./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:49:07,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:49:07,618 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-01-09 21:49:07,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:49:07,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:49:07,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:49:07,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:49:07,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:49:07,645 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 21:49:07,646 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 21:49:07,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:49:07,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:49:07,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:49:07,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:49:07,647 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:49:07,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:49:07,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:49:07,647 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:49:07,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:49:07,648 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:49:07,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:49:07,649 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:49:07,649 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:49:07,649 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:49:07,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:49:07,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:49:07,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:49:07,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:49:07,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:49:07,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:49:07,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:49:07,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:49:07,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:49:07,651 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 -> 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 [2025-01-09 21:49:07,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:49:07,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:49:07,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:49:07,892 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:49:07,892 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:49:07,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2025-01-09 21:49:09,013 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/86e2e8aa8/81e6b073f83b42be9beb6f803f35c15b/FLAGb0d1628ab [2025-01-09 21:49:09,319 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:49:09,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2025-01-09 21:49:09,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/86e2e8aa8/81e6b073f83b42be9beb6f803f35c15b/FLAGb0d1628ab [2025-01-09 21:49:09,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/86e2e8aa8/81e6b073f83b42be9beb6f803f35c15b [2025-01-09 21:49:09,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:49:09,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:49:09,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:49:09,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:49:09,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:49:09,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:49:09" (1/1) ... [2025-01-09 21:49:09,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619b6c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:09, skipping insertion in model container [2025-01-09 21:49:09,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:49:09" (1/1) ... [2025-01-09 21:49:09,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:49:09,806 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,838 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,842 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,847 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,867 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,867 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,869 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,869 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,870 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,872 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,872 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,872 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,875 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:09,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:49:09,891 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-01-09 21:49:09,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7507ecee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:09, skipping insertion in model container [2025-01-09 21:49:09,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:49:09,892 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-09 21:49:09,896 INFO L158 Benchmark]: Toolchain (without parser) took 301.44ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 90.1MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:49:09,896 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:49:09,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.94ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 90.1MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:49:09,897 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.94ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 90.1MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:49:11,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:49:11,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-01-09 21:49:11,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:49:11,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:49:11,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:49:11,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:49:11,703 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 21:49:11,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:49:11,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:49:11,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:49:11,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:49:11,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:49:11,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:49:11,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:49:11,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:49:11,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:49:11,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:49:11,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:49:11,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:49:11,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:49:11,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:49:11,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:49:11,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:49:11,708 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 21:49:11,708 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 21:49:11,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:49:11,708 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:49:11,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:49:11,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:49:11,708 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 -> 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 [2025-01-09 21:49:11,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:49:11,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:49:11,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:49:11,989 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:49:11,989 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:49:11,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2025-01-09 21:49:13,104 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac37c0d36/5db9aef485664bd0ab469b3a7427ea22/FLAGb74b99a37 [2025-01-09 21:49:13,348 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:49:13,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2025-01-09 21:49:13,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac37c0d36/5db9aef485664bd0ab469b3a7427ea22/FLAGb74b99a37 [2025-01-09 21:49:13,680 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac37c0d36/5db9aef485664bd0ab469b3a7427ea22 [2025-01-09 21:49:13,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:49:13,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:49:13,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:49:13,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:49:13,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:49:13,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:49:13" (1/1) ... [2025-01-09 21:49:13,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681711a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:13, skipping insertion in model container [2025-01-09 21:49:13,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:49:13" (1/1) ... [2025-01-09 21:49:13,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:49:13,954 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:13,987 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:13,990 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:13,993 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:13,997 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,018 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,018 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,021 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,021 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,023 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,024 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,025 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,026 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,029 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:49:14,046 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-09 