./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:00:21,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:00:22,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 06:00:22,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:00:22,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:00:22,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:00:22,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:00:22,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:00:22,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:00:22,049 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:00:22,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:00:22,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:00:22,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:00:22,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:00:22,050 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:00:22,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:00:22,052 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:00:22,053 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:00:22,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:00:22,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:00:22,053 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-memcleanup) ) 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2025-02-08 06:00:22,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:00:22,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:00:22,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:00:22,317 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:00:22,317 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:00:22,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2025-02-08 06:00:23,703 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68283c7b0/41c9f28872ee454e9c9923be3b68012a/FLAG00c86d704 [2025-02-08 06:00:24,044 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:00:24,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2025-02-08 06:00:24,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68283c7b0/41c9f28872ee454e9c9923be3b68012a/FLAG00c86d704 [2025-02-08 06:00:24,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/68283c7b0/41c9f28872ee454e9c9923be3b68012a [2025-02-08 06:00:24,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:00:24,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:00:24,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:00:24,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:00:24,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:00:24,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:00:24" (1/1) ... [2025-02-08 06:00:24,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e42eceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:24, skipping insertion in model container [2025-02-08 06:00:24,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:00:24" (1/1) ... [2025-02-08 06:00:24,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:00:24,435 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,474 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,482 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,486 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,491 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,539 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,540 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,542 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,544 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,546 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,550 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,551 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,552 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,556 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:24,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:00:24,587 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 06:00:24,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2d21a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:24, skipping insertion in model container [2025-02-08 06:00:24,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:00:24,590 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 06:00:24,592 INFO L158 Benchmark]: Toolchain (without parser) took 511.74ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 101.6MB in the end (delta: 19.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 06:00:24,592 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:00:24,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.40ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 101.6MB in the end (delta: 18.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 06:00:24,594 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 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.40ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 101.6MB in the end (delta: 18.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:00:26,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:00:26,902 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 06:00:26,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:00:26,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:00:26,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:00:26,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:00:26,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:00:26,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:00:26,943 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:00:26,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:00:26,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:00:26,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:00:26,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:00:26,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 06:00:26,945 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:00:26,946 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:00:26,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:00:26,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:00:26,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:00:26,947 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-memcleanup) ) 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2025-02-08 06:00:27,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:00:27,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:00:27,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:00:27,292 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:00:27,295 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:00:27,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2025-02-08 06:00:28,733 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c52097c98/8e6789cdc6734d1280dca347862dbbdc/FLAG622225640 [2025-02-08 06:00:29,027 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:00:29,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2025-02-08 06:00:29,058 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c52097c98/8e6789cdc6734d1280dca347862dbbdc/FLAG622225640 [2025-02-08 06:00:29,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c52097c98/8e6789cdc6734d1280dca347862dbbdc [2025-02-08 06:00:29,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:00:29,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:00:29,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:00:29,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:00:29,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:00:29,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:00:29" (1/1) ... [2025-02-08 06:00:29,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2052aaac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:29, skipping insertion in model container [2025-02-08 06:00:29,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:00:29" (1/1) ... [2025-02-08 06:00:29,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:00:29,690 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,723 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,730 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,734 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,741 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,776 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,777 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,781 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,782 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,785 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,786 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,788 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,788 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,796 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:00:29,817 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 06:00:29,835 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:00:29,859 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,872 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,874 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,876 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,880 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,911 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,915 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,918 