./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:51:48,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:51:48,172 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-01-09 21:51:48,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:51:48,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:51:48,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:51:48,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:51:48,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:51:48,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 21:51:48,197 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 21:51:48,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:51:48,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:51:48,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:51:48,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:51:48,198 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:51:48,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:51:48,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:51:48,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:51:48,200 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:51:48,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:51:48,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:51:48,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:51:48,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:51:48,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:51:48,202 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:51:48,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:51:48,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:51:48,202 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2025-01-09 21:51:48,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:51:48,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:51:48,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:51:48,402 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:51:48,402 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:51:48,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2025-01-09 21:51:49,584 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06c1877af/0c64199a99cb48b0bfb293da0c196a9b/FLAGa8f85b2f7 [2025-01-09 21:51:49,905 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:51:49,906 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2025-01-09 21:51:49,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06c1877af/0c64199a99cb48b0bfb293da0c196a9b/FLAGa8f85b2f7 [2025-01-09 21:51:49,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06c1877af/0c64199a99cb48b0bfb293da0c196a9b [2025-01-09 21:51:49,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:51:49,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:51:49,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:51:49,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:51:49,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:51:49,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:51:49" (1/1) ... [2025-01-09 21:51:49,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ab9cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:49, skipping insertion in model container [2025-01-09 21:51:49,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:51:49" (1/1) ... [2025-01-09 21:51:49,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:51:50,221 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,239 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,242 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,244 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,248 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,269 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,269 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,272 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,272 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,272 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,275 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:50,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:51:50,287 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-01-09 21:51:50,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f6c288b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:50, skipping insertion in model container [2025-01-09 21:51:50,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:51:50,287 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-09 21:51:50,289 INFO L158 Benchmark]: Toolchain (without parser) took 351.56ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 138.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:51:50,289 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 209.7MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:51:50,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.72ms. Allocated memory is still 201.3MB. Free memory was 157.4MB in the beginning and 138.4MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:51:50,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 209.7MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.72ms. Allocated memory is still 201.3MB. Free memory was 157.4MB in the beginning and 138.4MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:51:51,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:51:52,013 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-01-09 21:51:52,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:51:52,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:51:52,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:51:52,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:51:52,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:51:52,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 21:51:52,065 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 21:51:52,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:51:52,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:51:52,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:51:52,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:51:52,066 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:51:52,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:51:52,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 21:51:52,067 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 21:51:52,068 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 21:51:52,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:51:52,068 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:51:52,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:51:52,068 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:51:52,068 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:51:52,068 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:51:52,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:51:52,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:51:52,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:51:52,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:51:52,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:51:52,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:51:52,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 21:51:52,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:51:52,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:51:52,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:51:52,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:51:52,070 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 21:51:52,070 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 21:51:52,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:51:52,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:51:52,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:51:52,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:51:52,071 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2025-01-09 21:51:52,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:51:52,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:51:52,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:51:52,311 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:51:52,311 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:51:52,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2025-01-09 21:51:53,490 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/51a857e75/ca2a3c156b0d44a2b276eba7205f8a47/FLAGa6fe82e64 [2025-01-09 21:51:53,801 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:51:53,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2025-01-09 21:51:53,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/51a857e75/ca2a3c156b0d44a2b276eba7205f8a47/FLAGa6fe82e64 [2025-01-09 21:51:53,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/51a857e75/ca2a3c156b0d44a2b276eba7205f8a47 [2025-01-09 21:51:53,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:51:53,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:51:53,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:51:53,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:51:53,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:51:53,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:51:53" (1/1) ... [2025-01-09 21:51:53,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713cf5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:53, skipping insertion in model container [2025-01-09 21:51:53,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:51:53" (1/1) ... [2025-01-09 