./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.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 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:52:32,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:52:32,507 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 05:52:32,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:52:32,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:52:32,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:52:32,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:52:32,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:52:32,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 05:52:32,532 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 05:52:32,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:52:32,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:52:32,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:52:32,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:52:32,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:52:32,534 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:52:32,535 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:52:32,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:52:32,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:52:32,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:52:32,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:52:32,536 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 -> 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 [2025-02-08 05:52:32,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:52:32,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:52:32,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:52:32,776 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:52:32,776 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:52:32,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2025-02-08 05:52:34,028 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/acd1be8ab/be042668ea1a4a7aa25de56666248add/FLAG0f8a3748e [2025-02-08 05:52:34,349 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:52:34,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2025-02-08 05:52:34,368 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/acd1be8ab/be042668ea1a4a7aa25de56666248add/FLAG0f8a3748e [2025-02-08 05:52:34,383 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/acd1be8ab/be042668ea1a4a7aa25de56666248add [2025-02-08 05:52:34,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:52:34,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:52:34,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:52:34,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:52:34,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:52:34,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:52:34" (1/1) ... [2025-02-08 05:52:34,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24708d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:34, skipping insertion in model container [2025-02-08 05:52:34,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:52:34" (1/1) ... [2025-02-08 05:52:34,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:52:34,669 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,705 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,710 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,713 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,722 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,763 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,763 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,766 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,766 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,769 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,771 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,774 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,774 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,777 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:34,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:52:34,801 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 05:52:34,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7cf87254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:34, skipping insertion in model container [2025-02-08 05:52:34,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:52:34,803 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 05:52:34,805 INFO L158 Benchmark]: Toolchain (without parser) took 417.39ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 91.0MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:52:34,806 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:52:34,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.41ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 91.0MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:52:34,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.41ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 91.0MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.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 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:52:36,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:52:36,884 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 05:52:36,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:52:36,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:52:36,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:52:36,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:52:36,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:52:36,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 05:52:36,917 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 05:52:36,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:52:36,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:52:36,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:52:36,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:52:36,918 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:52:36,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:52:36,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:52:36,919 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:52:36,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:52:36,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:52:36,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:52:36,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:52:36,919 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:52:36,920 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:52:36,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:52:36,921 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:52:36,921 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:52:36,921 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:52:36,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:52:36,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 05:52:36,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:52:36,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:52:36,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:52:36,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:52:36,922 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:52:36,922 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:52:36,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:52:36,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:52:36,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:52:36,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:52:36,923 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 -> 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 [2025-02-08 05:52:37,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:52:37,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:52:37,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:52:37,159 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:52:37,159 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:52:37,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2025-02-08 05:52:38,350 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3d27f5c3/ec7d333b9f1442789413e67e92d5202e/FLAG9d858189f [2025-02-08 05:52:38,637 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:52:38,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2025-02-08 05:52:38,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3d27f5c3/ec7d333b9f1442789413e67e92d5202e/FLAG9d858189f [2025-02-08 05:52:38,907 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3d27f5c3/ec7d333b9f1442789413e67e92d5202e [2025-02-08 05:52:38,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:52:38,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:52:38,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:52:38,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:52:38,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:52:38,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:52:38" (1/1) ... [2025-02-08 05:52:38,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea2e571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:38, skipping insertion in model container [2025-02-08 05:52:38,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:52:38" (1/1) ... [2025-02-08 05:52:38,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:52:39,257 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,313 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,323 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,332 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,343 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,376 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,376 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,380 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,380 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,382 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,385 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,387 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,388 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,395 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:52:39,419 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 05:52:39,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:52:39,454 