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,919 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,921 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,925 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,926 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,931 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,935 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:00:29,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:00:29,944 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:00:30,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:00:30,074 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:00:30,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30 WrapperNode [2025-02-08 06:00:30,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:00:30,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:00:30,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:00:30,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:00:30,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,180 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 986 [2025-02-08 06:00:30,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:00:30,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:00:30,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:00:30,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:00:30,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,210 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,321 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-02-08 06:00:30,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:00:30,397 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:00:30,399 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:00:30,399 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:00:30,400 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (1/1) ... [2025-02-08 06:00:30,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:00:30,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:00:30,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 06:00:30,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 06:00:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 06:00:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 06:00:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 06:00:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 06:00:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 06:00:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 06:00:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 06:00:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 06:00:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 06:00:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:00:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 06:00:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 06:00:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 06:00:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:00:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:00:30,662 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:00:30,664 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:00:38,862 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 06:00:38,944 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2025-02-08 06:00:38,945 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:00:38,959 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:00:38,960 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 06:00:38,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:00:38 BoogieIcfgContainer [2025-02-08 06:00:38,961 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:00:38,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:00:38,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:00:38,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:00:38,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:00:29" (1/3) ... [2025-02-08 06:00:38,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e257956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:00:38, skipping insertion in model container [2025-02-08 06:00:38,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:00:30" (2/3) ... [2025-02-08 06:00:38,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e257956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:00:38, skipping insertion in model container [2025-02-08 06:00:38,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:00:38" (3/3) ... [2025-02-08 06:00:38,973 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test3-1.i [2025-02-08 06:00:38,988 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:00:38,990 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test3-1.i that has 5 procedures, 204 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-08 06:00:39,031 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:00:39,042 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;@48d2d812, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:00:39,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 06:00:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 196 states, 186 states have (on average 1.6559139784946237) internal successors, (308), 189 states have internal predecessors, (308), 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) [2025-02-08 06:00:39,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-08 06:00:39,052 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:00:39,052 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-08 06:00:39,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:00:39,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:00:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash 346159, now seen corresponding path program 1 times [2025-02-08 06:00:39,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:00:39,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804159110] [2025-02-08 06:00:39,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:00:39,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:39,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:00:39,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:00:39,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 06:00:39,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 06:00:39,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 06:00:39,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:00:39,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:00:39,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:00:39,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:00:39,364 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_18| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18| (_ bv0 1)) |c_#valid|))) is different from true [2025-02-08 06:00:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:00:39,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:00:39,369 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:00:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804159110] [2025-02-08 06:00:39,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804159110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:00:39,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:00:39,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:00:39,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506443775] [2025-02-08 06:00:39,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:00:39,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:00:39,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:00:39,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:00:39,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 06:00:39,397 INFO L87 Difference]: Start difference. First operand has 196 states, 186 states have (on average 1.6559139784946237) internal successors, (308), 189 states have internal predecessors, (308), 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 4 states, 3 states have (on average 1.0) 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) [2025-02-08 06:00:43,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:00:44,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:00:44,709 INFO L93 Difference]: Finished difference Result 288 states and 379 transitions. [2025-02-08 06:00:44,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:00:44,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2025-02-08 06:00:44,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:00:44,729 INFO L225 Difference]: With dead ends: 288 [2025-02-08 06:00:44,729 INFO L226 Difference]: Without dead ends: 285 [2025-02-08 06:00:44,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 06:00:44,732 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 118 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 380 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:00:44,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 477 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 1 Unknown, 380 Unchecked, 5.2s Time] [2025-02-08 06:00:44,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2025-02-08 06:00:44,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 193. [2025-02-08 06:00:44,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 184 states have (on average 1.3043478260869565) internal successors, (240), 186 states have internal predecessors, (240), 