21:51:53,871 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:51:54,153 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,181 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,187 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,191 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,197 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,222 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,222 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,224 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,224 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,227 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,229 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,231 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,232 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,237 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:51:54,255 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-09 21:51:54,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:51:54,289 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,311 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,313 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,318 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,321 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,344 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,344 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,350 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,350 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,351 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,352 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,352 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,353 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,355 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 21:51:54,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:51:54,359 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:51:54,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:51:54,444 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:51:54,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54 WrapperNode [2025-01-09 21:51:54,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:51:54,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:51:54,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:51:54,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:51:54,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,497 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 986 [2025-01-09 21:51:54,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:51:54,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:51:54,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:51:54,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:51:54,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,557 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-01-09 21:51:54,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,579 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:51:54,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:51:54,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:51:54,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:51:54,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (1/1) ... [2025-01-09 21:51:54,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:51:54,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:51:54,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:51:54,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:51:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-09 21:51:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-09 21:51:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-09 21:51:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 21:51:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 21:51:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 21:51:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 21:51:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 21:51:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 21:51:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 21:51:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 21:51:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 21:51:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 21:51:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 21:51:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 21:51:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 21:51:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 21:51:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 21:51:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:51:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 21:51:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 21:51:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 21:51:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:51:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:51:54,849 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:51:54,850 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:52:02,671 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2025-01-09 21:52:02,672 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:52:02,682 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:52:02,682 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2025-01-09 21:52:02,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:52:02 BoogieIcfgContainer [2025-01-09 21:52:02,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:52:02,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:52:02,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:52:02,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:52:02,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:51:53" (1/3) ... [2025-01-09 21:52:02,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a066249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:52:02, skipping insertion in model container [2025-01-09 21:52:02,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:51:54" (2/3) ... [2025-01-09 21:52:02,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a066249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:52:02, skipping insertion in model container [2025-01-09 21:52:02,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:52:02" (3/3) ... [2025-01-09 21:52:02,688 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-1.i [2025-01-09 21:52:02,697 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:52:02,698 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_nondet_test3-1.i that has 5 procedures, 207 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-01-09 21:52:02,722 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:52:02,729 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;@69b0295e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:52:02,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 21:52:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 189 states have (on average 1.6455026455026456) internal successors, (311), 192 states have internal predecessors, (311), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 21:52:02,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 21:52:02,734 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:02,735 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 21:52:02,735 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:02,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1665198, now seen corresponding path program 1 times [2025-01-09 21:52:02,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:02,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138602256] [2025-01-09 21:52:02,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:02,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:02,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:02,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:02,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 21:52:02,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 21:52:02,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 21:52:02,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:02,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:02,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 21:52:02,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:02,926 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2025-01-09 21:52:02,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:52:02,929 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:02,929 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:02,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138602256] [2025-01-09 21:52:02,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138602256] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:02,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:02,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:52:02,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392439120] [2025-01-09 21:52:02,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:02,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:52:02,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:02,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:52:02,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-01-09 21:52:02,954 INFO L87 Difference]: Start