377] [2025-01-10 00:34:42,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:42,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:34:42,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:42,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:34:42,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:42,743 INFO L87 Difference]: Start difference. First operand 1228 states and 1398 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 00:34:44,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:44,400 INFO L93 Difference]: Finished difference Result 1227 states and 1397 transitions. [2025-01-10 00:34:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:34:44,400 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 00:34:44,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:44,403 INFO L225 Difference]: With dead ends: 1227 [2025-01-10 00:34:44,403 INFO L226 Difference]: Without dead ends: 1227 [2025-01-10 00:34:44,403 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 00:34:44,403 INFO L435 NwaCegarLoop]: 1035 mSDtfsCounter, 2 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:44,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2677 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-10 00:34:44,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2025-01-10 00:34:44,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2025-01-10 00:34:44,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 798 states have (on average 1.7406015037593985) internal successors, (1389), 1221 states have internal predecessors, (1389), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:44,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1397 transitions. [2025-01-10 00:34:44,415 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1397 transitions. Word has length 66 [2025-01-10 00:34:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:44,416 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1397 transitions. [2025-01-10 00:34:44,416 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 00:34:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1397 transitions. [2025-01-10 00:34:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:34:44,417 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:44,417 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 00:34:44,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-01-10 00:34:44,621 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 00:34:44,621 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:44,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash -107720445, now seen corresponding path program 1 times [2025-01-10 00:34:44,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:44,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044127403] [2025-01-10 00:34:44,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:44,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:44,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:44,627 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 00:34:44,630 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 00:34:44,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:34:44,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:34:44,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:44,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:44,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 00:34:44,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:44,840 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 00:34:44,852 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 00:34:44,859 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 00:34:44,887 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 00:34:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:34:44,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:44,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:44,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044127403] [2025-01-10 00:34:44,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044127403] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:44,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:44,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:44,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127176423] [2025-01-10 00:34:44,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:44,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:34:44,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:44,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:34:44,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:34:44,900 INFO L87 Difference]: Start difference. First operand 1227 states and 1397 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 00:34:46,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:46,804 INFO L93 Difference]: Finished difference Result 1226 states and 1396 transitions. [2025-01-10 00:34:46,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:34:46,805 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 00:34:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:46,807 INFO L225 Difference]: With dead ends: 1226 [2025-01-10 00:34:46,807 INFO L226 Difference]: Without dead ends: 1226 [2025-01-10 00:34:46,807 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 00:34:46,812 INFO L435 NwaCegarLoop]: 1035 mSDtfsCounter, 1 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:46,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2685 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-10 00:34:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2025-01-10 00:34:46,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1226. [2025-01-10 00:34:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 797 states have (on average 1.7415307402760352) internal successors, (1388), 1220 states have internal predecessors, (1388), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 00:34:46,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1396 transitions. [2025-01-10 00:34:46,826 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1396 transitions. Word has length 66 [2025-01-10 00:34:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:46,829 INFO L471 AbstractCegarLoop]: Abstraction has 1226 states and 1396 transitions. [2025-01-10 00:34:46,829 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 00:34:46,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1396 transitions. [2025-01-10 00:34:46,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:34:46,830 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:46,830 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 00:34:46,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-10 00:34:47,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:47,031 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:47,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:47,031 INFO L85 PathProgramCache]: Analyzing trace with hash -213245239, now seen corresponding path program 1 times [2025-01-10 00:34:47,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:47,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910761067] [2025-01-10 00:34:47,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:47,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:47,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:47,033 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:34:47,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-01-10 00:34:47,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:34:47,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:34:47,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:47,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:47,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 00:34:47,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:47,241 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 00:34:47,285 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 00:34:47,292 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 00:34:47,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:47,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:47,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910761067] [2025-01-10 00:34:47,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910761067] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:47,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:47,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:34:47,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036956666] [2025-01-10 00:34:47,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:47,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:34:47,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:47,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:34:47,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:34:47,294 INFO L87 Difference]: Start difference. First operand 1226 states and 1396 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 00:34:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:49,139 INFO L93 Difference]: Finished difference Result 1238 states and 1411 transitions. [2025-01-10 00:34:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:34:49,140 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 00:34:49,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:49,143 INFO L225 Difference]: With dead ends: 1238 [2025-01-10 00:34:49,143 INFO L226 Difference]: Without dead ends: 1238 [2025-01-10 00:34:49,143 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 00:34:49,143 INFO L435 NwaCegarLoop]: 1025 mSDtfsCounter, 8 mSDsluCounter, 2735 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:49,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3760 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-10 00:34:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2025-01-10 00:34:49,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1232. [2025-01-10 00:34:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 802 states have (on average 1.7394014962593516) internal successors, (1395), 1225 states have internal predecessors, (1395), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-10 00:34:49,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1406 transitions. [2025-01-10 00:34:49,154 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1406 