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) [2025-02-08 06:00:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 250 transitions. [2025-02-08 06:00:44,779 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 250 transitions. Word has length 3 [2025-02-08 06:00:44,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:00:44,779 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 250 transitions. [2025-02-08 06:00:44,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2025-02-08 06:00:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 250 transitions. [2025-02-08 06:00:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 06:00:44,780 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:00:44,780 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:00:44,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 06:00:44,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:44,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:00:44,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:00:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash -176717077, now seen corresponding path program 1 times [2025-02-08 06:00:44,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:00:44,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390989364] [2025-02-08 06:00:44,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:00:44,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:44,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:00:44,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:00:44,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 06:00:45,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 06:00:45,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 06:00:45,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:00:45,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:00:45,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:00:45,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:00:45,266 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_19| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19|)))) is different from true [2025-02-08 06:00:45,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:00:45,267 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:00:45,267 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:00:45,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390989364] [2025-02-08 06:00:45,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390989364] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:00:45,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:00:45,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:00:45,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831555649] [2025-02-08 06:00:45,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:00:45,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:00:45,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:00:45,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:00:45,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 06:00:45,271 INFO L87 Difference]: Start difference. First operand 193 states and 250 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:00:49,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:00:50,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:00:50,125 INFO L93 Difference]: Finished difference Result 286 states and 375 transitions. [2025-02-08 06:00:50,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:00:50,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-08 06:00:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:00:50,137 INFO L225 Difference]: With dead ends: 286 [2025-02-08 06:00:50,137 INFO L226 Difference]: Without dead ends: 285 [2025-02-08 06:00:50,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 06:00:50,138 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 111 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 374 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-02-08 06:00:50,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 474 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 1 Unknown, 374 Unchecked, 4.8s Time] [2025-02-08 06:00:50,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2025-02-08 06:00:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 261. [2025-02-08 06:00:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.312) internal successors, (328), 252 states have internal predecessors, (328), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 06:00:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 342 transitions. [2025-02-08 06:00:50,154 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 342 transitions. Word has length 10 [2025-02-08 06:00:50,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:00:50,154 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 342 transitions. [2025-02-08 06:00:50,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:00:50,154 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 342 transitions. [2025-02-08 06:00:50,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 06:00:50,155 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:00:50,155 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:00:50,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 06:00:50,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:50,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:00:50,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:00:50,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1375615967, now seen corresponding path program 1 times [2025-02-08 06:00:50,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:00:50,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903917030] [2025-02-08 06:00:50,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:00:50,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:50,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:00:50,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:00:50,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 06:00:50,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 06:00:50,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 06:00:50,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:00:50,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:00:50,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 06:00:50,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:00:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:00:50,658 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:00:50,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:00:50,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903917030] [2025-02-08 06:00:50,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903917030] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:00:50,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:00:50,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:00:50,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397167773] [2025-02-08 06:00:50,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:00:50,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:00:50,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:00:50,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:00:50,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:00:50,660 INFO L87 Difference]: Start difference. First operand 261 states and 342 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-02-08 06:00:54,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:00:58,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:00:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:00:58,090 INFO L93 Difference]: Finished difference Result 349 states and 456 transitions. [2025-02-08 06:00:58,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:00:58,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 14 [2025-02-08 06:00:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:00:58,093 INFO L225 Difference]: With dead ends: 349 [2025-02-08 06:00:58,093 INFO L226 Difference]: Without dead ends: 347 [2025-02-08 06:00:58,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:00:58,094 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 134 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2025-02-08 06:00:58,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 669 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2025-02-08 06:00:58,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2025-02-08 06:00:58,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 346. [2025-02-08 06:00:58,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 335 states have (on average 1.31044776119403) internal successors, (439), 338 states have internal predecessors, (439), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 06:00:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 453 transitions. [2025-02-08 06:00:58,120 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 453 transitions. Word has length 14 [2025-02-08 06:00:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:00:58,120 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 453 transitions. [2025-02-08 06:00:58,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-02-08 06:00:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 453 transitions. [2025-02-08 06:00:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-08 