difference. First operand has 199 states, 189 states have (on average 1.6455026455026456) internal successors, (311), 192 states have internal predecessors, (311), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2025-01-09 21:52:07,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:52:07,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:07,470 INFO L93 Difference]: Finished difference Result 292 states and 383 transitions. [2025-01-09 21:52:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:52:07,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2025-01-09 21:52:07,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:07,481 INFO L225 Difference]: With dead ends: 292 [2025-01-09 21:52:07,481 INFO L226 Difference]: Without dead ends: 289 [2025-01-09 21:52:07,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-01-09 21:52:07,483 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 119 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 384 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:07,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 384 Unchecked, 4.5s Time] [2025-01-09 21:52:07,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2025-01-09 21:52:07,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 196. [2025-01-09 21:52:07,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 187 states have (on average 1.2994652406417113) internal successors, (243), 189 states have internal predecessors, (243), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-01-09 21:52:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 253 transitions. [2025-01-09 21:52:07,511 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 253 transitions. Word has length 4 [2025-01-09 21:52:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:07,511 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 253 transitions. [2025-01-09 21:52:07,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2025-01-09 21:52:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 253 transitions. [2025-01-09 21:52:07,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-09 21:52:07,512 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:07,512 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:07,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 21:52:07,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:07,717 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:07,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:07,718 INFO L85 PathProgramCache]: Analyzing trace with hash 198916994, now seen corresponding path program 1 times [2025-01-09 21:52:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:07,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966684257] [2025-01-09 21:52:07,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:07,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:07,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:07,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:07,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 21:52:07,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-09 21:52:07,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-09 21:52:07,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:07,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:07,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 21:52:07,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:07,933 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2025-01-09 21:52:07,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:52:07,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:07,934 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:07,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966684257] [2025-01-09 21:52:07,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966684257] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:07,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:07,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:52:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668185879] [2025-01-09 21:52:07,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:07,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:52:07,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:07,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:52:07,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-01-09 21:52:07,935 INFO L87 Difference]: Start difference. First operand 196 states and 253 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:12,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:52:12,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:12,682 INFO L93 Difference]: Finished difference Result 290 states and 379 transitions. [2025-01-09 21:52:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:52:12,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2025-01-09 21:52:12,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:12,689 INFO L225 Difference]: With dead ends: 290 [2025-01-09 21:52:12,689 INFO L226 Difference]: Without dead ends: 289 [2025-01-09 21:52:12,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-01-09 21:52:12,690 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 112 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 378 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:12,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 479 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 378 Unchecked, 4.7s Time] [2025-01-09 21:52:12,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2025-01-09 21:52:12,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 264. [2025-01-09 21:52:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 253 states have (on average 1.308300395256917) internal successors, (331), 255 states have internal predecessors, (331), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 21:52:12,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 345 transitions. [2025-01-09 21:52:12,701 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 345 transitions. Word has length 11 [2025-01-09 21:52:12,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:12,701 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 345 transitions. [2025-01-09 21:52:12,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:12,701 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 345 transitions. [2025-01-09 21:52:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 21:52:12,701 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:12,701 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:12,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 21:52:12,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:12,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:12,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash -383657690, now seen corresponding path program 1 times [2025-01-09 21:52:12,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:12,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871655750] [2025-01-09 21:52:12,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:12,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:12,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:12,908 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:12,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 21:52:13,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-09 21:52:13,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-09 21:52:13,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:13,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:13,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 21:52:13,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:52:13,090 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:13,090 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:13,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871655750] [2025-01-09 21:52:13,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871655750] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:13,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:13,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:52:13,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970800316] [2025-01-09 21:52:13,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:13,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:52:13,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:13,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:52:13,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:52:13,094 INFO L87 Difference]: Start difference. First operand 264 states and 345 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:17,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:52:19,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:19,835 INFO L93 Difference]: Finished difference Result 353 states and 460 transitions. [2025-01-09 21:52:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:52:19,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-01-09 21:52:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:19,838 INFO L225 Difference]: With dead ends: 353 [2025-01-09 21:52:19,838 INFO L226 Difference]: Without dead ends: 351 [2025-01-09 21:52:19,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:52:19,841 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 135 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:19,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 