./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.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 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:46:01,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:46:01,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:46:01,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:46:01,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:46:02,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:46:02,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:46:02,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:46:02,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:46:02,002 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:46:02,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:46:02,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:46:02,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:46:02,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:46:02,002 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:46:02,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:46:02,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:46:02,003 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:46:02,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:46:02,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:46:02,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:46:02,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:46:02,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:46:02,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:46:02,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:46:02,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:46:02,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:46:02,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:46:02,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:46:02,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:46:02,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:46:02,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:46:02,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:46:02,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:46:02,006 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 -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2025-02-06 09:46:02,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:46:02,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:46:02,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:46:02,246 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:46:02,246 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:46:02,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i [2025-02-06 09:46:03,374 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae4311956/07d95c08b18944a2a075ec56ffbea489/FLAG661828709 [2025-02-06 09:46:03,719 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:46:03,720 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i [2025-02-06 09:46:03,729 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae4311956/07d95c08b18944a2a075ec56ffbea489/FLAG661828709 [2025-02-06 09:46:03,742 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae4311956/07d95c08b18944a2a075ec56ffbea489 [2025-02-06 09:46:03,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:46:03,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:46:03,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:46:03,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:46:03,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:46:03,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:46:03" (1/1) ... [2025-02-06 09:46:03,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cd21fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:03, skipping insertion in model container [2025-02-06 09:46:03,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:46:03" (1/1) ... [2025-02-06 09:46:03,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:46:04,066 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,096 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,101 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,129 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,131 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,133 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,139 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,153 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,154 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,156 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,157 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,158 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,158 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,161 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,162 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,162 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,163 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,165 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:04,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:46:04,181 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) [2025-02-06 09:46:04,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2cbcdc86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:04, skipping insertion in model container [2025-02-06 09:46:04,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:46:04,186 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:46:04,187 INFO L158 Benchmark]: Toolchain (without parser) took 440.39ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 88.5MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:46:04,187 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 226.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:46:04,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.33ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 88.5MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:46:04,188 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 226.5MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.33ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 88.5MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 757]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.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 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:46:05,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:46:06,074 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:46:06,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:46:06,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:46:06,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:46:06,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:46:06,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:46:06,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:46:06,105 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:46:06,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:46:06,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:46:06,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:46:06,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:46:06,105 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:46:06,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:46:06,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:46:06,107 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:46:06,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:46:06,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:46:06,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:46:06,108 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 -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2025-02-06 09:46:06,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:46:06,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:46:06,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:46:06,339 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:46:06,339 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:46:06,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i [2025-02-06 09:46:07,553 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb78df566/8189f50b4c1e42b28f5cf5bb065f052f/FLAGa0f39f5d4 [2025-02-06 09:46:07,834 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:46:07,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i [2025-02-06 09:46:07,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb78df566/8189f50b4c1e42b28f5cf5bb065f052f/FLAGa0f39f5d4 [2025-02-06 09:46:07,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb78df566/8189f50b4c1e42b28f5cf5bb065f052f [2025-02-06 09:46:07,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:46:07,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:46:07,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:46:07,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:46:07,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:46:07,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:46:07" (1/1) ... [2025-02-06 09:46:07,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1404e72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:07, skipping insertion in model container [2025-02-06 09:46:07,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:46:07" (1/1) ... [2025-02-06 09:46:07,914 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:46:08,224 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,257 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,260 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,262 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,269 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,299 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,300 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,302 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,306 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,319 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,319 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,321 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,322 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,322 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,323 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,325 