06:00:58,121 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:00:58,121 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] [2025-02-08 06:00:58,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 06:00:58,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:58,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:00:58,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:00:58,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1155449328, now seen corresponding path program 1 times [2025-02-08 06:00:58,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:00:58,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210335081] [2025-02-08 06:00:58,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:00:58,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:58,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:00:58,328 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:00:58,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 06:00:58,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 06:00:58,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 06:00:58,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:00:58,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:00:58,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:00:58,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:00:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:00:58,530 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:00:58,530 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:00:58,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210335081] [2025-02-08 06:00:58,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210335081] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:00:58,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:00:58,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:00:58,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262500061] [2025-02-08 06:00:58,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:00:58,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:00:58,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:00:58,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:00:58,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:00:58,532 INFO L87 Difference]: Start difference. First operand 346 states and 453 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2025-02-08 06:00:58,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:00:58,695 INFO L93 Difference]: Finished difference Result 406 states and 513 transitions. [2025-02-08 06:00:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:00:58,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 49 [2025-02-08 06:00:58,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:00:58,697 INFO L225 Difference]: With dead ends: 406 [2025-02-08 06:00:58,697 INFO L226 Difference]: Without dead ends: 406 [2025-02-08 06:00:58,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:00:58,698 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 9 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:00:58,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 445 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:00:58,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-02-08 06:00:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2025-02-08 06:00:58,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 395 states have (on average 1.2632911392405064) internal successors, (499), 398 states have internal predecessors, (499), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 06:00:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 513 transitions. [2025-02-08 06:00:58,720 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 513 transitions. Word has length 49 [2025-02-08 06:00:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:00:58,720 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 513 transitions. [2025-02-08 06:00:58,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2025-02-08 06:00:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 513 transitions. [2025-02-08 06:00:58,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-08 06:00:58,722 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:00:58,722 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] [2025-02-08 06:00:58,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 06:00:58,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:58,923 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:00:58,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:00:58,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1189217713, now seen corresponding path program 1 times [2025-02-08 06:00:58,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:00:58,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408019389] [2025-02-08 06:00:58,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:00:58,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:58,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:00:58,925 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:00:58,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 06:00:59,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 06:00:59,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 06:00:59,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:00:59,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:00:59,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:00:59,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:00:59,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:00:59,157 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:00:59,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:00:59,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408019389] [2025-02-08 06:00:59,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408019389] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:00:59,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:00:59,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:00:59,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303419213] [2025-02-08 06:00:59,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:00:59,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:00:59,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:00:59,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:00:59,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:00:59,159 INFO L87 Difference]: Start difference. First operand 406 states and 513 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-02-08 06:00:59,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:00:59,322 INFO L93 Difference]: Finished difference Result 355 states and 429 transitions. [2025-02-08 06:00:59,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:00:59,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 49 [2025-02-08 06:00:59,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:00:59,325 INFO L225 Difference]: With dead ends: 355 [2025-02-08 06:00:59,325 INFO L226 Difference]: Without dead ends: 355 [2025-02-08 06:00:59,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:00:59,327 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 32 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:00:59,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 640 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:00:59,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2025-02-08 06:00:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2025-02-08 06:00:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 344 states have (on average 1.2063953488372092) internal successors, (415), 347 states have internal predecessors, (415), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 06:00:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 429 transitions. [2025-02-08 06:00:59,337 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 429 transitions. Word has length 49 [2025-02-08 06:00:59,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:00:59,337 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 429 transitions. [2025-02-08 06:00:59,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-02-08 06:00:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 429 transitions. [2025-02-08 06:00:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-08 06:00:59,338 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:00:59,339 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] [2025-02-08 06:00:59,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 06:00:59,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:59,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:00:59,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:00:59,540 INFO L85 PathProgramCache]: Analyzing trace with hash -719657782, now seen corresponding path program 1 times [2025-02-08 06:00:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:00:59,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898565417] [2025-02-08 06:00:59,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:00:59,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:00:59,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:00:59,542 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:00:59,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 