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,465 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,466 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,468 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,471 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,485 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,486 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,487 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,487 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,489 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,489 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,490 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,490 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,492 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:52:39,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:52:39,500 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:52:39,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:52:39,611 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:52:39,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39 WrapperNode [2025-02-08 05:52:39,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:52:39,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:52:39,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:52:39,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:52:39,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,695 INFO L138 Inliner]: procedures = 179, calls = 272, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 973 [2025-02-08 05:52:39,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:52:39,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:52:39,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:52:39,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:52:39,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,775 INFO L175 MemorySlicer]: Split 253 memory accesses to 3 slices as follows [2, 217, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-02-08 05:52:39,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,828 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:52:39,856 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:52:39,856 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:52:39,856 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:52:39,857 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (1/1) ... [2025-02-08 05:52:39,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:52:39,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:52:39,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:52:39,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:52:39,898 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 05:52:39,898 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 05:52:39,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 05:52:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 05:52:39,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 05:52:39,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 05:52:39,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 05:52:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 05:52:39,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 05:52:39,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 05:52:39,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:52:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:52:40,049 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:52:40,051 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:52:47,145 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 05:52:47,189 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2025-02-08 05:52:47,189 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:52:47,200 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:52:47,200 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:52:47,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:52:47 BoogieIcfgContainer [2025-02-08 05:52:47,200 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:52:47,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:52:47,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:52:47,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:52:47,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:52:38" (1/3) ... [2025-02-08 05:52:47,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a7085b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:52:47, skipping insertion in model container [2025-02-08 05:52:47,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:52:39" (2/3) ... [2025-02-08 05:52:47,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a7085b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:52:47, skipping insertion in model container [2025-02-08 05:52:47,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:52:47" (3/3) ... [2025-02-08 05:52:47,209 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-1.i [2025-02-08 05:52:47,218 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:52:47,219 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test7-1.i that has 5 procedures, 200 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-08 05:52:47,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:52:47,285 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;@16ad21b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:52:47,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 05:52:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 182 states have (on average 1.6593406593406594) internal successors, (302), 185 states have internal predecessors, (302), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-08 05:52:47,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 05:52:47,296 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:52:47,296 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:52:47,296 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:52:47,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:52:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2064836407, now seen corresponding path program 1 times [2025-02-08 05:52:47,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:52:47,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603065461] [2025-02-08 05:52:47,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:52:47,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:47,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:52:47,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:52:47,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:52:47,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 05:52:47,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 05:52:47,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:52:47,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:52:47,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 05:52:47,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:52:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:52:47,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:52:47,482 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:52:47,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603065461] [2025-02-08 05:52:47,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603065461] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:52:47,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:52:47,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:52:47,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605400999] [2025-02-08 05:52:47,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:52:47,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:52:47,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:52:47,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:52:47,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:52:47,505 INFO L87 Difference]: Start difference. First operand has 192 states, 182 states have (on average 1.6593406593406594) internal successors, (302), 185 states have internal predecessors, (302), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:52:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:52:47,525 INFO L93 Difference]: Finished difference Result 189 states and 244 transitions. [2025-02-08 05:52:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:52:47,527 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 05:52:47,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:52:47,532 INFO L225 Difference]: With dead ends: 189 [2025-02-08 05:52:47,532 INFO L226 Difference]: Without dead ends: 187 [2025-02-08 05:52:47,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:52:47,537 INFO L435 NwaCegarLoop]: 244 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, 244 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 [2025-02-08 05:52:47,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 05:52:47,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-02-08 05:52:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2025-02-08 05:52:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 179 states have (on average 1.3072625698324023) internal successors, (234), 181 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:52:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 242 transitions. [2025-02-08 05:52:47,576 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 242 transitions. Word has length 7 [2025-02-08 05:52:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:52:47,576 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 242 transitions. [2025-02-08 05:52:47,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:52:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 242 transitions. [2025-02-08 05:52:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-08 05:52:47,577 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:52:47,577 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:52:47,588 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 [2025-02-08 05:52:47,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:47,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:52:47,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:52:47,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1705849559, now seen corresponding path program 1 times [2025-02-08 