./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.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_SFH_test2-2.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 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:03:14,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:03:14,474 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-01-09 22:03:14,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:03:14,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:03:14,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:03:14,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:03:14,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:03:14,506 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:03:14,506 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:03:14,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:03:14,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:03:14,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:03:14,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:03:14,507 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:03:14,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:03:14,508 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:03:14,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 22:03:14,509 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:03:14,509 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:03:14,509 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:03:14,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:03:14,509 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:03:14,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:03:14,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:03:14,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:03:14,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:03:14,510 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 -> 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 [2025-01-09 22:03:14,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:03:14,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:03:14,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:03:14,737 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:03:14,737 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:03:14,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2025-01-09 22:03:15,923 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0822736e9/1c6489f9195d4c2dadf540cf3c89e7b3/FLAGccd327ebd [2025-01-09 22:03:16,304 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:03:16,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2025-01-09 22:03:16,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0822736e9/1c6489f9195d4c2dadf540cf3c89e7b3/FLAGccd327ebd [2025-01-09 22:03:16,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0822736e9/1c6489f9195d4c2dadf540cf3c89e7b3 [2025-01-09 22:03:16,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:03:16,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:03:16,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:03:16,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:03:16,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:03:16,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:03:16" (1/1) ... [2025-01-09 22:03:16,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf098e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:16, skipping insertion in model container [2025-01-09 22:03:16,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:03:16" (1/1) ... [2025-01-09 22:03:16,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:03:16,596 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 22:03:16,613 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 22:03:16,616 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 22:03:16,618 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 22:03:16,622 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 22:03:16,641 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 22:03:16,642 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 22:03:16,643 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 22:03:16,643 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 22:03:16,644 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 22:03:16,646 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 22:03:16,647 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 22:03:16,647 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 22:03:16,648 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 22:03:16,650 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 22:03:16,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:03:16,674 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 22:03:16,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e63b681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:16, skipping insertion in model container [2025-01-09 22:03:16,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:03:16,675 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-09 22:03:16,676 INFO L158 Benchmark]: Toolchain (without parser) took 318.76ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 91.4MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 22:03:16,676 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:03:16,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.96ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 91.4MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 22:03:16,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.96ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 91.4MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 833]: 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_SFH_test2-2.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 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:03:18,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:03:18,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-01-09 22:03:18,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:03:18,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:03:18,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:03:18,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:03:18,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:03:18,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:03:18,455 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:03:18,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:03:18,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:03:18,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:03:18,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:03:18,456 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:03:18,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:03:18,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 22:03:18,456 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:03:18,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:03:18,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:03:18,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:03:18,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:03:18,458 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:03:18,458 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:03:18,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:03:18,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:03:18,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:03:18,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:03:18,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:03:18,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:03:18,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:03:18,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:03:18,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:03:18,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:03:18,460 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 -> 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 [2025-01-09 22:03:18,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:03:18,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:03:18,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:03:18,734 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:03:18,735 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:03:18,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2025-01-09 22:03:19,916 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/51101c2fe/26fee9ea456b425382a56fc2aad90d2b/FLAG2ee9ef141 [2025-01-09 22:03:20,217 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:03:20,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2025-01-09 22:03:20,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/51101c2fe/26fee9ea456b425382a56fc2aad90d2b/FLAG2ee9ef141 [2025-01-09 22:03:20,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/51101c2fe/26fee9ea456b425382a56fc2aad90d2b [2025-01-09 22:03:20,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:03:20,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:03:20,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:03:20,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:03:20,498 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:03:20,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:03:20" (1/1) ... [2025-01-09 22:03:20,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788a9c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:20, skipping insertion in model container [2025-01-09 22:03:20,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:03:20" (1/1) ... [2025-01-09 22:03:20,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:03:20,859 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:03:20,878 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 22:03:20,881 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 22:03:20,886 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 22:03:20,895 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 22:03:20,936 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 22:03:20,936 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 22:03:20,942 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 22:03:20,943 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 22:03:20,946 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 22:03:20,948 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 22:03:20,949 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 22:03:20,950 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 