21:49:14,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:49:14,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,101 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,103 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,107 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,131 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,134 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,135 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,135 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,137 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,138 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,138 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,139 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,141 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:49:14,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:49:14,145 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:49:14,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:49:14,236 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:49:14,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14 WrapperNode [2025-01-09 21:49:14,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:49:14,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:49:14,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:49:14,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:49:14,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,313 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1005 [2025-01-09 21:49:14,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:49:14,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:49:14,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:49:14,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:49:14,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,406 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 219, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-01-09 21:49:14,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,443 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:49:14,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:49:14,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:49:14,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:49:14,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (1/1) ... [2025-01-09 21:49:14,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:49:14,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:14,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:49:14,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:49:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-09 21:49:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-09 21:49:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-09 21:49:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-09 21:49:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-09 21:49:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 21:49:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 21:49:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 21:49:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 21:49:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 21:49:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 21:49:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 21:49:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 21:49:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 21:49:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 21:49:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:49:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:49:14,664 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:49:14,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:49:21,066 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2025-01-09 21:49:21,066 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:49:21,074 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:49:21,074 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2025-01-09 21:49:21,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:49:21 BoogieIcfgContainer [2025-01-09 21:49:21,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:49:21,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:49:21,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:49:21,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:49:21,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:49:13" (1/3) ... [2025-01-09 21:49:21,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348fa995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:49:21, skipping insertion in model container [2025-01-09 21:49:21,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:49:14" (2/3) ... [2025-01-09 21:49:21,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348fa995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:49:21, skipping insertion in model container [2025-01-09 21:49:21,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:49:21" (3/3) ... [2025-01-09 21:49:21,081 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-1.i [2025-01-09 21:49:21,090 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:49:21,091 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test3-1.i that has 6 procedures, 218 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-01-09 21:49:21,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:49:21,123 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;@663f36f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:49:21,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 21:49:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 194 states have (on average 1.6494845360824741) internal successors, (320), 203 states have internal predecessors, (320), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 21:49:21,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 21:49:21,133 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:21,133 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:49:21,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:21,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:21,141 INFO L85 PathProgramCache]: Analyzing trace with hash 185845993, now seen corresponding path program 1 times [2025-01-09 21:49:21,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037612611] [2025-01-09 21:49:21,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:21,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:21,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:21,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:21,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 21:49:21,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 21:49:21,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 21:49:21,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:21,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:21,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 21:49:21,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:49:21,299 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:21,299 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037612611] [2025-01-09 21:49:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037612611] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:21,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:21,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:49:21,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323331515] [2025-01-09 21:49:21,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:21,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:49:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:21,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:49:21,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:49:21,333 INFO L87 Difference]: Start difference. First operand has 210 states, 194 states have (on average 1.6494845360824741) internal successors, (320), 203 states have internal predecessors, (320), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:49:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:21,351 INFO L93 Difference]: Finished difference Result 208 states and 273 transitions. [2025-01-09 21:49:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:49:21,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-09 21:49:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:21,356 INFO L225 Difference]: With dead ends: 208 [2025-01-09 21:49:21,356 INFO L226 Difference]: Without dead ends: 206 [2025-01-09 21:49:21,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:49:21,363 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:21,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 21:49:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-01-09 21:49:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2025-01-09 21:49:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 192 states have (on average 1.3177083333333333) internal successors, (253), 199 states have internal predecessors, (253), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 21:49:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 271 transitions. [2025-01-09 21:49:21,390 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 271 transitions. Word has length 8 [2025-01-09 21:49:21,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:21,390 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 271 transitions. [2025-01-09 21:49:21,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:49:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 271 transitions. [2025-01-09 21:49:21,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 21:49:21,390 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:21,391 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:49:21,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:21,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:21,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:21,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:21,592 INFO L85 PathProgramCache]: Analyzing trace with hash 484221097, now seen corresponding path program 1 times [2025-01-09 21:49:21,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:21,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [996397317] [2025-01-09 21:49:21,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:21,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:21,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:21,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:21,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 21:49:21,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 21:49:21,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 21:49:21,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:21,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:21,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 21:49:21,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:21,743 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:21,744 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:21,744 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:21,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-01-09 21:49:21,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:49:21,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-01-09 21:49:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:49:21,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:21,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:21,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996397317] [2025-01-09 21:49:21,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996397317] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:21,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:21,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:49:21,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597434389] [2025-01-09 21:49:21,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:21,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:49:21,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:21,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:49:21,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:49:21,826 INFO L87 Difference]: Start difference. First operand 206 states and 271 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:49:22,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:22,225 INFO L93 Difference]: Finished difference Result 395 states and 526 transitions. [2025-01-09 21:49:22,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:49:22,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-09 21:49:22,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:22,228 INFO L225 Difference]: With dead ends: 395 [2025-01-09 21:49:22,228 INFO L226 Difference]: Without dead ends: 395 [2025-01-09 21:49:22,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:49:22,232 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 235 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:22,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 797 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 21:49:22,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2025-01-09 21:49:22,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 208. [2025-01-09 21:49:22,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 194 states have (on average 1.3144329896907216) internal successors, (255), 201 states have internal predecessors, (255), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 21:49:22,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 273 transitions. [2025-01-09 21:49:22,252 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 273 transitions. Word has length 10 [2025-01-09 21:49:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:22,253 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 273 transitions. [2025-01-09 21:49:22,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:49:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 273 transitions. [2025-01-09 21:49:22,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-09 21:49:22,256 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:22,256 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:49:22,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 21:49:22,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:22,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:22,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:22,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1759003898, now seen corresponding path program 1 times [2025-01-09 21:49:22,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:22,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707541992] [2025-01-09 21:49:22,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:22,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:22,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:22,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:22,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 21:49:22,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-09 21:49:22,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-09 21:49:22,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:22,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:22,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:49:22,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:49:23,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:23,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:23,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707541992] [2025-01-09 21:49:23,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707541992] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:23,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:23,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:49:23,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417375421] [2025-01-09 21:49:23,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:23,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:49:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:23,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:49:23,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:49:23,014 INFO L87 Difference]: Start difference. First operand 208 states and 273 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:49:23,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:23,572 INFO L93 Difference]: Finished difference Result 315 states and 414 transitions. [2025-01-09 21:49:23,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:49:23,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2025-01-09 21:49:23,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:23,577 INFO L225 Difference]: With dead ends: 315 [2025-01-09 21:49:23,577 INFO L226 Difference]: Without dead ends: 315 [2025-01-09 21:49:23,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:49:23,578 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 100 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:23,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 559 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 21:49:23,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2025-01-09 21:49:23,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 312. [2025-01-09 21:49:23,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 298 states have (on average 1.3187919463087248) internal successors, (393), 305 states have internal predecessors, (393), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 21:49:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 411 transitions. [2025-01-09 21:49:23,597 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 411 transitions. Word has length 66 [2025-01-09 21:49:23,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:23,597 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 411 transitions. [2025-01-09 21:49:23,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:49:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 411 transitions. [2025-01-09 21:49:23,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-01-09 21:49:23,599 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:23,600 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] [2025-01-09 21:49:23,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:23,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:23,801 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:23,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1839990952, now seen corresponding path program 1 times [2025-01-09 21:49:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:23,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1946893887] [2025-01-09 21:49:23,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:23,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:23,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:23,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:23,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 21:49:24,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-01-09 21:49:24,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-01-09 21:49:24,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:24,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:24,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:49:24,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 21:49:24,145 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:24,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:24,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946893887] [2025-01-09 21:49:24,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946893887] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:24,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:24,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:49:24,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250075225] [2025-01-09 21:49:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:24,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:49:24,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:24,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:49:24,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:49:24,147 INFO L87 