06:00:59,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 06:00:59,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 06:00:59,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:00:59,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:00:59,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 06:00:59,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:00:59,716 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:00:59,717 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:00:59,718 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:00:59,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:00:59,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:00:59,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 06:00:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:00:59,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:00:59,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:00:59,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898565417] [2025-02-08 06:00:59,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898565417] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:00:59,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:00:59,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 06:00:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069848754] [2025-02-08 06:00:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:00:59,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 06:00:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:00:59,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 06:00:59,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:00:59,926 INFO L87 Difference]: Start difference. First operand 355 states and 429 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 06:01:00,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:00,537 INFO L93 Difference]: Finished difference Result 356 states and 439 transitions. [2025-02-08 06:01:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:01:00,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 49 [2025-02-08 06:01:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:00,540 INFO L225 Difference]: With dead ends: 356 [2025-02-08 06:01:00,540 INFO L226 Difference]: Without dead ends: 353 [2025-02-08 06:01:00,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 06:01:00,541 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 106 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:00,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 902 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 06:01:00,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2025-02-08 06:01:00,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 307. [2025-02-08 06:01:00,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 297 states have (on average 1.228956228956229) internal successors, (365), 300 states have internal predecessors, (365), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 06:01:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 377 transitions. [2025-02-08 06:01:00,550 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 377 transitions. Word has length 49 [2025-02-08 06:01:00,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:00,550 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 377 transitions. [2025-02-08 06:01:00,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 06:01:00,550 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 377 transitions. [2025-02-08 06:01:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-08 06:01:00,552 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:00,552 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:00,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 06:01:00,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:00,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:00,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:00,754 INFO L85 PathProgramCache]: Analyzing trace with hash 740829979, now seen corresponding path program 1 times [2025-02-08 06:01:00,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:00,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289861655] [2025-02-08 06:01:00,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:01:00,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:00,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:00,758 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:00,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 06:01:01,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-08 06:01:01,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-08 06:01:01,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:01:01,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:01,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:01:01,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:01:01,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:01:01,196 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:01,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289861655] [2025-02-08 06:01:01,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289861655] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:01:01,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:01:01,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:01:01,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908808399] [2025-02-08 06:01:01,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:01:01,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:01:01,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:01,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:01:01,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:01:01,198 INFO L87 Difference]: Start difference. First operand 307 states and 377 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:01,358 INFO L93 Difference]: Finished difference Result 347 states and 417 transitions. [2025-02-08 06:01:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:01:01,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2025-02-08 06:01:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:01,361 INFO L225 Difference]: With dead ends: 347 [2025-02-08 06:01:01,361 INFO L226 Difference]: Without dead ends: 347 [2025-02-08 06:01:01,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:01:01,362 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 9 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:01,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 423 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:01:01,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2025-02-08 06:01:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2025-02-08 06:01:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 337 states have (on average 1.2017804154302671) internal successors, (405), 340 states have internal predecessors, (405), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 06:01:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 417 transitions. [2025-02-08 06:01:01,374 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 417 transitions. Word has length 80 [2025-02-08 06:01:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:01,375 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 417 transitions. [2025-02-08 06:01:01,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 417 transitions. [2025-02-08 06:01:01,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-08 06:01:01,377 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:01,377 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:01,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 06:01:01,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:01,583 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:01,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:01,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1883623748, now seen corresponding path program 1 times [2025-02-08 06:01:01,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:01,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637999365] [2025-02-08 06:01:01,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:01:01,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:01,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:01,586 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:01,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 06:01:01,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-08 06:01:01,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-08 06:01:01,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:01:01,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:01,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:01:01,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:01:02,298 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:01:02,298 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:02,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637999365] [2025-02-08 06:01:02,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637999365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:01:02,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:01:02,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:01:02,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16017497] [2025-02-08 