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,326 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,326 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,327 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,329 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:46:08,344 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:46:08,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:46:08,374 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,383 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,384 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,386 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,389 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,403 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,405 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,407 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,411 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,418 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,419 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,420 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,420 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,421 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,421 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,424 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,424 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,425 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,425 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,427 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:46:08,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:46:08,437 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:46:08,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:46:08,571 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:46:08,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08 WrapperNode [2025-02-06 09:46:08,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:46:08,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:46:08,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:46:08,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:46:08,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,659 INFO L138 Inliner]: procedures = 179, calls = 425, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1374 [2025-02-06 09:46:08,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:46:08,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:46:08,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:46:08,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:46:08,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,809 INFO L175 MemorySlicer]: Split 403 memory accesses to 2 slices as follows [2, 401]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 98 writes are split as follows [0, 98]. [2025-02-06 09:46:08,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,854 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:46:08,880 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:46:08,880 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:46:08,880 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:46:08,881 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (1/1) ... [2025-02-06 09:46:08,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:46:08,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:46:08,904 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) [2025-02-06 09:46:08,912 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 [2025-02-06 09:46:08,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 09:46:08,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 09:46:08,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:46:08,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 09:46:08,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 09:46:08,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:46:08,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:46:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:46:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:46:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:46:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:46:08,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:46:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:46:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:46:09,106 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:46:09,108 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:46:21,665 INFO L? ?]: Removed 197 outVars from TransFormulas that were not future-live. [2025-02-06 09:46:21,665 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:46:21,680 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:46:21,681 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:46:21,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:46:21 BoogieIcfgContainer [2025-02-06 09:46:21,681 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:46:21,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:46:21,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:46:21,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:46:21,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:46:07" (1/3) ... [2025-02-06 09:46:21,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2201c924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:46:21, skipping insertion in model container [2025-02-06 09:46:21,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:46:08" (2/3) ... [2025-02-06 09:46:21,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2201c924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:46:21, skipping insertion in model container [2025-02-06 09:46:21,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:46:21" (3/3) ... [2025-02-06 09:46:21,689 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test4-3.i [2025-02-06 09:46:21,699 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:46:21,700 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test4-3.i that has 3 procedures, 246 locations, 1 initial locations, 45 loop locations, and 2 error locations. [2025-02-06 09:46:21,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:46:21,763 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;@47d283a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:46:21,764 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:46:21,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 232 states have (on average 1.6508620689655173) internal successors, (383), 234 states have internal predecessors, (383), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 09:46:21,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 09:46:21,772 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:46:21,772 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 09:46:21,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:46:21,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:46:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash 13204862, now seen corresponding path program 1 times [2025-02-06 09:46:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:46:21,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889137848] [2025-02-06 09:46:21,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:46:21,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:46:21,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:46:21,788 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) [2025-02-06 09:46:21,789 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 [2025-02-06 09:46:21,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 09:46:21,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 09:46:21,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:46:21,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:46:21,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 09:46:21,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:46:21,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:46:21,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:46:21,988 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:46:21,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889137848] [2025-02-06 09:46:21,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889137848] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:46:21,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:46:21,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:46:21,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200277511] [2025-02-06 09:46:21,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:46:21,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:46:21,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:46:22,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:46:22,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:46:22,015 INFO L87 Difference]: Start difference. First operand has 242 states, 232 states have (on average 1.6508620689655173) internal successors, (383), 234 states have internal predecessors, (383), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-06 09:46:26,086 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 [] [2025-02-06 09:46:30,126 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 [] [2025-02-06 09:46:30,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:46:30,956 INFO L93 Difference]: Finished difference Result 301 states and 396 transitions. [2025-02-06 09:46:30,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:46:30,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-06 09:46:30,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:46:30,971 INFO L225 Difference]: With dead ends: 301 [2025-02-06 09:46:30,971 INFO L226 Difference]: Without dead ends: 298 [2025-02-06 09:46:30,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:46:30,974 INFO L435 NwaCegarLoop]: 344 mSDtfsCounter, 77 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2025-02-06 09:46:30,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 641 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2025-02-06 09:46:30,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2025-02-06 09:46:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 248. [2025-02-06 