Difference]: Start difference. First operand 312 states and 411 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2025-01-09 21:49:24,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:24,244 INFO L93 Difference]: Finished difference Result 352 states and 451 transitions. [2025-01-09 21:49:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:49:24,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 81 [2025-01-09 21:49:24,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:24,245 INFO L225 Difference]: With dead ends: 352 [2025-01-09 21:49:24,246 INFO L226 Difference]: Without dead ends: 352 [2025-01-09 21:49:24,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:49:24,246 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 9 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:24,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 487 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:49:24,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2025-01-09 21:49:24,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2025-01-09 21:49:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 338 states have (on average 1.2810650887573964) internal successors, (433), 345 states have internal predecessors, (433), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 21:49:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 451 transitions. [2025-01-09 21:49:24,252 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 451 transitions. Word has length 81 [2025-01-09 21:49:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:24,252 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 451 transitions. [2025-01-09 21:49:24,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2025-01-09 21:49:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 451 transitions. [2025-01-09 21:49:24,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-01-09 21:49:24,253 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:24,253 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] [2025-01-09 21:49:24,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:24,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:24,458 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:24,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash 625017180, now seen corresponding path program 1 times [2025-01-09 21:49:24,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:24,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365192231] [2025-01-09 21:49:24,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:24,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:24,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:24,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:24,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 21:49:24,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-01-09 21:49:24,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-01-09 21:49:24,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:24,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:24,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 21:49:24,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:24,925 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 21:49:24,925 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:24,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:24,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365192231] [2025-01-09 21:49:24,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365192231] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:24,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:24,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:49:24,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061891097] [2025-01-09 21:49:24,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:24,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:49:24,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:24,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:49:24,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:49:24,927 INFO L87 Difference]: Start difference. First operand 352 states and 451 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2025-01-09 21:49:29,262 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 [] [2025-01-09 21:49:33,270 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 [] [2025-01-09 21:49:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:35,305 INFO L93 Difference]: Finished difference Result 450 states and 586 transitions. [2025-01-09 21:49:35,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:49:35,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 81 [2025-01-09 21:49:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:35,309 INFO L225 Difference]: With dead ends: 450 [2025-01-09 21:49:35,309 INFO L226 Difference]: Without dead ends: 450 [2025-01-09 21:49:35,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:49:35,310 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 494 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:35,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 510 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2025-01-09 21:49:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2025-01-09 21:49:35,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 436. [2025-01-09 21:49:35,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 422 states have (on average 1.2890995260663507) internal successors, (544), 429 states have internal predecessors, (544), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 21:49:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 562 transitions. [2025-01-09 21:49:35,323 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 562 transitions. Word has length 81 [2025-01-09 21:49:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:35,324 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 562 transitions. [2025-01-09 21:49:35,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2025-01-09 21:49:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 562 transitions. [2025-01-09 21:49:35,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-01-09 21:49:35,326 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:35,326 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, 1, 1, 1] [2025-01-09 21:49:35,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:35,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:35,527 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:35,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:35,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1960784997, now seen corresponding path program 1 times [2025-01-09 21:49:35,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:35,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376392862] [2025-01-09 21:49:35,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:35,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:35,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:35,533 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:35,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 21:49:35,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 21:49:35,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 21:49:35,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:35,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:35,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:49:35,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:35,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 21:49:35,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:35,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:35,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376392862] [2025-01-09 21:49:35,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376392862] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:35,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:35,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:49:35,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021681221] [2025-01-09 21:49:35,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:35,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:49:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:35,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:49:35,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:49:35,893 INFO L87 Difference]: Start difference. First operand 436 states and 562 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:49:36,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:36,012 INFO L93 Difference]: Finished difference Result 402 states and 506 transitions. [2025-01-09 21:49:36,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:49:36,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2025-01-09 21:49:36,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:36,014 INFO L225 Difference]: With dead ends: 402 [2025-01-09 21:49:36,014 INFO L226 Difference]: Without dead ends: 402 [2025-01-09 21:49:36,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:49:36,014 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 32 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 703 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 [2025-01-09 21:49:36,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 703 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:49:36,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2025-01-09 21:49:36,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2025-01-09 21:49:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 388 states have (on average 1.2577319587628866) internal successors, (488), 395 states have internal predecessors, (488), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 21:49:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 506 transitions. [2025-01-09 21:49:36,025 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 506 transitions. Word has length 87 [2025-01-09 21:49:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:36,025 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 506 transitions. [2025-01-09 