22:03:20,950 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 22:03:20,953 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 22:03:20,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:03:20,970 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-09 22:03:20,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:03:21,016 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 22:03:21,037 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 22:03:21,038 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 22:03:21,043 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 22:03:21,048 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 22:03:21,074 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 22:03:21,074 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 22:03:21,075 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 22:03:21,078 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 22:03:21,079 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 22:03:21,080 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 22:03:21,081 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 22:03:21,081 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 22:03:21,083 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 22:03:21,084 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 22:03:21,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:03:21,096 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 22:03:21,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:03:21,192 INFO L204 MainTranslator]: Completed translation [2025-01-09 22:03:21,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21 WrapperNode [2025-01-09 22:03:21,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:03:21,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 22:03:21,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 22:03:21,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 22:03:21,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,274 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1018 [2025-01-09 22:03:21,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 22:03:21,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 22:03:21,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 22:03:21,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 22:03:21,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,311 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,369 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 34, 220]. 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, 4, 50]. [2025-01-09 22:03:21,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 22:03:21,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 22:03:21,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 22:03:21,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 22:03:21,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (1/1) ... [2025-01-09 22:03:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:03:21,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:21,457 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 22:03:21,459 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 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-09 22:03:21,476 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 22:03:21,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 22:03:21,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 22:03:21,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 22:03:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 22:03:21,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 22:03:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 22:03:21,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 22:03:21,636 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 22:03:21,638 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 22:03:28,004 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-01-09 22:03:28,004 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 22:03:28,016 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 22:03:28,017 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2025-01-09 22:03:28,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:03:28 BoogieIcfgContainer [2025-01-09 22:03:28,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 22:03:28,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 22:03:28,019 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 22:03:28,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 22:03:28,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:03:20" (1/3) ... [2025-01-09 22:03:28,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4935fbd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:03:28, skipping insertion in model container [2025-01-09 22:03:28,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:03:21" (2/3) ... [2025-01-09 22:03:28,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4935fbd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:03:28, skipping insertion in model container [2025-01-09 22:03:28,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:03:28" (3/3) ... [2025-01-09 22:03:28,024 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test2-2.i [2025-01-09 22:03:28,033 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 22:03:28,035 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test2-2.i that has 6 procedures, 222 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-01-09 22:03:28,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 22:03:28,073 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;@1e94536c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 22:03:28,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 22:03:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 207 states have internal predecessors, (326), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-01-09 22:03:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-09 22:03:28,084 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:28,084 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:28,085 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:28,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:28,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1865268441, now seen corresponding path program 1 times [2025-01-09 22:03:28,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:28,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344474371] [2025-01-09 22:03:28,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:28,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:28,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:28,097 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 22:03:28,099 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 22:03:28,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-09 22:03:28,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-09 22:03:28,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:28,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:28,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 22:03:28,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:28,265 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 22:03:28,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:28,265 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:28,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344474371] [2025-01-09 22:03:28,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344474371] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:28,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:28,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 22:03:28,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825813624] [2025-01-09 22:03:28,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:28,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 22:03:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:28,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 22:03:28,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 22:03:28,300 INFO L87 Difference]: Start difference. First operand has 214 states, 198 states have (on average 1.6464646464646464) internal successors, (326), 207 states have internal predecessors, (326), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 22:03:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:28,325 INFO L93 Difference]: Finished difference Result 212 states and 279 transitions. [2025-01-09 22:03:28,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 22:03:28,326 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 11 [2025-01-09 22:03:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:28,331 INFO L225 Difference]: With dead ends: 212 [2025-01-09 22:03:28,331 INFO L226 Difference]: Without dead ends: 210 [2025-01-09 22:03:28,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 22:03:28,334 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:03:28,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:03:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-01-09 22:03:28,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2025-01-09 22:03:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 196 states have (on average 1.3214285714285714) internal successors, (259), 203 states have internal predecessors, (259), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 22:03:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 277 transitions. [2025-01-09 22:03:28,366 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 277 transitions. Word has length 11 [2025-01-09 22:03:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:28,366 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 277 transitions. [2025-01-09 22:03:28,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 22:03:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 277 transitions. [2025-01-09 22:03:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-09 22:03:28,367 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:28,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:28,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 22:03:28,567 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 22:03:28,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:28,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:28,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1411203940, now seen corresponding path program 1 times [2025-01-09 