05:52:47,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:52:47,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771770539] [2025-02-08 05:52:47,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:52:47,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:47,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:52:47,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:52:47,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 05:52:47,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 05:52:47,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 05:52:47,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:52:47,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:52:47,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:52:47,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:52:47,966 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:52:47,967 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:52:47,968 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:52:47,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 05:52:48,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:52:48,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 05:52:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:52:48,093 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:52:48,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:52:48,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771770539] [2025-02-08 05:52:48,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771770539] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:52:48,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:52:48,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:52:48,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631765974] [2025-02-08 05:52:48,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:52:48,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:52:48,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:52:48,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:52:48,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:52:48,094 INFO L87 Difference]: Start difference. First operand 187 states and 242 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:52:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:52:48,652 INFO L93 Difference]: Finished difference Result 363 states and 474 transitions. [2025-02-08 05:52:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:52:48,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-08 05:52:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:52:48,655 INFO L225 Difference]: With dead ends: 363 [2025-02-08 05:52:48,655 INFO L226 Difference]: Without dead ends: 363 [2025-02-08 05:52:48,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:52:48,656 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 221 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 05:52:48,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 710 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 05:52:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2025-02-08 05:52:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 189. [2025-02-08 05:52:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 181 states have (on average 1.3038674033149171) internal successors, (236), 183 states have internal predecessors, (236), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:52:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 244 transitions. [2025-02-08 05:52:48,668 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 244 transitions. Word has length 9 [2025-02-08 05:52:48,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:52:48,668 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 244 transitions. [2025-02-08 05:52:48,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:52:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 244 transitions. [2025-02-08 05:52:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-08 05:52:48,669 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:52:48,669 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] [2025-02-08 05:52:48,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 05:52:48,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:48,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:52:48,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:52:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 203278456, now seen corresponding path program 1 times [2025-02-08 05:52:48,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:52:48,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948467502] [2025-02-08 05:52:48,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:52:48,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:48,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:52:48,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:52:48,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 05:52:49,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-08 05:52:49,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-08 05:52:49,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:52:49,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:52:49,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:52:49,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:52:49,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:52:49,461 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:52:49,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:52:49,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948467502] [2025-02-08 05:52:49,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948467502] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:52:49,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:52:49,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:52:49,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628675186] [2025-02-08 05:52:49,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:52:49,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:52:49,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:52:49,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:52:49,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:52:49,463 INFO L87 Difference]: Start difference. First operand 189 states and 244 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:52:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:52:49,969 INFO L93 Difference]: Finished difference Result 295 states and 384 transitions. [2025-02-08 05:52:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:52:49,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2025-02-08 05:52:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:52:49,971 INFO L225 Difference]: With dead ends: 295 [2025-02-08 05:52:49,971 INFO L226 Difference]: Without dead ends: 295 [2025-02-08 05:52:49,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:52:49,971 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 100 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 501 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 [2025-02-08 05:52:49,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 501 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 05:52:49,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2025-02-08 05:52:49,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 292. [2025-02-08 05:52:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 284 states have (on average 1.3133802816901408) internal successors, (373), 286 states have internal predecessors, (373), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:52:49,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 381 transitions. [2025-02-08 05:52:49,980 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 381 transitions. Word has length 64 [2025-02-08 05:52:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:52:49,980 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 381 transitions. [2025-02-08 05:52:49,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:52:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 381 transitions. [2025-02-08 05:52:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-08 05:52:49,982 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:52:49,982 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] [2025-02-08 05:52:49,992 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 [2025-02-08 05:52:50,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:50,186 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:52:50,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:52:50,187 INFO L85 PathProgramCache]: Analyzing trace with hash 918132601, now seen corresponding path program 1 times [2025-02-08 05:52:50,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:52:50,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715126913] [2025-02-08 05:52:50,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:52:50,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:50,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:52:50,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:52:50,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 05:52:50,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 05:52:50,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 05:52:50,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:52:50,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:52:50,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:52:50,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:52:50,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:52:50,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:52:50,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:52:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715126913] [2025-02-08 05:52:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715126913] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:52:50,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:52:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:52:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796793762] [2025-02-08 05:52:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:52:50,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:52:50,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:52:50,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:52:50,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:52:50,543 