06:01:02,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:01:02,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:01:02,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:02,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:01:02,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:01:02,299 INFO L87 Difference]: Start difference. First operand 347 states and 417 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:06,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:01:10,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:01:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:13,160 INFO L93 Difference]: Finished difference Result 438 states and 526 transitions. [2025-02-08 06:01:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:01:13,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2025-02-08 06:01:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:13,163 INFO L225 Difference]: With dead ends: 438 [2025-02-08 06:01:13,163 INFO L226 Difference]: Without dead ends: 438 [2025-02-08 06:01:13,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:01:13,164 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 446 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:13,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 421 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2025-02-08 06:01:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2025-02-08 06:01:13,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 435. [2025-02-08 06:01:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 424 states have (on average 1.1981132075471699) internal successors, (508), 428 states have internal predecessors, (508), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 06:01:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 522 transitions. [2025-02-08 06:01:13,181 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 522 transitions. Word has length 80 [2025-02-08 06:01:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:13,182 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 522 transitions. [2025-02-08 06:01:13,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 522 transitions. [2025-02-08 06:01:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 06:01:13,186 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:13,186 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:13,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 06:01:13,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:13,387 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:13,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:13,387 INFO L85 PathProgramCache]: Analyzing trace with hash -864542862, now seen corresponding path program 1 times [2025-02-08 06:01:13,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:13,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109768977] [2025-02-08 06:01:13,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:01:13,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:13,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:13,390 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:13,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 06:01:13,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 06:01:13,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 06:01:13,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:01:13,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:13,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:01:13,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:01:13,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:01:13,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:13,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109768977] [2025-02-08 06:01:13,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109768977] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:01:13,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:01:13,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:01:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335130118] [2025-02-08 06:01:13,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:01:13,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:01:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:13,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:01:13,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:01:13,856 INFO L87 Difference]: Start difference. First operand 435 states and 522 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:13,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:13,989 INFO L93 Difference]: Finished difference Result 401 states and 466 transitions. [2025-02-08 06:01:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:01:13,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-02-08 06:01:13,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:13,992 INFO L225 Difference]: With dead ends: 401 [2025-02-08 06:01:13,992 INFO L226 Difference]: Without dead ends: 401 [2025-02-08 06:01:13,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:01:13,993 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 32 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:13,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 607 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:01:13,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2025-02-08 06:01:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2025-02-08 06:01:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 390 states have (on average 1.158974358974359) internal successors, (452), 394 states have internal predecessors, (452), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 06:01:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 466 transitions. [2025-02-08 06:01:14,003 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 466 transitions. Word has length 84 [2025-02-08 06:01:14,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:14,003 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 466 transitions. [2025-02-08 06:01:14,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 466 transitions. [2025-02-08 06:01:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 06:01:14,004 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:14,004 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:14,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 06:01:14,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:14,209 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:14,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1152309749, now seen corresponding path program 1 times [2025-02-08 06:01:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:14,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661436336] [2025-02-08 06:01:14,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:01:14,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:14,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:14,213 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:14,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 06:01:14,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 06:01:14,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 06:01:14,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:01:14,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:14,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:01:14,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:14,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 06:01:14,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:01:14,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:14,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661436336] [2025-02-08 06:01:14,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661436336] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:01:14,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:01:14,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:01:14,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795112758] [2025-02-08 06:01:14,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:01:14,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:01:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:14,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:01:14,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:01:14,688 INFO L87 Difference]: Start difference. First operand 401 states and 466 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:14,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:14,736 INFO L93 Difference]: Finished difference Result 404 states and 470 transitions. [2025-02-08 06:01:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:01:14,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-02-08 06:01:14,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:14,741 INFO L225 Difference]: With dead ends: 404 [2025-02-08 06:01:14,741 INFO L226 Difference]: Without dead ends: 404 [2025-02-08 06:01:14,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:01:14,742 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 0 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:14,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:01:14,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2025-02-08 06:01:14,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2025-02-08 06:01:14,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 