678 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2025-01-09 21:52:19,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2025-01-09 21:52:19,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 350. [2025-01-09 21:52:19,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 339 states have (on average 1.3067846607669618) internal successors, (443), 342 states have internal predecessors, (443), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 21:52:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 457 transitions. [2025-01-09 21:52:19,854 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 457 transitions. Word has length 15 [2025-01-09 21:52:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:19,854 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 457 transitions. [2025-01-09 21:52:19,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 457 transitions. [2025-01-09 21:52:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 21:52:19,855 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:19,855 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:19,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 21:52:20,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:20,056 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:20,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash -64435415, now seen corresponding path program 1 times [2025-01-09 21:52:20,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:20,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056109051] [2025-01-09 21:52:20,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:20,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:20,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:20,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:20,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 21:52:20,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 21:52:20,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 21:52:20,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:20,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:20,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:52:20,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:52:20,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:20,205 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:20,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056109051] [2025-01-09 21:52:20,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056109051] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:20,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:20,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:52:20,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044911991] [2025-01-09 21:52:20,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:20,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:52:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:20,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:52:20,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:52:20,206 INFO L87 Difference]: Start difference. First operand 350 states and 457 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:20,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:20,288 INFO L93 Difference]: Finished difference Result 410 states and 517 transitions. [2025-01-09 21:52:20,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:52:20,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-01-09 21:52:20,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:20,290 INFO L225 Difference]: With dead ends: 410 [2025-01-09 21:52:20,290 INFO L226 Difference]: Without dead ends: 410 [2025-01-09 21:52:20,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:52:20,291 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 8 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:20,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 451 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:52:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2025-01-09 21:52:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2025-01-09 21:52:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 399 states have (on average 1.2606516290726817) internal successors, (503), 402 states have internal predecessors, (503), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 21:52:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 517 transitions. [2025-01-09 21:52:20,305 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 517 transitions. Word has length 50 [2025-01-09 21:52:20,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:20,305 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 517 transitions. [2025-01-09 21:52:20,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 517 transitions. [2025-01-09 21:52:20,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 21:52:20,306 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:20,306 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:20,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 21:52:20,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:20,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:20,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:20,508 INFO L85 PathProgramCache]: Analyzing trace with hash -126475029, now seen corresponding path program 1 times [2025-01-09 21:52:20,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:20,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470013306] [2025-01-09 21:52:20,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:20,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:20,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:20,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:20,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 21:52:20,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 21:52:20,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 21:52:20,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:20,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:20,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:52:20,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:52:20,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:20,682 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:20,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470013306] [2025-01-09 21:52:20,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470013306] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:20,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:20,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:52:20,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613438527] [2025-01-09 21:52:20,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:20,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:52:20,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:20,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:52:20,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:52:20,683 INFO L87 Difference]: Start difference. First operand 410 states and 517 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:20,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:20,794 INFO L93 Difference]: Finished difference Result 359 states and 433 transitions. [2025-01-09 21:52:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:52:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-01-09 21:52:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:20,796 INFO L225 Difference]: With dead ends: 359 [2025-01-09 21:52:20,796 INFO L226 Difference]: Without dead ends: 359 [2025-01-09 21:52:20,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:52:20,796 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 32 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:20,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 649 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:52:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2025-01-09 21:52:20,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2025-01-09 21:52:20,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 348 states have (on average 1.2040229885057472) internal successors, (419), 351 states have internal predecessors, (419), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 21:52:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 433 transitions. [2025-01-09 21:52:20,807 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 433 transitions. Word has length 50 [2025-01-09 21:52:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:20,807 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 433 transitions. [2025-01-09 21:52:20,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:20,808 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 433 transitions. [2025-01-09 21:52:20,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 21:52:20,811 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:20,811 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:20,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 21:52:21,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:21,012 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:21,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash 350741277, now seen corresponding path program 1 times [2025-01-09 21:52:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:21,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504832279] [2025-01-09 