INFO L87 Difference]: Start difference. First operand 292 states and 381 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:52:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:52:50,688 INFO L93 Difference]: Finished difference Result 332 states and 421 transitions. [2025-02-08 05:52:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:52:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 79 [2025-02-08 05:52:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:52:50,690 INFO L225 Difference]: With dead ends: 332 [2025-02-08 05:52:50,690 INFO L226 Difference]: Without dead ends: 332 [2025-02-08 05:52:50,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:52:50,691 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 8 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 429 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 [2025-02-08 05:52:50,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 429 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:52:50,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2025-02-08 05:52:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2025-02-08 05:52:50,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 324 states have (on average 1.2746913580246915) internal successors, (413), 326 states have internal predecessors, (413), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:52:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 421 transitions. [2025-02-08 05:52:50,701 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 421 transitions. Word has length 79 [2025-02-08 05:52:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:52:50,701 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 421 transitions. [2025-02-08 05:52:50,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:52:50,701 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 421 transitions. [2025-02-08 05:52:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-08 05:52:50,703 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:52:50,703 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] [2025-02-08 05:52:50,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 05:52:50,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:50,907 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:52:50,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:52:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash 480123098, now seen corresponding path program 1 times [2025-02-08 05:52:50,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:52:50,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234881729] [2025-02-08 05:52:50,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:52:50,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:52:50,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:52:50,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:52:50,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 05:52:51,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 05:52:51,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 05:52:51,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:52:51,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:52:51,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:52:51,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:52:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:52:51,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:52:51,350 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:52:51,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234881729] [2025-02-08 05:52:51,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234881729] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:52:51,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:52:51,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:52:51,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269531168] [2025-02-08 05:52:51,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:52:51,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:52:51,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:52:51,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:52:51,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:52:51,351 INFO L87 Difference]: Start difference. First operand 332 states and 421 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:52:55,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:52:59,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:53:02,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:53:02,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:02,880 INFO L93 Difference]: Finished difference Result 419 states and 535 transitions. [2025-02-08 05:53:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:53:02,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (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 79 [2025-02-08 05:53:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:02,884 INFO L225 Difference]: With dead ends: 419 [2025-02-08 05:53:02,884 INFO L226 Difference]: Without dead ends: 419 [2025-02-08 05:53:02,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:53:02,884 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 479 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2025-02-08 05:53:02,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 423 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2025-02-08 05:53:02,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2025-02-08 05:53:02,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 416. [2025-02-08 05:53:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 408 states have (on average 1.2843137254901962) internal successors, (524), 410 states have internal predecessors, (524), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:53:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 532 transitions. [2025-02-08 05:53:02,908 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 532 transitions. Word has length 79 [2025-02-08 05:53:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:02,908 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 532 transitions. [2025-02-08 05:53:02,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 532 transitions. [2025-02-08 05:53:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-08 05:53:02,910 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:02,911 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] [2025-02-08 05:53:02,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 05:53:03,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:03,112 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:03,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:03,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1837177156, now seen corresponding path program 1 times [2025-02-08 05:53:03,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:03,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [402201277] [2025-02-08 05:53:03,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:53:03,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:03,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:03,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:03,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 05:53:03,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-08 05:53:03,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-08 05:53:03,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:53:03,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:03,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:53:03,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:53:03,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:53:03,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:03,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402201277] [2025-02-08 05:53:03,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402201277] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:53:03,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:53:03,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:53:03,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35049917] [2025-02-08 05:53:03,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:53:03,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:53:03,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:03,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:53:03,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:53:03,452 INFO L87 Difference]: Start difference. First operand 416 states and 532 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:03,540 INFO L93 Difference]: Finished difference Result 382 states and 476 transitions. [2025-02-08 05:53:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:53:03,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2025-02-08 05:53:03,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:03,542 INFO L225 Difference]: With dead ends: 382 [2025-02-08 05:53:03,542 INFO L226 Difference]: Without dead ends: 382 [2025-02-08 05:53:03,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:53:03,543 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 32 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:53:03,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 616 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:53:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-02-08 05:53:03,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2025-02-08 05:53:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 374 states have (on average 1.2513368983957218) internal successors, (468), 376 states have internal predecessors, (468), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:53:03,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 476 transitions. [2025-02-08 05:53:03,549 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 476 transitions. Word has length 81 [2025-02-08 05:53:03,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:03,549 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 476 transitions. [2025-02-08 05:53:03,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:03,550 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 