09:46:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 239 states have (on average 1.3138075313807531) internal successors, (314), 240 states have internal predecessors, (314), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 09:46:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 326 transitions. [2025-02-06 09:46:31,011 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 326 transitions. Word has length 4 [2025-02-06 09:46:31,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:46:31,012 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 326 transitions. [2025-02-06 09:46:31,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-06 09:46:31,012 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 326 transitions. [2025-02-06 09:46:31,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 09:46:31,012 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:46:31,012 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:46:31,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:46:31,213 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 [2025-02-06 09:46:31,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:46:31,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:46:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1616898500, now seen corresponding path program 1 times [2025-02-06 09:46:31,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:46:31,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430009113] [2025-02-06 09:46:31,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:46:31,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:46:31,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:46:31,224 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) [2025-02-06 09:46:31,225 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 [2025-02-06 09:46:31,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 09:46:31,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 09:46:31,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:46:31,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:46:31,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:46:31,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:46:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:46:31,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:46:31,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:46:31,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430009113] [2025-02-06 09:46:31,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430009113] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:46:31,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:46:31,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:46:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468628731] [2025-02-06 09:46:31,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:46:31,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:46:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:46:31,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:46:31,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:46:31,411 INFO L87 Difference]: Start difference. First operand 248 states and 326 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:46:35,856 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 [] [2025-02-06 09:46:40,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:46:41,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:46:47,768 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 [] [2025-02-06 09:46:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:46:48,489 INFO L93 Difference]: Finished difference Result 365 states and 478 transitions. [2025-02-06 09:46:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:46:48,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 09:46:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:46:48,494 INFO L225 Difference]: With dead ends: 365 [2025-02-06 09:46:48,494 INFO L226 Difference]: Without dead ends: 365 [2025-02-06 09:46:48,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:46:48,495 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 153 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:46:48,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 857 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2025-02-06 09:46:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2025-02-06 09:46:48,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2025-02-06 09:46:48,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 353 states have (on average 1.3031161473087818) internal successors, (460), 354 states have internal predecessors, (460), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 09:46:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 478 transitions. [2025-02-06 09:46:48,542 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 478 transitions. Word has length 10 [2025-02-06 09:46:48,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:46:48,542 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 478 transitions. [2025-02-06 09:46:48,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:46:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 478 transitions. [2025-02-06 09:46:48,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-06 09:46:48,543 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:46:48,543 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:46:48,550 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 [2025-02-06 09:46:48,743 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 [2025-02-06 09:46:48,744 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:46:48,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:46:48,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1647336108, now seen corresponding path program 1 times [2025-02-06 09:46:48,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:46:48,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1435589148] [2025-02-06 09:46:48,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:46:48,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:46:48,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:46:48,751 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) [2025-02-06 09:46:48,752 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 [2025-02-06 09:46:48,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 09:46:48,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 09:46:48,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:46:48,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:46:48,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:46:48,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:46:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:46:48,942 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:46:48,942 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:46:48,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435589148] [2025-02-06 09:46:48,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435589148] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:46:48,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:46:48,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:46:48,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482617552] [2025-02-06 09:46:48,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:46:48,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:46:48,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:46:48,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:46:48,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:46:48,943 INFO L87 Difference]: Start difference. First operand 365 states and 478 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2025-02-06 09:46:49,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:46:49,417 INFO L93 Difference]: Finished difference Result 415 states and 543 transitions. [2025-02-06 09:46:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:46:49,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2025-02-06 09:46:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:46:49,424 INFO L225 Difference]: With dead ends: 415 [2025-02-06 09:46:49,424 INFO L226 Difference]: Without dead ends: 415 [2025-02-06 09:46:49,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:46:49,425 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 118 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 09:46:49,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 590 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 09:46:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2025-02-06 09:46:49,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 363. [2025-02-06 09:46:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 351 states have (on average 1.2991452991452992) internal successors, (456), 352 states have internal predecessors, (456), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 09:46:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 474 transitions. [2025-02-06 09:46:49,435 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 474 transitions. Word has length 23 [2025-02-06 09:46:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:46:49,435 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 474 transitions. [2025-02-06 09:46:49,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2025-02-06 09:46:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 474 transitions. [2025-02-06 09:46:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-06 09:46:49,436 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:46:49,436 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:46:49,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:46:49,636 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 [2025-02-06 09:46:49,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:46:49,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:46:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1650558835, now seen corresponding path program 1 times [2025-02-06 09:46:49,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:46:49,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263243343] [2025-02-06 