392 states have (on average 1.1607142857142858) internal successors, (455), 397 states have internal predecessors, (455), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 06:01:14,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 470 transitions. [2025-02-08 06:01:14,752 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 470 transitions. Word has length 84 [2025-02-08 06:01:14,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:14,752 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 470 transitions. [2025-02-08 06:01:14,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:14,752 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 470 transitions. [2025-02-08 06:01:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-08 06:01:14,753 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:14,753 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:14,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 06:01:14,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:14,955 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:14,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:14,955 INFO L85 PathProgramCache]: Analyzing trace with hash -368692921, now seen corresponding path program 1 times [2025-02-08 06:01:14,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:14,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781730115] [2025-02-08 06:01:14,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:01:14,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:14,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:14,958 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:14,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 06:01:15,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-08 06:01:15,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-08 06:01:15,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:01:15,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:15,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:01:15,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:01:15,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:01:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:01:15,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:15,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781730115] [2025-02-08 06:01:15,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781730115] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:01:15,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:01:15,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 06:01:15,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109497970] [2025-02-08 06:01:15,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:01:15,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 06:01:15,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:15,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 06:01:15,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 06:01:15,648 INFO L87 Difference]: Start difference. First operand 404 states and 470 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:01:15,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:15,840 INFO L93 Difference]: Finished difference Result 415 states and 487 transitions. [2025-02-08 06:01:15,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 06:01:15,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 86 [2025-02-08 06:01:15,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:15,844 INFO L225 Difference]: With dead ends: 415 [2025-02-08 06:01:15,844 INFO L226 Difference]: Without dead ends: 415 [2025-02-08 06:01:15,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 06:01:15,845 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 4 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:15,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1333 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:01:15,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2025-02-08 06:01:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2025-02-08 06:01:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 400 states have (on average 1.1725) internal successors, (469), 405 states have internal predecessors, (469), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-02-08 06:01:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 485 transitions. [2025-02-08 06:01:15,867 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 485 transitions. Word has length 86 [2025-02-08 06:01:15,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:15,867 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 485 transitions. [2025-02-08 06:01:15,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:01:15,868 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 485 transitions. [2025-02-08 06:01:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-02-08 06:01:15,869 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:15,869 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:15,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 06:01:16,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:16,070 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:16,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1669869557, now seen corresponding path program 2 times [2025-02-08 06:01:16,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:16,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848131348] [2025-02-08 06:01:16,071 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 06:01:16,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:16,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:16,074 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:16,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 06:01:16,347 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 90 statements into 2 equivalence classes. [2025-02-08 06:01:16,548 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 06:01:16,548 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 06:01:16,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:16,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 06:01:16,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:17,368 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:01:17,368 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:01:17,369 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:01:17,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:01:17,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:01:17,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 06:01:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-08 06:01:17,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:01:17,568 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848131348] [2025-02-08 06:01:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848131348] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:01:17,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:01:17,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 06:01:17,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231600782] [2025-02-08 06:01:17,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:01:17,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 06:01:17,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:17,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 06:01:17,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 06:01:17,570 INFO L87 Difference]: Start difference. First operand 413 states and 485 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:18,057 INFO L93 Difference]: Finished difference Result 522 states and 615 transitions. [2025-02-08 06:01:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 06:01:18,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2025-02-08 06:01:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:18,061 INFO L225 Difference]: With dead ends: 522 [2025-02-08 06:01:18,061 INFO L226 Difference]: Without dead ends: 522 [2025-02-08 06:01:18,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-02-08 06:01:18,062 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 336 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:18,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 637 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 06:01:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2025-02-08 06:01:18,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 415. [2025-02-08 06:01:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 402 states have (on average 1.171641791044776) internal successors, (471), 407 states have internal predecessors, (471), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-02-08 06:01:18,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 487 transitions. [2025-02-08 06:01:18,075 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 487 transitions. Word has length 90 [2025-02-08 06:01:18,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:18,076 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 487 transitions. [2025-02-08 06:01:18,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:01:18,076 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 487 transitions. [2025-02-08 06:01:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-08 06:01:18,078 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:18,078 