21:49:36,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:49:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 506 transitions. [2025-01-09 21:49:36,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-01-09 21:49:36,026 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:36,026 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, 1, 1, 1] [2025-01-09 21:49:36,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:36,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:36,227 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:36,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:36,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1371357929, now seen corresponding path program 1 times [2025-01-09 21:49:36,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:36,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087717026] [2025-01-09 21:49:36,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:36,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:36,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:36,231 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:36,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 21:49:36,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 21:49:36,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 21:49:36,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:36,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:36,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:49:36,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 21:49:36,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:36,587 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:36,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087717026] [2025-01-09 21:49:36,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087717026] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:36,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:36,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:49:36,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189832248] [2025-01-09 21:49:36,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:36,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:49:36,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:36,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:49:36,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:49:36,588 INFO L87 Difference]: Start difference. First operand 402 states and 506 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:49:36,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:36,619 INFO L93 Difference]: Finished difference Result 405 states and 510 transitions. [2025-01-09 21:49:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:49:36,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2025-01-09 21:49:36,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:36,621 INFO L225 Difference]: With dead ends: 405 [2025-01-09 21:49:36,621 INFO L226 Difference]: Without dead ends: 405 [2025-01-09 21:49:36,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:49:36,621 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 767 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 [2025-01-09 21:49:36,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 767 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 21:49:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-01-09 21:49:36,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2025-01-09 21:49:36,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 390 states have (on average 1.258974358974359) internal successors, (491), 398 states have internal predecessors, (491), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-09 21:49:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 510 transitions. [2025-01-09 21:49:36,629 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 510 transitions. Word has length 87 [2025-01-09 21:49:36,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:36,629 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 510 transitions. [2025-01-09 21:49:36,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:49:36,629 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 510 transitions. [2025-01-09 21:49:36,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-09 21:49:36,630 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:36,630 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, 1, 1, 1] [2025-01-09 21:49:36,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:36,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:36,831 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:36,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:36,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1339500185, now seen corresponding path program 1 times [2025-01-09 21:49:36,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:36,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329526517] [2025-01-09 21:49:36,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:36,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:36,838 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:36,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 21:49:37,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 21:49:37,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 21:49:37,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:37,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:37,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 21:49:37,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:37,161 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:37,162 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:37,162 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:37,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-01-09 21:49:37,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:49:37,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-01-09 21:49:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 21:49:37,216 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:37,216 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:37,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329526517] [2025-01-09 21:49:37,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329526517] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:37,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:37,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:49:37,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095011382] [2025-01-09 21:49:37,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:37,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:49:37,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:37,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:49:37,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:49:37,218 INFO L87 Difference]: Start difference. First operand 405 states and 510 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:49:37,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:37,660 INFO L93 Difference]: Finished difference Result 549 states and 697 transitions. [2025-01-09 21:49:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:49:37,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2025-01-09 21:49:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:37,662 INFO L225 Difference]: With dead ends: 549 [2025-01-09 21:49:37,663 INFO L226 Difference]: Without dead ends: 549 [2025-01-09 21:49:37,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:49:37,665 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 205 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:37,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 759 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 21:49:37,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-01-09 21:49:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 407. [2025-01-09 21:49:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 392 states have (on average 1.2576530612244898) internal successors, (493), 400 states have internal predecessors, (493), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-09 21:49:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 512 transitions. [2025-01-09 21:49:37,677 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 512 transitions. Word has length 89 [2025-01-09 21:49:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:37,678 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 512 transitions. [2025-01-09 21:49:37,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:49:37,678 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 512 transitions. [2025-01-09 21:49:37,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 21:49:37,679 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:37,679 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:49:37,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 21:49:37,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:37,880 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:37,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:37,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1524202281, now seen corresponding path program 1 times [2025-01-09 21:49:37,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:37,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061875807] [2025-01-09 21:49:37,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:37,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:37,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:37,884 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:37,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 21:49:38,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 21:49:38,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 21:49:38,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:38,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:38,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:49:38,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:38,249 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 21:49:38,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:38,250 