476 transitions. [2025-02-08 05:53:03,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-08 05:53:03,550 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:03,550 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] [2025-02-08 05:53:03,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 05:53:03,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:03,751 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:03,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:03,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1206710813, now seen corresponding path program 1 times [2025-02-08 05:53:03,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:03,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959734849] [2025-02-08 05:53:03,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:53:03,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:03,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:03,754 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:03,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 05:53:03,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-08 05:53:04,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-08 05:53:04,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:53:04,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:04,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:53:04,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 05:53:04,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:53:04,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:04,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959734849] [2025-02-08 05:53:04,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959734849] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:53:04,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:53:04,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:53:04,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329452136] [2025-02-08 05:53:04,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:53:04,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:53:04,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:04,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:53:04,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:53:04,128 INFO L87 Difference]: Start difference. First operand 382 states and 476 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:04,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:04,154 INFO L93 Difference]: Finished difference Result 385 states and 480 transitions. [2025-02-08 05:53:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:53:04,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2025-02-08 05:53:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:04,157 INFO L225 Difference]: With dead ends: 385 [2025-02-08 05:53:04,157 INFO L226 Difference]: Without dead ends: 385 [2025-02-08 05:53:04,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:53:04,157 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 05:53:04,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 680 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 05:53:04,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2025-02-08 05:53:04,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2025-02-08 05:53:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 376 states have (on average 1.252659574468085) internal successors, (471), 379 states have internal predecessors, (471), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:53:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 480 transitions. [2025-02-08 05:53:04,164 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 480 transitions. Word has length 81 [2025-02-08 05:53:04,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:04,164 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 480 transitions. [2025-02-08 05:53:04,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 480 transitions. [2025-02-08 05:53:04,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-08 05:53:04,165 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:04,165 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] [2025-02-08 05:53:04,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 05:53:04,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:04,369 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:04,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1022324345, now seen corresponding path program 1 times [2025-02-08 05:53:04,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:04,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25111614] [2025-02-08 05:53:04,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:53:04,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:04,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:04,372 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:04,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 05:53:04,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 05:53:04,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 05:53:04,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:53:04,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:04,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 05:53:04,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:04,725 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:04,726 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:04,726 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:04,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 05:53:04,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:53:04,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 05:53:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 05:53:04,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:53:04,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:04,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25111614] [2025-02-08 05:53:04,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25111614] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:53:04,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:53:04,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:53:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171561840] [2025-02-08 05:53:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:53:04,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:53:04,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:04,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:53:04,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:53:04,777 INFO L87 Difference]: Start difference. First operand 385 states and 480 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:05,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:05,165 INFO L93 Difference]: Finished difference Result 528 states and 666 transitions. [2025-02-08 05:53:05,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:53:05,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 83 [2025-02-08 05:53:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:05,167 INFO L225 Difference]: With dead ends: 528 [2025-02-08 05:53:05,167 INFO L226 Difference]: Without dead ends: 528 [2025-02-08 05:53:05,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:53:05,168 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 203 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 670 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 [2025-02-08 05:53:05,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 670 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 05:53:05,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2025-02-08 05:53:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 387. [2025-02-08 05:53:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 378 states have (on average 1.2513227513227514) internal successors, (473), 381 states have internal predecessors, (473), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:53:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 482 transitions. [2025-02-08 05:53:05,181 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 482 transitions. Word has length 83 [2025-02-08 05:53:05,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:05,184 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 482 transitions. [2025-02-08 05:53:05,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 482 transitions. [2025-02-08 05:53:05,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-08 05:53:05,185 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:05,185 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] [2025-02-08 05:53:05,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 05:53:05,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:05,388 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:05,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:05,388 INFO L85 PathProgramCache]: Analyzing trace with hash 596606705, now seen corresponding path program 1 times [2025-02-08 05:53:05,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:05,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623484904] [2025-02-08 05:53:05,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:53:05,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:05,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:05,391 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:05,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 05:53:05,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-08 05:53:05,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-08 05:53:05,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:53:05,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:05,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:53:05,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:05,776 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 05:53:05,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:53:05,777 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:05,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623484904] [2025-02-08 05:53:05,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623484904] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:53:05,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:53:05,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:53:05,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990542084] [2025-02-08 