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:18,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 06:01:18,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:18,279 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:18,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1289128500, now seen corresponding path program 1 times [2025-02-08 06:01:18,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:18,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462315883] [2025-02-08 06:01:18,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:01:18,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:18,286 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:18,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 06:01:18,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-08 06:01:18,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-08 06:01:18,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:01:18,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:18,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:01:18,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 06:01:18,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:01:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:01:19,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:19,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462315883] [2025-02-08 06:01:19,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462315883] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:01:19,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:01:19,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 06:01:19,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562064510] [2025-02-08 06:01:19,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:01:19,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 06:01:19,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:19,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 06:01:19,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 06:01:19,203 INFO L87 Difference]: Start difference. First operand 415 states and 487 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:01:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:19,768 INFO L93 Difference]: Finished difference Result 423 states and 497 transitions. [2025-02-08 06:01:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 06:01:19,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 133 [2025-02-08 06:01:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:19,771 INFO L225 Difference]: With dead ends: 423 [2025-02-08 06:01:19,771 INFO L226 Difference]: Without dead ends: 421 [2025-02-08 06:01:19,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-08 06:01:19,772 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 6 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:19,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 900 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 06:01:19,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2025-02-08 06:01:19,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 419. [2025-02-08 06:01:19,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 406 states have (on average 1.1748768472906403) internal successors, (477), 411 states have internal predecessors, (477), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 06:01:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 492 transitions. [2025-02-08 06:01:19,783 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 492 transitions. Word has length 133 [2025-02-08 06:01:19,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:19,783 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 492 transitions. [2025-02-08 06:01:19,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:01:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 492 transitions. [2025-02-08 06:01:19,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-08 06:01:19,784 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:19,785 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:19,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-08 06:01:19,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:19,985 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:19,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:19,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1487938508, now seen corresponding path program 2 times [2025-02-08 06:01:19,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:19,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806732733] [2025-02-08 06:01:19,987 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 06:01:19,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:19,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:19,991 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:19,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 06:01:20,299 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 137 statements into 2 equivalence classes. [2025-02-08 06:01:20,573 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 137 of 137 statements. [2025-02-08 06:01:20,573 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 06:01:20,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:01:20,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 06:01:20,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:01:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 06:01:20,800 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:01:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 06:01:21,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:01:21,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806732733] [2025-02-08 06:01:21,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806732733] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:01:21,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:01:21,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-02-08 06:01:21,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23134064] [2025-02-08 06:01:21,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:01:21,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 06:01:21,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:01:21,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 06:01:21,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-02-08 06:01:21,247 INFO L87 Difference]: Start difference. First operand 419 states and 492 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:01:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:01:21,872 INFO L93 Difference]: Finished difference Result 431 states and 508 transitions. [2025-02-08 06:01:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-08 06:01:21,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 137 [2025-02-08 06:01:21,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:01:21,875 INFO L225 Difference]: With dead ends: 431 [2025-02-08 06:01:21,876 INFO L226 Difference]: Without dead ends: 427 [2025-02-08 06:01:21,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-02-08 06:01:21,877 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 8 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:01:21,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1342 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 06:01:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2025-02-08 06:01:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 425. [2025-02-08 06:01:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 412 states have (on average 1.1820388349514563) internal successors, (487), 417 states have internal predecessors, (487), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 06:01:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 502 transitions. [2025-02-08 06:01:21,890 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 502 transitions. Word has length 137 [2025-02-08 06:01:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:01:21,891 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 502 transitions. [2025-02-08 06:01:21,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:01:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 502 transitions. [2025-02-08 06:01:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-08 06:01:21,893 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:01:21,893 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:01:21,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 06:01:22,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:22,094 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:01:22,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:01:22,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1672347060, now seen corresponding path program 3 times [2025-02-08 06:01:22,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:01:22,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091214722] [2025-02-08 06:01:22,096 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 06:01:22,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:01:22,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:01:22,098 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:01:22,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 06:01:22,419 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 143 statements into 7 equivalence classes.