21:52:21,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:21,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:21,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:21,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 21:52:21,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 21:52:21,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 21:52:21,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:21,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:21,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 21:52:21,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:21,156 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:52:21,157 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:52:21,157 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:52:21,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-01-09 21:52:21,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:52:21,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-01-09 21:52:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:52:21,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:21,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504832279] [2025-01-09 21:52:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504832279] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:21,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:21,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:52:21,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481862967] [2025-01-09 21:52:21,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:21,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 21:52:21,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:21,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 21:52:21,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:52:21,302 INFO L87 Difference]: Start difference. First operand 359 states and 433 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:21,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:21,769 INFO L93 Difference]: Finished difference Result 361 states and 444 transitions. [2025-01-09 21:52:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:52:21,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-01-09 21:52:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:21,774 INFO L225 Difference]: With dead ends: 361 [2025-01-09 21:52:21,774 INFO L226 Difference]: Without dead ends: 358 [2025-01-09 21:52:21,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 21:52:21,774 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 108 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:21,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 914 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 21:52:21,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2025-01-09 21:52:21,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 311. [2025-01-09 21:52:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 301 states have (on average 1.2259136212624584) internal successors, (369), 304 states have internal predecessors, (369), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-09 21:52:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 381 transitions. [2025-01-09 21:52:21,784 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 381 transitions. Word has length 50 [2025-01-09 21:52:21,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:21,785 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 381 transitions. [2025-01-09 21:52:21,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:52:21,785 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 381 transitions. [2025-01-09 21:52:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-09 21:52:21,788 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:21,789 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:21,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 21:52:21,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:21,990 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:21,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1069582659, now seen corresponding path program 1 times [2025-01-09 21:52:21,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:21,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885910268] [2025-01-09 21:52:21,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:21,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:21,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:21,993 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:21,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 21:52:22,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-09 21:52:22,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-09 21:52:22,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:22,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:22,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:52:22,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 21:52:22,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:22,311 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:22,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885910268] [2025-01-09 21:52:22,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885910268] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:22,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:22,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:52:22,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471066570] [2025-01-09 21:52:22,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:22,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:52:22,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:22,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:52:22,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:52:22,313 INFO L87 Difference]: Start difference. First operand 311 states and 381 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:22,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:22,444 INFO L93 Difference]: Finished difference Result 351 states and 421 transitions. [2025-01-09 21:52:22,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:52:22,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-01-09 21:52:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:22,445 INFO L225 Difference]: With dead ends: 351 [2025-01-09 21:52:22,445 INFO L226 Difference]: Without dead ends: 351 [2025-01-09 21:52:22,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:52:22,446 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 8 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:22,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 429 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:52:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2025-01-09 21:52:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2025-01-09 21:52:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 341 states have (on average 1.1994134897360704) internal successors, (409), 344 states have internal predecessors, (409), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-09 21:52:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 421 transitions. [2025-01-09 21:52:22,451 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 421 transitions. Word has length 82 [2025-01-09 21:52:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:22,452 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 421 transitions. [2025-01-09 21:52:22,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:22,452 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 421 transitions. [2025-01-09 21:52:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-09 21:52:22,452 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:22,453 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:22,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 21:52:22,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:22,653 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:22,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1748854913, now seen corresponding path program 1 times [2025-01-09 21:52:22,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:22,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665815079] [2025-01-09 21:52:22,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:22,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:22,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:22,660 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:22,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 21:52:22,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-09 21:52:22,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-09 21:52:22,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:22,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:22,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 21:52:22,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 21:52:23,115 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:23,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665815079] [2025-01-09 21:52:23,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665815079] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:23,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:23,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:52:23,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641673839] [2025-01-09 