transitions. Word has length 74 [2025-01-10 00:34:49,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:49,154 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1406 transitions. [2025-01-10 00:34:49,154 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 00:34:49,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1406 transitions. [2025-01-10 00:34:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:34:49,155 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:49,155 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 00:34:49,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-01-10 00:34:49,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:49,356 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:49,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash -213245238, now seen corresponding path program 1 times [2025-01-10 00:34:49,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:49,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752668931] [2025-01-10 00:34:49,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:49,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:49,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:49,359 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:34:49,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-10 00:34:49,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:34:49,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:34:49,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:49,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:49,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:34:49,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:49,567 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 00:34:49,567 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:34:49,567 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:49,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752668931] [2025-01-10 00:34:49,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752668931] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:34:49,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:34:49,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:34:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124311690] [2025-01-10 00:34:49,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:34:49,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:34:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:49,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:34:49,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:34:49,569 INFO L87 Difference]: Start difference. First operand 1232 states and 1406 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 00:34:49,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:49,594 INFO L93 Difference]: Finished difference Result 1229 states and 1400 transitions. [2025-01-10 00:34:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:34:49,595 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 00:34:49,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:49,597 INFO L225 Difference]: With dead ends: 1229 [2025-01-10 00:34:49,597 INFO L226 Difference]: Without dead ends: 1229 [2025-01-10 00:34:49,597 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 00:34:49,597 INFO L435 NwaCegarLoop]: 1035 mSDtfsCounter, 0 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3100 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 00:34:49,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3100 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:34:49,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2025-01-10 00:34:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2025-01-10 00:34:49,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 799 states have (on average 1.7409261576971213) internal successors, (1391), 1223 states have internal predecessors, (1391), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 00:34:49,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1400 transitions. [2025-01-10 00:34:49,607 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1400 transitions. Word has length 74 [2025-01-10 00:34:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:49,608 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1400 transitions. [2025-01-10 00:34:49,608 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 00:34:49,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1400 transitions. [2025-01-10 00:34:49,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-10 00:34:49,608 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:49,608 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 00:34:49,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-10 00:34:49,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:49,809 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:49,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:49,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1576790433, now seen corresponding path program 1 times [2025-01-10 00:34:49,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:49,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690862474] [2025-01-10 00:34:49,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:34:49,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:49,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:49,813 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:34:49,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-01-10 00:34:49,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 00:34:50,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 00:34:50,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:34:50,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:34:50,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:34:50,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:34:50,044 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 00:34:50,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:34:50,085 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 00:34:50,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:34:50,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690862474] [2025-01-10 00:34:50,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690862474] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:34:50,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:34:50,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-10 00:34:50,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15604095] [2025-01-10 00:34:50,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:34:50,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:34:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:34:50,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:34:50,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:34:50,087 INFO L87 Difference]: Start difference. First operand 1229 states and 1400 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 00:34:50,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:34:50,184 INFO L93 Difference]: Finished difference Result 1241 states and 1417 transitions. [2025-01-10 00:34:50,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:34:50,185 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 00:34:50,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:34:50,187 INFO L225 Difference]: With dead ends: 1241 [2025-01-10 00:34:50,187 INFO L226 Difference]: Without dead ends: 1241 [2025-01-10 00:34:50,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:34:50,187 INFO L435 NwaCegarLoop]: 1035 mSDtfsCounter, 6 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5161 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:34:50,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5161 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:34:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2025-01-10 00:34:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1239. [2025-01-10 00:34:50,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 808 states have (on average 1.74009900990099) internal successors, (1406), 1232 states have internal predecessors, (1406), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 00:34:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1415 transitions. [2025-01-10 00:34:50,200 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1415 transitions. Word has length 75 [2025-01-10 00:34:50,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:34:50,200 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1415 transitions. [2025-01-10 00:34:50,200 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 00:34:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1415 transitions. [2025-01-10 00:34:50,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-01-10 00:34:50,201 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:34:50,201 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 00:34:50,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-01-10 00:34:50,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:50,401 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:34:50,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:34:50,402 INFO L85 PathProgramCache]: Analyzing trace with hash -873113527, now seen corresponding path program 2 times [2025-01-10 00:34:50,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:34:50,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995087616] [2025-01-10 00:34:50,402 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:34:50,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:34:50,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:34:50,404 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:34:50,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-01-10 00:34:50,547 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-01-10 00:35:24,012 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 00:35:24,012 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:35:24,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:35:24,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-10 00:35:24,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:35:24,098 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:35:24,099 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 00:35:24,110 