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:38,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061875807] [2025-01-09 21:49:38,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061875807] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:38,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:38,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:49:38,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262417024] [2025-01-09 21:49:38,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:38,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:49:38,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:38,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:49:38,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:49:38,251 INFO L87 Difference]: Start difference. First operand 407 states and 512 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2025-01-09 21:49:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:38,348 INFO L93 Difference]: Finished difference Result 467 states and 572 transitions. [2025-01-09 21:49:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:49:38,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 128 [2025-01-09 21:49:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:38,350 INFO L225 Difference]: With dead ends: 467 [2025-01-09 21:49:38,350 INFO L226 Difference]: Without dead ends: 467 [2025-01-09 21:49:38,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:49:38,351 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 8 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:38,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 465 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:49:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2025-01-09 21:49:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2025-01-09 21:49:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 452 states have (on average 1.2234513274336283) internal successors, (553), 460 states have internal predecessors, (553), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-09 21:49:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 572 transitions. [2025-01-09 21:49:38,359 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 572 transitions. Word has length 128 [2025-01-09 21:49:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:38,360 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 572 transitions. [2025-01-09 21:49:38,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2025-01-09 21:49:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 572 transitions. [2025-01-09 21:49:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 21:49:38,362 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:38,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:49:38,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 21:49:38,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:38,563 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:38,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -360829477, now seen corresponding path program 1 times [2025-01-09 21:49:38,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:38,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214265003] [2025-01-09 21:49:38,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:38,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:38,567 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:38,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 21:49:38,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 21:49:38,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 21:49:38,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:38,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:38,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:49:38,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:38,938 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 21:49:38,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:49:38,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214265003] [2025-01-09 21:49:38,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214265003] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:49:38,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:49:38,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:49:38,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195477627] [2025-01-09 21:49:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:49:38,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:49:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:38,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:49:38,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:49:38,940 INFO L87 Difference]: Start difference. First operand 467 states and 572 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2025-01-09 21:49:39,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:39,011 INFO L93 Difference]: Finished difference Result 416 states and 488 transitions. [2025-01-09 21:49:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:49:39,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 128 [2025-01-09 21:49:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:39,012 INFO L225 Difference]: With dead ends: 416 [2025-01-09 21:49:39,013 INFO L226 Difference]: Without dead ends: 416 [2025-01-09 21:49:39,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:49:39,013 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 32 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 670 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 [2025-01-09 21:49:39,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 670 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:49:39,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2025-01-09 21:49:39,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2025-01-09 21:49:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 401 states have (on average 1.1695760598503742) internal successors, (469), 409 states have internal predecessors, (469), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-09 21:49:39,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 488 transitions. [2025-01-09 21:49:39,019 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 488 transitions. Word has length 128 [2025-01-09 21:49:39,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:39,020 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 488 transitions. [2025-01-09 21:49:39,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2025-01-09 21:49:39,020 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 488 transitions. [2025-01-09 21:49:39,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 21:49:39,020 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:39,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:49:39,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:39,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:39,222 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:39,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1663106701, now seen corresponding path program 1 times [2025-01-09 21:49:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:39,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204696046] [2025-01-09 21:49:39,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:49:39,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:39,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:39,225 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:39,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 21:49:39,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 21:49:39,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 21:49:39,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:49:39,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:39,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 21:49:39,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 21:49:39,640 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:49:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 21:49:39,731 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204696046] [2025-01-09 21:49:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204696046] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:49:39,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:49:39,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-09 21:49:39,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563093537] [2025-01-09 21:49:39,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:49:39,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 21:49:39,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:39,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 21:49:39,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 21:49:39,732 INFO L87 Difference]: Start difference. First operand 416 states and 488 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 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) [2025-01-09 21:49:39,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:39,834 INFO L93 Difference]: Finished difference Result 427 states and 505 transitions. [2025-01-09 21:49:39,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:49:39,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 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 128 [2025-01-09 21:49:39,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:39,836 INFO L225 Difference]: With dead ends: 427 [2025-01-09 21:49:39,836 INFO L226 Difference]: Without dead ends: 427 [2025-01-09 21:49:39,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-09 21:49:39,836 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 5 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:39,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 974 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:49:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2025-01-09 21:49:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 425. [2025-01-09 21:49:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 409 states have (on