05:53:05,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:53:05,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:53:05,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:05,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:53:05,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:53:05,778 INFO L87 Difference]: Start difference. First operand 387 states and 482 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:05,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:05,900 INFO L93 Difference]: Finished difference Result 447 states and 542 transitions. [2025-02-08 05:53:05,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:53:05,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 126 [2025-02-08 05:53:05,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:05,901 INFO L225 Difference]: With dead ends: 447 [2025-02-08 05:53:05,901 INFO L226 Difference]: Without dead ends: 447 [2025-02-08 05:53:05,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:53:05,902 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 8 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 407 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 [2025-02-08 05:53:05,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 407 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:53:05,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2025-02-08 05:53:05,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2025-02-08 05:53:05,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 438 states have (on average 1.2168949771689497) internal successors, (533), 441 states have internal predecessors, (533), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:53:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 542 transitions. [2025-02-08 05:53:05,909 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 542 transitions. Word has length 126 [2025-02-08 05:53:05,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:05,909 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 542 transitions. [2025-02-08 05:53:05,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 542 transitions. [2025-02-08 05:53:05,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-08 05:53:05,910 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:05,910 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] [2025-02-08 05:53:05,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 05:53:06,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:06,115 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:06,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash 851343250, now seen corresponding path program 1 times [2025-02-08 05:53:06,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:06,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138125186] [2025-02-08 05:53:06,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:53:06,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:06,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:06,119 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:06,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 05:53:06,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-08 05:53:06,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-08 05:53:06,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:53:06,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:06,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:53:06,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 05:53:06,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:53:06,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:06,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138125186] [2025-02-08 05:53:06,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138125186] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:53:06,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:53:06,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:53:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812076885] [2025-02-08 05:53:06,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:53:06,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:53:06,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:06,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:53:06,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:53:06,523 INFO L87 Difference]: Start difference. First operand 447 states and 542 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:06,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:06,619 INFO L93 Difference]: Finished difference Result 396 states and 458 transitions. [2025-02-08 05:53:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:53:06,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 126 [2025-02-08 05:53:06,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:06,621 INFO L225 Difference]: With dead ends: 396 [2025-02-08 05:53:06,621 INFO L226 Difference]: Without dead ends: 396 [2025-02-08 05:53:06,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:53:06,622 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 32 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:53:06,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 583 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:53:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2025-02-08 05:53:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2025-02-08 05:53:06,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 387 states have (on average 1.1602067183462532) internal successors, (449), 390 states have internal predecessors, (449), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:53:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 458 transitions. [2025-02-08 05:53:06,628 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 458 transitions. Word has length 126 [2025-02-08 05:53:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:06,628 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 458 transitions. [2025-02-08 05:53:06,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:53:06,628 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 458 transitions. [2025-02-08 05:53:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-08 05:53:06,629 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:06,629 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] [2025-02-08 05:53:06,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 05:53:06,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:06,830 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:06,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash -284172309, now seen corresponding path program 1 times [2025-02-08 05:53:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:06,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [738902877] [2025-02-08 05:53:06,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:53:06,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:06,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:06,836 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:06,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 05:53:07,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-08 05:53:07,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-08 05:53:07,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:53:07,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:07,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:53:07,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:07,257 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 05:53:07,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:53:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 05:53:07,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:07,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738902877] [2025-02-08 05:53:07,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738902877] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:53:07,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:53:07,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 05:53:07,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72943268] [2025-02-08 05:53:07,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:53:07,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 05:53:07,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:07,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 05:53:07,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 05:53:07,355 INFO L87 Difference]: Start difference. First operand 396 states and 458 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:53:07,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:07,518 INFO L93 Difference]: Finished difference Result 407 states and 475 transitions. [2025-02-08 05:53:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 05:53:07,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 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 126 [2025-02-08 05:53:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:07,520 INFO L225 Difference]: With dead ends: 407 [2025-02-08 05:53:07,520 INFO L226 Difference]: Without dead ends: 407 [2025-02-08 05:53:07,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 05:53:07,521 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 5 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:53:07,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 858 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:53:07,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2025-02-08 05:53:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 405. [2025-02-08 05:53:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 395 states have (on average 1.1721518987341772) internal successors, (463), 398 states have internal predecessors, (463), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-08 05:53:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 473 transitions. [2025-02-08 05:53:07,528 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 473 transitions. Word has length 126 [2025-02-08 05:53:07,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:07,528 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 473 transitions. [2025-02-08 