09:46:49,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:46:49,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:46:49,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:46:49,639 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) [2025-02-06 09:46:49,641 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 [2025-02-06 09:46:49,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 09:46:49,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 09:46:49,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:46:49,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:46:49,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:46:49,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:46:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:46:49,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:46:49,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:46:49,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263243343] [2025-02-06 09:46:49,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263243343] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:46:49,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:46:49,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:46:49,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330180893] [2025-02-06 09:46:49,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:46:49,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:46:49,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:46:49,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:46:49,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:46:49,807 INFO L87 Difference]: Start difference. First operand 363 states and 474 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2025-02-06 09:46:53,953 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 [] [2025-02-06 09:46:58,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:47:00,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:47:02,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:47:02,515 INFO L93 Difference]: Finished difference Result 415 states and 542 transitions. [2025-02-06 09:47:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:47:02,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2025-02-06 09:47:02,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:47:02,520 INFO L225 Difference]: With dead ends: 415 [2025-02-06 09:47:02,520 INFO L226 Difference]: Without dead ends: 411 [2025-02-06 09:47:02,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:47:02,521 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 120 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2025-02-06 09:47:02,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 889 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2025-02-06 09:47:02,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2025-02-06 09:47:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 359. [2025-02-06 09:47:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 347 states have (on average 1.2997118155619596) internal successors, (451), 348 states have internal predecessors, (451), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 09:47:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 469 transitions. [2025-02-06 09:47:02,543 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 469 transitions. Word has length 23 [2025-02-06 09:47:02,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:47:02,543 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 469 transitions. [2025-02-06 09:47:02,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2025-02-06 09:47:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 469 transitions. [2025-02-06 09:47:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-06 09:47:02,547 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:47:02,547 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:47:02,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 09:47:02,751 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 [2025-02-06 09:47:02,751 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:47:02,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:47:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash 526234546, now seen corresponding path program 1 times [2025-02-06 09:47:02,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:47:02,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580084461] [2025-02-06 09:47:02,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:47:02,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:47:02,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:47:02,759 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) [2025-02-06 09:47:02,761 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 [2025-02-06 09:47:03,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-06 09:47:03,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 09:47:03,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:47:03,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:47:03,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:47:03,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:47:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 09:47:03,648 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:47:03,649 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:47:03,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580084461] [2025-02-06 09:47:03,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580084461] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:47:03,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:47:03,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:47:03,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232904877] [2025-02-06 09:47:03,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:47:03,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:47:03,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:47:03,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:47:03,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:47:03,651 INFO L87 Difference]: Start difference. First operand 359 states and 469 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 09:47:07,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:47:11,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:47:15,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:47:19,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:47:26,858 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 [] [2025-02-06 09:47:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:47:27,424 INFO L93 Difference]: Finished difference Result 367 states and 477 transitions. [2025-02-06 09:47:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:47:27,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 143 [2025-02-06 09:47:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:47:27,430 INFO L225 Difference]: With dead ends: 367 [2025-02-06 09:47:27,430 INFO L226 Difference]: Without dead ends: 367 [2025-02-06 09:47:27,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:47:27,431 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 307 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2025-02-06 09:47:27,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 692 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 4 Unknown, 0 Unchecked, 23.7s Time] [2025-02-06 09:47:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-02-06 09:47:27,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 360. [2025-02-06 09:47:27,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 348 states have (on average 1.2959770114942528) internal successors, (451), 349 states have internal predecessors, (451), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 09:47:27,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 469 transitions. [2025-02-06 09:47:27,438 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 469 transitions. Word has length 143 [2025-02-06 09:47:27,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:47:27,439 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 469 transitions. [2025-02-06 09:47:27,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 09:47:27,439 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 469 transitions. [2025-02-06 09:47:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-06 09:47:27,444 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:47:27,444 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:47:27,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 09:47:27,645 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 [2025-02-06 09:47:27,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:47:27,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:47:27,646 INFO L85 PathProgramCache]: Analyzing trace with hash -511515321, now seen corresponding path program 1 times [2025-02-06 09:47:27,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:47:27,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028743147] [2025-02-06 09:47:27,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:47:27,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:47:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:47:27,649 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) [2025-02-06 09:47:27,650 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 [2025-02-06 09:47:27,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 09:47:28,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 09:47:28,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:47:28,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:47:28,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:47:28,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:47:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 09:47:28,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:47:28,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:47:28,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028743147] [2025-02-06 09:47:28,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028743147] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:47:28,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:47:28,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:47:28,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37011961] [2025-02-06 