average 1.1809290953545233) internal successors, (483), 417 states have internal predecessors, (483), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2025-01-09 21:49:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 503 transitions. [2025-01-09 21:49:39,843 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 503 transitions. Word has length 128 [2025-01-09 21:49:39,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:39,843 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 503 transitions. [2025-01-09 21:49:39,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 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) [2025-01-09 21:49:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 503 transitions. [2025-01-09 21:49:39,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 21:49:39,844 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:39,844 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] [2025-01-09 21:49:39,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-09 21:49:40,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:40,045 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:40,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:40,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1974874543, now seen corresponding path program 2 times [2025-01-09 21:49:40,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:40,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606696428] [2025-01-09 21:49:40,046 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:49:40,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:40,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:40,048 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:40,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 21:49:40,299 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-01-09 21:49:40,486 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 21:49:40,486 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 21:49:40,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:40,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 21:49:40,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 21:49:40,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:49:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 21:49:40,642 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:40,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606696428] [2025-01-09 21:49:40,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606696428] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:49:40,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:49:40,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-09 21:49:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750288201] [2025-01-09 21:49:40,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:49:40,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:49:40,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:40,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:49:40,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:49:40,644 INFO L87 Difference]: Start difference. First operand 425 states and 503 transitions. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 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) [2025-01-09 21:49:40,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:49:40,825 INFO L93 Difference]: Finished difference Result 433 states and 513 transitions. [2025-01-09 21:49:40,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 21:49:40,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 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 132 [2025-01-09 21:49:40,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:49:40,827 INFO L225 Difference]: With dead ends: 433 [2025-01-09 21:49:40,828 INFO L226 Difference]: Without dead ends: 431 [2025-01-09 21:49:40,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-01-09 21:49:40,828 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 5 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:49:40,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1465 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:49:40,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2025-01-09 21:49:40,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2025-01-09 21:49:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 413 states have (on average 1.1840193704600483) internal successors, (489), 421 states have internal predecessors, (489), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-09 21:49:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 508 transitions. [2025-01-09 21:49:40,836 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 508 transitions. Word has length 132 [2025-01-09 21:49:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:49:40,837 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 508 transitions. [2025-01-09 21:49:40,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 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) [2025-01-09 21:49:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 508 transitions. [2025-01-09 21:49:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 21:49:40,839 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:49:40,839 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] [2025-01-09 21:49:40,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-09 21:49:41,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:41,044 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:49:41,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:49:41,044 INFO L85 PathProgramCache]: Analyzing trace with hash -623372561, now seen corresponding path program 3 times [2025-01-09 21:49:41,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:49:41,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240611953] [2025-01-09 21:49:41,045 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:49:41,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:49:41,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:49:41,048 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:49:41,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-09 21:49:41,334 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 136 statements into 6 equivalence classes. [2025-01-09 21:49:41,491 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 119 of 136 statements. [2025-01-09 21:49:41,491 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-09 21:49:41,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:49:41,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 21:49:41,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:49:41,511 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:41,512 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:41,512 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:49:41,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-01-09 21:49:42,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:49:42,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 189 treesize of output 87 [2025-01-09 21:49:42,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:49:42,935 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 118 treesize of output 74 [2025-01-09 21:49:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-01-09 21:49:42,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:49:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-01-09 21:49:43,402 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:49:43,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240611953] [2025-01-09 21:49:43,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240611953] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:49:43,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:49:43,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-01-09 21:49:43,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291737185] [2025-01-09 21:49:43,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:49:43,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 21:49:43,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:49:43,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 21:49:43,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-01-09 21:49:43,403 INFO L87 Difference]: Start difference. First operand 429 states and 508 transitions. Second operand has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 12 states have internal predecessors, (187), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 21:49:47,650 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 [0] [2025-01-09 21:49:51,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:49:56,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:00,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:04,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:08,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:12,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:16,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:20,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:24,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:28,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:33,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:37,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 21:50:37,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:50:37,212 INFO L93 Difference]: Finished difference Result 1096 states and 1304 transitions. [2025-01-09 21:50:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 21:50:37,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 12 states have internal predecessors, (187), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2025-01-09 21:50:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:50:37,216 INFO L225 Difference]: With dead ends: 1096 [2025-01-09 21:50:37,216 INFO L226 Difference]: Without dead ends: 1096 [2025-01-09 21:50:37,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-01-09 21:50:37,219 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 962 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 28 