21:52:23,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:23,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:52:23,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:23,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:52:23,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:52:23,117 INFO L87 Difference]: Start difference. First operand 351 states and 421 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:27,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:52:31,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:52:33,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:33,586 INFO L93 Difference]: Finished difference Result 442 states and 530 transitions. [2025-01-09 21:52:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:52:33,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-01-09 21:52:33,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:33,588 INFO L225 Difference]: With dead ends: 442 [2025-01-09 21:52:33,588 INFO L226 Difference]: Without dead ends: 442 [2025-01-09 21:52:33,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:52:33,588 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 450 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:33,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 429 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2025-01-09 21:52:33,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2025-01-09 21:52:33,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 439. [2025-01-09 21:52:33,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 428 states have (on average 1.1962616822429906) internal successors, (512), 432 states have internal predecessors, (512), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 21:52:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 526 transitions. [2025-01-09 21:52:33,595 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 526 transitions. Word has length 82 [2025-01-09 21:52:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:33,596 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 526 transitions. [2025-01-09 21:52:33,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 526 transitions. [2025-01-09 21:52:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-09 21:52:33,597 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:33,597 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:33,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 21:52:33,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:33,798 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:33,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:33,798 INFO L85 PathProgramCache]: Analyzing trace with hash 969993891, now seen corresponding path program 1 times [2025-01-09 21:52:33,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:33,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876073806] [2025-01-09 21:52:33,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:33,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:33,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:33,801 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:33,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 21:52:34,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 21:52:34,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 21:52:34,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:34,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:34,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:52:34,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 21:52:34,146 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:34,146 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:34,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876073806] [2025-01-09 21:52:34,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876073806] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:34,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:34,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:52:34,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202653928] [2025-01-09 21:52:34,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:34,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:52:34,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:34,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:52:34,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:52:34,147 INFO L87 Difference]: Start difference. First operand 439 states and 526 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:34,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:34,260 INFO L93 Difference]: Finished difference Result 405 states and 470 transitions. [2025-01-09 21:52:34,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:52:34,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2025-01-09 21:52:34,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:34,261 INFO L225 Difference]: With dead ends: 405 [2025-01-09 21:52:34,261 INFO L226 Difference]: Without dead ends: 405 [2025-01-09 21:52:34,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:52:34,262 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 32 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:34,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 616 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:52:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-01-09 21:52:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2025-01-09 21:52:34,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 394 states have (on average 1.1573604060913705) internal successors, (456), 398 states have internal predecessors, (456), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-09 21:52:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 470 transitions. [2025-01-09 21:52:34,268 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 470 transitions. Word has length 86 [2025-01-09 21:52:34,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:34,268 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 470 transitions. [2025-01-09 21:52:34,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 470 transitions. [2025-01-09 21:52:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-09 21:52:34,269 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:34,269 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:34,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 21:52:34,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:34,471 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:34,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:34,471 INFO L85 PathProgramCache]: Analyzing trace with hash 394460117, now seen corresponding path program 1 times [2025-01-09 21:52:34,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:34,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898766136] [2025-01-09 21:52:34,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:34,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:34,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:34,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:34,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 21:52:34,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 21:52:34,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 21:52:34,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:34,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:34,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 21:52:34,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 21:52:34,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:34,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:34,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898766136] [2025-01-09 21:52:34,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898766136] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:34,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:34,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 21:52:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347597436] [2025-01-09 21:52:34,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:34,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 21:52:34,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:34,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 21:52:34,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:52:34,811 INFO L87 Difference]: Start difference. First operand 405 states and 470 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:34,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:34,840 INFO L93 Difference]: Finished difference Result 408 states and 474 transitions. [2025-01-09 21:52:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 21:52:34,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2025-01-09 21:52:34,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:34,843 INFO L225 Difference]: With dead ends: 408 [2025-01-09 21:52:34,844 INFO L226 Difference]: Without dead ends: 408 [2025-01-09 21:52:34,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 21:52:34,844 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:34,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 680 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 21:52:34,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2025-01-09 21:52:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2025-01-09 21:52:34,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 396 states have (on average 1.1590909090909092) internal