09:47:28,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:47:28,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:47:28,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:47:28,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:47:28,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:47:28,184 INFO L87 Difference]: Start difference. First operand 360 states and 469 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 09:47:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:47:28,268 INFO L93 Difference]: Finished difference Result 366 states and 459 transitions. [2025-02-06 09:47:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:47:28,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 144 [2025-02-06 09:47:28,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:47:28,270 INFO L225 Difference]: With dead ends: 366 [2025-02-06 09:47:28,270 INFO L226 Difference]: Without dead ends: 366 [2025-02-06 09:47:28,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:47:28,270 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 30 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:47:28,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 830 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:47:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2025-02-06 09:47:28,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2025-02-06 09:47:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 354 states have (on average 1.2457627118644068) internal successors, (441), 355 states have internal predecessors, (441), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 09:47:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 459 transitions. [2025-02-06 09:47:28,279 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 459 transitions. Word has length 144 [2025-02-06 09:47:28,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:47:28,280 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 459 transitions. [2025-02-06 09:47:28,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 09:47:28,280 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 459 transitions. [2025-02-06 09:47:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-06 09:47:28,281 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:47:28,281 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:47:28,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:47:28,486 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 [2025-02-06 09:47:28,486 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:47:28,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:47:28,487 INFO L85 PathProgramCache]: Analyzing trace with hash 250337376, now seen corresponding path program 1 times [2025-02-06 09:47:28,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:47:28,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580589338] [2025-02-06 09:47:28,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:47:28,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:47:28,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:47:28,489 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) [2025-02-06 09:47:28,491 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 [2025-02-06 09:47:28,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 09:47:28,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 09:47:28,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:47:28,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:47:29,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:47:29,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:47:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-06 09:47:29,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:47:29,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:47:29,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580589338] [2025-02-06 09:47:29,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580589338] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:47:29,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:47:29,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:47:29,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492545606] [2025-02-06 09:47:29,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:47:29,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:47:29,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:47:29,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:47:29,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:47:29,048 INFO L87 Difference]: Start difference. First operand 366 states and 459 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:47:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:47:29,164 INFO L93 Difference]: Finished difference Result 372 states and 449 transitions. [2025-02-06 09:47:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:47:29,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 144 [2025-02-06 09:47:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:47:29,168 INFO L225 Difference]: With dead ends: 372 [2025-02-06 09:47:29,168 INFO L226 Difference]: Without dead ends: 372 [2025-02-06 09:47:29,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:47:29,169 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 30 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:47:29,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 797 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:47:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2025-02-06 09:47:29,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2025-02-06 09:47:29,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 360 states have (on average 1.1972222222222222) internal successors, (431), 361 states have internal predecessors, (431), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 09:47:29,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 449 transitions. [2025-02-06 09:47:29,178 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 449 transitions. Word has length 144 [2025-02-06 09:47:29,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:47:29,178 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 449 transitions. [2025-02-06 09:47:29,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:47:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 449 transitions. [2025-02-06 09:47:29,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-06 09:47:29,180 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:47:29,180 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:47:29,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 09:47:29,384 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 [2025-02-06 09:47:29,384 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:47:29,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:47:29,386 INFO L85 PathProgramCache]: Analyzing trace with hash 235755047, now seen corresponding path program 1 times [2025-02-06 09:47:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:47:29,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328747259] [2025-02-06 09:47:29,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:47:29,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:47:29,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:47:29,389 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) [2025-02-06 09:47:29,390 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 [2025-02-06 09:47:29,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 09:47:29,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 09:47:29,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:47:29,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:47:29,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:47:29,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:47:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 09:47:30,020 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:47:30,020 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:47:30,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328747259] [2025-02-06 09:47:30,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328747259] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:47:30,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:47:30,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:47:30,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917354194] [2025-02-06 09:47:30,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:47:30,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:47:30,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:47:30,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:47:30,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:47:30,021 INFO L87 Difference]: Start difference. First operand 372 states and 449 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:47:30,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:47:30,080 INFO L93 Difference]: Finished difference Result 375 states and 455 transitions. [2025-02-06 09:47:30,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:47:30,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 144 [2025-02-06 09:47:30,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:47:30,083 INFO L225 Difference]: With dead ends: 375 [2025-02-06 09:47:30,083 INFO L226 Difference]: Without dead ends: 375 [2025-02-06 09:47:30,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:47:30,084 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 0 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:47:30,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 851 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:47:30,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-02-06 09:47:30,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2025-02-06 09:47:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 362 states have (on average 1.1988950276243093) internal successors, (434), 364 states have internal predecessors, (434), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2025-02-06 09:47:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 455 transitions. [2025-02-06 09:47:30,090 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 