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2025-01-09 21:50:37,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1913 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 179 Invalid, 13 Unknown, 0 Unchecked, 53.5s Time] [2025-01-09 21:50:37,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2025-01-09 21:50:37,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 644. [2025-01-09 21:50:37,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 624 states have (on average 1.1778846153846154) internal successors, (735), 632 states have internal predecessors, (735), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2025-01-09 21:50:37,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 760 transitions. [2025-01-09 21:50:37,235 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 760 transitions. Word has length 136 [2025-01-09 21:50:37,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:50:37,235 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 760 transitions. [2025-01-09 21:50:37,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 12 states have internal predecessors, (187), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 21:50:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 760 transitions. [2025-01-09 21:50:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2025-01-09 21:50:37,238 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:50:37,239 INFO L218 NwaCegarLoop]: trace histogram [10, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2025-01-09 21:50:37,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-09 21:50:37,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:50:37,440 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:50:37,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:50:37,441 INFO L85 PathProgramCache]: Analyzing trace with hash 77525502, now seen corresponding path program 1 times [2025-01-09 21:50:37,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:50:37,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8584550] [2025-01-09 21:50:37,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:50:37,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:50:37,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:50:37,446 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:50:37,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-09 21:50:37,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 304 statements into 1 equivalence classes. [2025-01-09 21:50:38,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 304 of 304 statements. [2025-01-09 21:50:38,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:50:38,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:50:38,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 21:50:38,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:50:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 153 proven. 10 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2025-01-09 21:50:38,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:50:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 153 proven. 10 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2025-01-09 21:50:38,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:50:38,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8584550] [2025-01-09 21:50:38,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8584550] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:50:38,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:50:38,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-01-09 21:50:38,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647155316] [2025-01-09 21:50:38,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:50:38,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:50:38,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:50:38,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:50:38,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:50:38,621 INFO L87 Difference]: Start difference. First operand 644 states and 760 transitions. Second operand has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 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) [2025-01-09 21:50:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:50:39,143 INFO L93 Difference]: Finished difference Result 667 states and 795 transitions. [2025-01-09 21:50:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-09 21:50:39,144 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 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 304 [2025-01-09 21:50:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:50:39,145 INFO L225 Difference]: With dead ends: 667 [2025-01-09 21:50:39,145 INFO L226 Difference]: Without dead ends: 661 [2025-01-09 21:50:39,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-01-09 21:50:39,146 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 8 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 21:50:39,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2192 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 21:50:39,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2025-01-09 21:50:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 652. [2025-01-09 21:50:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 632 states have (on average 1.1835443037974684) internal successors, (748), 640 states have internal predecessors, (748), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2025-01-09 21:50:39,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 773 transitions. [2025-01-09 21:50:39,154 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 773 transitions. Word has length 304 [2025-01-09 21:50:39,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:50:39,154 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 773 transitions. [2025-01-09 21:50:39,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 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) [2025-01-09 21:50:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 773 transitions. [2025-01-09 21:50:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2025-01-09 21:50:39,157 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:50:39,157 INFO L218 NwaCegarLoop]: trace histogram [16, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2025-01-09 21:50:39,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-09 21:50:39,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:50:39,358 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:50:39,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:50:39,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1863931618, now seen corresponding path program 2 times [2025-01-09 21:50:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:50:39,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008341107] [2025-01-09 21:50:39,360 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:50:39,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:50:39,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:50:39,364 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:50:39,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-09 21:50:39,790 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 310 statements into 2 equivalence classes. [2025-01-09 21:50:40,270 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 310 of 310 statements. [2025-01-09 21:50:40,270 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 21:50:40,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:50:40,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-09 21:50:40,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:50:40,326 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:50:40,326 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:50:40,327 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:50:40,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-01-09 21:50:41,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:50:41,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 189 treesize of output 87 [2025-01-09 21:50:42,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:50:42,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 237 treesize of output 135 [2025-01-09 21:50:43,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:50:43,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 429 treesize of output 327 [2025-01-09 21:50:44,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:50:44,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 1197 treesize of output 1095 [2025-01-09 21:50:44,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:50:44,561 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 4150 treesize of output 4106 [2025-01-09 21:50:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-01-09 21:50:44,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:50:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-01-09 21:50:46,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:50:46,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008341107] [2025-01-09 21:50:46,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008341107] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:50:46,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:50:46,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-01-09 21:50:46,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930180243] [2025-01-09 21:50:46,668 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:50:46,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-09 21:50:46,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:50:46,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-09 21:50:46,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2025-01-09 21:50:46,670 INFO L87 Difference]: Start difference. First operand 652 states and 773 transitions. Second operand has 18 states, 18 states have (on average 29.055555555555557) internal successors, (523), 18 states have internal predecessors, (523), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 21:50:51,244 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 [0]