successors, (459), 401 states have internal predecessors, (459), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-01-09 21:52:34,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 474 transitions. [2025-01-09 21:52:34,851 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 474 transitions. Word has length 86 [2025-01-09 21:52:34,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:34,851 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 474 transitions. [2025-01-09 21:52:34,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:34,851 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 474 transitions. [2025-01-09 21:52:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 21:52:34,852 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:34,852 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:34,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-09 21:52:35,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:35,057 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:35,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:35,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1904737911, now seen corresponding path program 1 times [2025-01-09 21:52:35,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:35,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451611945] [2025-01-09 21:52:35,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:35,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:35,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:35,060 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:35,061 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 [2025-01-09 21:52:35,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 21:52:35,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 21:52:35,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:35,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:35,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 21:52:35,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 21:52:35,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:52:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 21:52:35,506 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:35,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451611945] [2025-01-09 21:52:35,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451611945] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:52:35,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:52:35,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-09 21:52:35,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71754993] [2025-01-09 21:52:35,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:52:35,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 21:52:35,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:35,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 21:52:35,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 21:52:35,508 INFO L87 Difference]: Start difference. First operand 408 states and 474 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 21:52:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:35,686 INFO L93 Difference]: Finished difference Result 419 states and 491 transitions. [2025-01-09 21:52:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:52:35,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 88 [2025-01-09 21:52:35,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:35,694 INFO L225 Difference]: With dead ends: 419 [2025-01-09 21:52:35,694 INFO L226 Difference]: Without dead ends: 419 [2025-01-09 21:52:35,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-09 21:52:35,695 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 5 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:35,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 902 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:52:35,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2025-01-09 21:52:35,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 417. [2025-01-09 21:52:35,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 404 states have (on average 1.1707920792079207) internal successors, (473), 409 states have internal predecessors, (473), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-01-09 21:52:35,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 489 transitions. [2025-01-09 21:52:35,712 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 489 transitions. Word has length 88 [2025-01-09 21:52:35,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:35,713 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 489 transitions. [2025-01-09 21:52:35,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 21:52:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 489 transitions. [2025-01-09 21:52:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 21:52:35,717 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:35,717 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:35,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-09 21:52:35,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:35,918 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:35,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1912022229, now seen corresponding path program 2 times [2025-01-09 21:52:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:35,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117820213] [2025-01-09 21:52:35,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:52:35,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:35,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:35,923 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:35,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 21:52:36,155 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 92 statements into 2 equivalence classes. [2025-01-09 21:52:36,309 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 21:52:36,309 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 21:52:36,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:36,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 21:52:36,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:36,721 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:52:36,722 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:52:36,722 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 21:52:36,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-01-09 21:52:36,789 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 21:52:36,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-01-09 21:52:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 21:52:36,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:52:36,820 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:36,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117820213] [2025-01-09 21:52:36,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117820213] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:52:36,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:52:36,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 21:52:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143092293] [2025-01-09 21:52:36,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:52:36,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:52:36,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:36,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:52:36,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:52:36,821 INFO L87 Difference]: Start difference. First operand 417 states and 489 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:37,119 INFO L93 Difference]: Finished difference Result 526 states and 619 transitions. [2025-01-09 21:52:37,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:52:37,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2025-01-09 21:52:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:37,121 INFO L225 Difference]: With dead ends: 526 [2025-01-09 21:52:37,121 INFO L226 Difference]: Without dead ends: 526 [2025-01-09 21:52:37,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-01-09 21:52:37,122 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 477 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:37,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 625 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 21:52:37,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2025-01-09 21:52:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 419. [2025-01-09 21:52:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 406 states have (on average 1.1699507389162562) internal successors, (475), 411 states have internal predecessors, (475), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-01-09 21:52:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 491 transitions. [2025-01-09 21:52:37,129 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 491 transitions. Word has length 92 [2025-01-09 21:52:37,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:37,129 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 491 transitions. [2025-01-09 21:52:37,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 21:52:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 491 transitions. [2025-01-09 21:52:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-01-09 21:52:37,130 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:37,130 