455 transitions. Word has length 144 [2025-02-06 09:47:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:47:30,091 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 455 transitions. [2025-02-06 09:47:30,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:47:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 455 transitions. [2025-02-06 09:47:30,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-06 09:47:30,092 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:47:30,092 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:47:30,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 09:47:30,296 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 [2025-02-06 09:47:30,296 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:47:30,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:47:30,298 INFO L85 PathProgramCache]: Analyzing trace with hash 170176935, now seen corresponding path program 1 times [2025-02-06 09:47:30,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:47:30,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899834039] [2025-02-06 09:47:30,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:47:30,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:47:30,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:47:30,300 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) [2025-02-06 09:47:30,302 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 [2025-02-06 09:47:30,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 09:47:30,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 09:47:30,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:47:30,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:47:30,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:47:30,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:47:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:47:30,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:47:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 09:47:31,029 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:47:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899834039] [2025-02-06 09:47:31,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899834039] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:47:31,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:47:31,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 09:47:31,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633057209] [2025-02-06 09:47:31,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:47:31,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:47:31,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:47:31,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:47:31,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:47:31,030 INFO L87 Difference]: Start difference. First operand 375 states and 455 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 09:47:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:47:31,249 INFO L93 Difference]: Finished difference Result 386 states and 476 transitions. [2025-02-06 09:47:31,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:47:31,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 148 [2025-02-06 09:47:31,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:47:31,251 INFO L225 Difference]: With dead ends: 386 [2025-02-06 09:47:31,251 INFO L226 Difference]: Without dead ends: 386 [2025-02-06 09:47:31,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:47:31,252 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 5 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:47:31,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 847 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:47:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-02-06 09:47:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 384. [2025-02-06 09:47:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 370 states have (on average 1.2108108108108109) internal successors, (448), 372 states have internal predecessors, (448), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2025-02-06 09:47:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 472 transitions. [2025-02-06 09:47:31,259 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 472 transitions. Word has length 148 [2025-02-06 09:47:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:47:31,260 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 472 transitions. [2025-02-06 09:47:31,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 09:47:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 472 transitions. [2025-02-06 09:47:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-02-06 09:47:31,261 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:47:31,261 INFO L218 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:47:31,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 09:47:31,461 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 [2025-02-06 09:47:31,462 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:47:31,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:47:31,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1329987111, now seen corresponding path program 2 times [2025-02-06 09:47:31,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:47:31,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154924371] [2025-02-06 09:47:31,463 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:47:31,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:47:31,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:47:31,465 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) [2025-02-06 09:47:31,467 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 [2025-02-06 09:47:31,839 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 156 statements into 2 equivalence classes. [2025-02-06 09:47:32,048 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 156 of 156 statements. [2025-02-06 09:47:32,049 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:47:32,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:47:32,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:47:32,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:47:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 09:47:32,154 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:47:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-02-06 09:47:32,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:47:32,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154924371] [2025-02-06 09:47:32,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154924371] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:47:32,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:47:32,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 09:47:32,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645139148] [2025-02-06 09:47:32,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:47:32,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:47:32,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:47:32,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:47:32,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:47:32,374 INFO L87 Difference]: Start difference. First operand 384 states and 472 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 09:47:32,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:47:32,841 INFO L93 Difference]: Finished difference Result 392 states and 482 transitions. [2025-02-06 09:47:32,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:47:32,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 156 [2025-02-06 09:47:32,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:47:32,844 INFO L225 Difference]: With dead ends: 392 [2025-02-06 09:47:32,844 INFO L226 Difference]: Without dead ends: 390 [2025-02-06 09:47:32,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:47:32,845 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 5 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:47:32,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1687 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 09:47:32,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-02-06 09:47:32,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2025-02-06 09:47:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 374 states have (on average 1.213903743315508) internal successors, (454), 376 states have internal predecessors, (454), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2025-02-06 09:47:32,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 475 transitions. [2025-02-06 09:47:32,853 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 475 transitions. Word has length 156 [2025-02-06 09:47:32,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:47:32,853 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 475 transitions. [2025-02-06 09:47:32,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 09:47:32,853 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 475 transitions. [2025-02-06 09:47:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-06 09:47:32,854 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:47:32,854 INFO L218 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:47:32,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 09:47:33,055 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 [2025-02-06 09:47:33,055 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:47:33,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:47:33,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1417072167, now seen corresponding path program 3 times [2025-02-06 09:47:33,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:47:33,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382910468] [2025-02-06 09:47:33,057 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:47:33,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:47:33,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:47:33,059 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) [2025-02-06 09:47:33,061 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 [2025-02-06 09:47:33,440 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 164 statements into 13 equivalence classes.