22:03:28,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:28,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272392929] [2025-01-09 22:03:28,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:28,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:28,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:28,572 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 22:03:28,573 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 22:03:28,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 22:03:28,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 22:03:28,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:28,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:28,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 22:03:28,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:28,721 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:03:28,722 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:03:28,722 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:03:28,731 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 22:03:28,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 22:03:28,799 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 22:03:28,812 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 22:03:28,813 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:28,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:28,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272392929] [2025-01-09 22:03:28,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272392929] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:28,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:28,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:03:28,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130885855] [2025-01-09 22:03:28,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:28,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:03:28,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:28,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:03:28,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:03:28,815 INFO L87 Difference]: Start difference. First operand 210 states and 277 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 22:03:29,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:29,287 INFO L93 Difference]: Finished difference Result 403 states and 538 transitions. [2025-01-09 22:03:29,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:03:29,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2025-01-09 22:03:29,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:29,289 INFO L225 Difference]: With dead ends: 403 [2025-01-09 22:03:29,289 INFO L226 Difference]: Without dead ends: 403 [2025-01-09 22:03:29,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:03:29,290 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 241 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 22:03:29,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 763 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 22:03:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2025-01-09 22:03:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 212. [2025-01-09 22:03:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 198 states have (on average 1.3181818181818181) internal successors, (261), 205 states have internal predecessors, (261), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 22:03:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 279 transitions. [2025-01-09 22:03:29,312 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 279 transitions. Word has length 12 [2025-01-09 22:03:29,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:29,312 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 279 transitions. [2025-01-09 22:03:29,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 22:03:29,312 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 279 transitions. [2025-01-09 22:03:29,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-01-09 22:03:29,314 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:29,314 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:29,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 22:03:29,517 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 22:03:29,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:29,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:29,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1883170955, now seen corresponding path program 1 times [2025-01-09 22:03:29,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:29,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109238386] [2025-01-09 22:03:29,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:29,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:29,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:29,521 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 22:03:29,523 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 22:03:29,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-09 22:03:29,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-09 22:03:29,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:29,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:29,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:03:29,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:30,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:03:30,061 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:30,061 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:30,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109238386] [2025-01-09 22:03:30,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109238386] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:30,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:30,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:03:30,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707048551] [2025-01-09 22:03:30,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:30,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:03:30,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:30,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:03:30,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:03:30,064 INFO L87 Difference]: Start difference. First operand 212 states and 279 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 22:03:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:30,523 INFO L93 Difference]: Finished difference Result 338 states and 450 transitions. [2025-01-09 22:03:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:03:30,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2025-01-09 22:03:30,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:30,525 INFO L225 Difference]: With dead ends: 338 [2025-01-09 22:03:30,525 INFO L226 Difference]: Without dead ends: 338 [2025-01-09 22:03:30,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 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 22:03:30,526 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 120 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 22:03:30,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 572 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 22:03:30,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2025-01-09 22:03:30,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 308. [2025-01-09 22:03:30,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 289 states have (on average 1.3252595155709344) internal successors, (383), 301 states have internal predecessors, (383), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 22:03:30,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 411 transitions. [2025-01-09 22:03:30,537 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 411 transitions. Word has length 68 [2025-01-09 22:03:30,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:30,537 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 411 transitions. [2025-01-09 22:03:30,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 22:03:30,537 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 411 transitions. [2025-01-09 22:03:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-01-09 22:03:30,538 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:30,539 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] [2025-01-09 22:03:30,548 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 22:03:30,743 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 22:03:30,743 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:30,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:30,744 INFO L85 PathProgramCache]: Analyzing trace with hash 878460883, now seen corresponding path program 1 times [2025-01-09 22:03:30,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:30,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172676160] [2025-01-09 22:03:30,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:30,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:30,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:30,747 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 22:03:30,748 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 22:03:30,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-09 22:03:31,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-09 22:03:31,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:31,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:31,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:03:31,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:31,038 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 22:03:31,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:31,038 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:31,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172676160] [2025-01-09 22:03:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172676160] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:31,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:31,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:03:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062463600] [2025-01-09 22:03:31,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:31,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:03:31,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:31,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:03:31,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:03:31,040 INFO L87 Difference]: Start difference. First operand 308 states and 411 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 