05:53:07,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:53:07,528 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 473 transitions. [2025-02-08 05:53:07,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-02-08 05:53:07,529 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:07,529 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] [2025-02-08 05:53:07,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 05:53:07,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:07,730 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:07,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:07,730 INFO L85 PathProgramCache]: Analyzing trace with hash -177045017, now seen corresponding path program 2 times [2025-02-08 05:53:07,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:07,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1784831625] [2025-02-08 05:53:07,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:53:07,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:07,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:07,733 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:07,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 05:53:07,990 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 130 statements into 2 equivalence classes. [2025-02-08 05:53:08,178 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-02-08 05:53:08,178 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 05:53:08,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:08,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 05:53:08,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 05:53:08,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:53:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 05:53:08,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:08,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784831625] [2025-02-08 05:53:08,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784831625] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:53:08,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:53:08,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 05:53:08,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148777450] [2025-02-08 05:53:08,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:53:08,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:53:08,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:08,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:53:08,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:53:08,373 INFO L87 Difference]: Start difference. First operand 405 states and 473 transitions. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:53:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:53:08,582 INFO L93 Difference]: Finished difference Result 413 states and 483 transitions. [2025-02-08 05:53:08,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 05:53:08,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 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 130 [2025-02-08 05:53:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:53:08,584 INFO L225 Difference]: With dead ends: 413 [2025-02-08 05:53:08,584 INFO L226 Difference]: Without dead ends: 411 [2025-02-08 05:53:08,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:53:08,585 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 5 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:53:08,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 867 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:53:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2025-02-08 05:53:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 409. [2025-02-08 05:53:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 399 states have (on average 1.1754385964912282) internal successors, (469), 402 states have internal predecessors, (469), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:53:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 478 transitions. [2025-02-08 05:53:08,591 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 478 transitions. Word has length 130 [2025-02-08 05:53:08,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:53:08,591 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 478 transitions. [2025-02-08 05:53:08,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:53:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 478 transitions. [2025-02-08 05:53:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-02-08 05:53:08,592 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:53:08,592 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] [2025-02-08 05:53:08,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 05:53:08,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:08,797 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:53:08,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:53:08,797 INFO L85 PathProgramCache]: Analyzing trace with hash -235022681, now seen corresponding path program 3 times [2025-02-08 05:53:08,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:53:08,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383673800] [2025-02-08 05:53:08,798 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:53:08,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:53:08,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:53:08,801 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:53:08,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 05:53:09,056 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 134 statements into 6 equivalence classes. [2025-02-08 05:53:09,227 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 117 of 134 statements. [2025-02-08 05:53:09,227 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 05:53:09,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:09,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 05:53:09,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:09,257 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:09,258 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:09,258 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:09,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 05:53:10,631 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:53:10,631 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 162 treesize of output 71 [2025-02-08 05:53:10,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:53:10,701 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 98 treesize of output 58 [2025-02-08 05:53:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-08 05:53:10,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:53:11,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:53:11,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383673800] [2025-02-08 05:53:11,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383673800] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:53:11,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [357607341] [2025-02-08 05:53:11,061 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:53:11,061 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-08 05:53:11,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-08 05:53:11,077 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-08 05:53:11,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2025-02-08 05:53:11,475 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 134 statements into 6 equivalence classes. [2025-02-08 05:53:11,856 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 117 of 134 statements. [2025-02-08 05:53:11,856 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 05:53:11,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:53:11,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 05:53:11,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:53:11,892 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:11,892 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:11,893 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:53:11,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2025-02-08 05:53:12,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:53:12,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 65 [2025-02-08 05:53:13,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:53:13,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 58 [2025-02-08 05:53:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-08 05:53:13,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:53:13,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [357607341] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:53:13,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:53:13,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2025-02-08 05:53:13,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359660219] [2025-02-08 05:53:13,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:53:13,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:53:13,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:53:13,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:53:13,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2025-02-08 05:53:13,191 INFO L87 Difference]: Start difference. First operand 409 states and 478 transitions. Second operand has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 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) [2025-02-08 05:53:17,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:21,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:25,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:29,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:33,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:37,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:41,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:45,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:49,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:54,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:53:58,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:54:02,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:54:06,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:54:10,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 05:54:14,258 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]