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 00:35:24,231 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:35:24,231 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 00:35:24,255 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 00:35:24,266 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 00:35:24,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:35:24,319 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-01-10 00:35:24,320 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 00:35:24,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:35:24,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995087616] [2025-01-10 00:35:24,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995087616] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:35:24,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1186726915] [2025-01-10 00:35:24,351 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:35:24,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-01-10 00:35:24,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-01-10 00:35:24,354 INFO L229 MonitoredProcess]: Starting monitored process 24 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 00:35:24,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2025-01-10 00:35:24,622 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-01-10 00:35:25,377 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 00:35:25,377 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:35:25,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:35:25,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:35:25,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:35:25,504 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 00:35:25,504 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:35:25,683 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 00:35:25,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1186726915] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:35:25,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:35:25,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-01-10 00:35:25,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348075066] [2025-01-10 00:35:25,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:35:25,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 00:35:25,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:35:25,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 00:35:25,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=552, Unknown=7, NotChecked=0, Total=650 [2025-01-10 00:35:25,684 INFO L87 Difference]: Start difference. First operand 1239 states and 1415 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) [2025-01-10 00:35:32,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:35:32,145 INFO L93 Difference]: Finished difference Result 1644 states and 1944 transitions. [2025-01-10 00:35:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-10 00:35:32,149 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 78 [2025-01-10 00:35:32,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:35:32,151 INFO L225 Difference]: With dead ends: 1644 [2025-01-10 00:35:32,152 INFO L226 Difference]: Without dead ends: 1640 [2025-01-10 00:35:32,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=416, Invalid=2331, Unknown=9, NotChecked=0, Total=2756 [2025-01-10 00:35:32,158 INFO L435 NwaCegarLoop]: 672 mSDtfsCounter, 808 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 6265 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 9196 SdHoareTripleChecker+Invalid, 6291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:35:32,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 9196 Invalid, 6291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6265 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2025-01-10 00:35:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2025-01-10 00:35:32,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1247. [2025-01-10 00:35:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 817 states have (on average 1.7343941248470012) internal successors, (1417), 1240 states have internal predecessors, (1417), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 00:35:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1426 transitions. [2025-01-10 00:35:32,190 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1426 transitions. Word has length 78 [2025-01-10 00:35:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:35:32,191 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1426 transitions. [2025-01-10 00:35:32,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2025-01-10 00:35:32,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1426 transitions. [2025-01-10 00:35:32,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-10 00:35:32,191 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:35:32,191 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:35:32,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-10 00:35:32,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2025-01-10 00:35:32,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-01-10 00:35:32,592 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:35:32,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:35:32,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1358331766, now seen corresponding path program 1 times [2025-01-10 00:35:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:35:32,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013234097] [2025-01-10 00:35:32,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:35:32,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:35:32,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:35:32,596 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:35:32,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-01-10 00:35:32,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-10 00:35:32,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-10 00:35:32,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:35:32,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:35:32,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-10 00:35:32,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:35:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:35:32,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:35:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:35:33,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:35:33,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013234097] [2025-01-10 00:35:33,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013234097] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:35:33,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:35:33,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-01-10 00:35:33,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187095822] [2025-01-10 00:35:33,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:35:33,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-10 00:35:33,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:35:33,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-10 00:35:33,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2025-01-10 00:35:33,354 INFO L87 Difference]: Start difference. First operand 1247 states and 1426 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 00:35:34,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:35:34,561 INFO L93 Difference]: Finished difference Result 1271 states and 1465 transitions. [2025-01-10 00:35:34,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-10 00:35:34,562 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-01-10 00:35:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:35:34,563 INFO L225 Difference]: With dead ends: 1271 [2025-01-10 00:35:34,563 INFO L226 Difference]: Without dead ends: 1265 [2025-01-10 00:35:34,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2025-01-10 00:35:34,568 INFO L435 NwaCegarLoop]: 1035 mSDtfsCounter, 18 mSDsluCounter, 14441 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 15476 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:35:34,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 15476 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 00:35:34,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2025-01-10 00:35:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2025-01-10 00:35:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 835 states have (on average 1.7245508982035929) internal successors, (1440), 1258 states have internal predecessors, (1440), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-10 00:35:34,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1449 transitions. [2025-01-10 00:35:34,576 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1449 transitions. Word has length 84 [2025-01-10 00:35:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:35:34,577 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1449 transitions. [2025-01-10 00:35:34,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 00:35:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1449 transitions. [2025-01-10 00:35:34,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-10 00:35:34,578 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:35:34,578 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:35:34,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-01-10 00:35:34,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:35:34,778 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-01-10 00:35:34,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:35:34,779 INFO L85 PathProgramCache]: Analyzing trace with hash 617103626, now seen corresponding path program 2 times [2025-01-10 00:35:34,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:35:34,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843168130] [2025-01-10 00:35:34,779 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:35:34,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:35:34,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:35:34,781 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:35:34,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-01-10 00:35:34,955 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 96 statements into 2 equivalence classes.