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:37,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-09 21:52:37,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:37,332 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:37,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:37,333 INFO L85 PathProgramCache]: Analyzing trace with hash -449830861, now seen corresponding path program 1 times [2025-01-09 21:52:37,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:37,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243500176] [2025-01-09 21:52:37,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:52:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:37,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:37,336 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:37,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-09 21:52:37,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-01-09 21:52:37,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-01-09 21:52:37,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:52:37,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:37,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 21:52:37,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 21:52:37,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:52:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 21:52:37,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:37,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243500176] [2025-01-09 21:52:37,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243500176] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:52:37,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:52:37,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-09 21:52:37,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734829597] [2025-01-09 21:52:37,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:52:37,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:52:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:37,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:52:37,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:52:37,934 INFO L87 Difference]: Start difference. First operand 419 states and 491 transitions. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 21:52:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:38,165 INFO L93 Difference]: Finished difference Result 427 states and 501 transitions. [2025-01-09 21:52:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 21:52:38,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2025-01-09 21:52:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:38,167 INFO L225 Difference]: With dead ends: 427 [2025-01-09 21:52:38,167 INFO L226 Difference]: Without dead ends: 425 [2025-01-09 21:52:38,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-01-09 21:52:38,167 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 6 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:38,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1357 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 21:52:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2025-01-09 21:52:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 423. [2025-01-09 21:52:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 410 states have (on average 1.173170731707317) internal successors, (481), 415 states have internal predecessors, (481), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-01-09 21:52:38,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 496 transitions. [2025-01-09 21:52:38,173 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 496 transitions. Word has length 135 [2025-01-09 21:52:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:38,174 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 496 transitions. [2025-01-09 21:52:38,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 21:52:38,174 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 496 transitions. [2025-01-09 21:52:38,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 21:52:38,175 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:38,175 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:38,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-09 21:52:38,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:38,379 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:38,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:38,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1545131315, now seen corresponding path program 2 times [2025-01-09 21:52:38,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:38,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280463981] [2025-01-09 21:52:38,383 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:52:38,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:38,385 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:38,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-09 21:52:38,623 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 139 statements into 2 equivalence classes. [2025-01-09 21:52:38,900 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 21:52:38,900 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 21:52:38,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:52:38,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 21:52:38,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:52:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 21:52:39,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:52:39,224 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 21:52:39,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 21:52:39,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280463981] [2025-01-09 21:52:39,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280463981] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:52:39,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 21:52:39,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-01-09 21:52:39,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134224013] [2025-01-09 21:52:39,224 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 21:52:39,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:52:39,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 21:52:39,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:52:39,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:52:39,226 INFO L87 Difference]: Start difference. First operand 423 states and 496 transitions. Second operand has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 21:52:39,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 21:52:39,635 INFO L93 Difference]: Finished difference Result 435 states and 512 transitions. [2025-01-09 21:52:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-09 21:52:39,636 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 139 [2025-01-09 21:52:39,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 21:52:39,637 INFO L225 Difference]: With dead ends: 435 [2025-01-09 21:52:39,637 INFO L226 Difference]: Without dead ends: 431 [2025-01-09 21:52:39,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-01-09 21:52:39,638 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 7 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 21:52:39,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1360 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 21:52:39,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2025-01-09 21:52:39,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2025-01-09 21:52:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 416 states have (on average 1.1802884615384615) internal successors, (491), 421 states have internal predecessors, (491), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-01-09 21:52:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 506 transitions. [2025-01-09 21:52:39,644 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 506 transitions. Word has length 139 [2025-01-09 21:52:39,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 21:52:39,644 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 506 transitions. [2025-01-09 21:52:39,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 21:52:39,644 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 506 transitions. [2025-01-09 21:52:39,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 21:52:39,645 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 21:52:39,645 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:52:39,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-09 21:52:39,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:39,849 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 21:52:39,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:52:39,849 INFO L85 PathProgramCache]: Analyzing trace with hash 757096435, now seen corresponding path program 3 times [2025-01-09 21:52:39,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 21:52:39,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653062059] [2025-01-09 21:52:39,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:52:39,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:52:39,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:52:39,852 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:52:39,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-09 21:52:40,141 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 145 statements into 7 equivalence classes.