22:03:31,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:31,117 INFO L93 Difference]: Finished difference Result 348 states and 451 transitions. [2025-01-09 22:03:31,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:03:31,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 83 [2025-01-09 22:03:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:31,119 INFO L225 Difference]: With dead ends: 348 [2025-01-09 22:03:31,119 INFO L226 Difference]: Without dead ends: 348 [2025-01-09 22:03:31,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 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 22:03:31,120 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 9 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 499 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 22:03:31,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 499 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:03:31,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-01-09 22:03:31,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2025-01-09 22:03:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 329 states have (on average 1.2857142857142858) internal successors, (423), 341 states have internal predecessors, (423), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 22:03:31,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 451 transitions. [2025-01-09 22:03:31,129 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 451 transitions. Word has length 83 [2025-01-09 22:03:31,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:31,129 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 451 transitions. [2025-01-09 22:03:31,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 22:03:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 451 transitions. [2025-01-09 22:03:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-01-09 22:03:31,130 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:31,131 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] [2025-01-09 22:03:31,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 22:03:31,335 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 22:03:31,335 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:31,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:31,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1070671657, now seen corresponding path program 1 times [2025-01-09 22:03:31,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:31,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524651369] [2025-01-09 22:03:31,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:31,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:31,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:31,340 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 22:03:31,341 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 22:03:31,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-09 22:03:31,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-09 22:03:31,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:31,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:31,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:03:31,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:31,793 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 22:03:31,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:31,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:31,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524651369] [2025-01-09 22:03:31,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524651369] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:31,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:31,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:03:31,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388003761] [2025-01-09 22:03:31,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:31,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:03:31,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:31,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:03:31,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:03:31,795 INFO L87 Difference]: Start difference. First operand 348 states and 451 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (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 22:03:36,045 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 22:03:40,053 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 22:03:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:41,138 INFO L93 Difference]: Finished difference Result 360 states and 457 transitions. [2025-01-09 22:03:41,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:03:41,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (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 83 [2025-01-09 22:03:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:41,139 INFO L225 Difference]: With dead ends: 360 [2025-01-09 22:03:41,139 INFO L226 Difference]: Without dead ends: 360 [2025-01-09 22:03:41,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:03:41,140 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 455 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2025-01-09 22:03:41,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 465 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2025-01-09 22:03:41,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-01-09 22:03:41,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 292. [2025-01-09 22:03:41,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 278 states have (on average 1.2589928057553956) internal successors, (350), 285 states have internal predecessors, (350), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 22:03:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 368 transitions. [2025-01-09 22:03:41,146 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 368 transitions. Word has length 83 [2025-01-09 22:03:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:41,147 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 368 transitions. [2025-01-09 22:03:41,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (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 22:03:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 368 transitions. [2025-01-09 22:03:41,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 22:03:41,149 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:41,149 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:41,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 22:03:41,353 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 22:03:41,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:41,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1799197009, now seen corresponding path program 1 times [2025-01-09 22:03:41,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:41,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129774029] [2025-01-09 22:03:41,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:41,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:41,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:41,357 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 22:03:41,358 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 22:03:41,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 22:03:41,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 22:03:41,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:41,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:41,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:03:41,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 22:03:41,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:41,708 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129774029] [2025-01-09 22:03:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129774029] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:41,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:41,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:03:41,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923960867] [2025-01-09 22:03:41,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:41,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:03:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:41,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:03:41,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:03:41,710 INFO L87 Difference]: Start difference. First operand 292 states and 368 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 22:03:41,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:41,793 INFO L93 Difference]: Finished difference Result 258 states and 312 transitions. [2025-01-09 22:03:41,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:03:41,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 92 [2025-01-09 22:03:41,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:41,794 INFO L225 Difference]: With dead ends: 258 [2025-01-09 22:03:41,794 INFO L226 Difference]: Without dead ends: 258 [2025-01-09 22:03:41,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 22:03:41,795 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 32 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 715 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 22:03:41,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 715 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:03:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2025-01-09 22:03:41,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2025-01-09 22:03:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 244 states have (on average 1.2049180327868851) internal successors, (294), 251 states have internal predecessors, (294), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 22:03:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 312 transitions. [2025-01-09 22:03:41,802 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 312 transitions. Word has length 92 [2025-01-09 22:03:41,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:41,802 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 312 transitions. [2025-01-09 22:03:41,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 22:03:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 312 transitions. [2025-01-09 22:03:41,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 22:03:41,804 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:41,804 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:41,814 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 22:03:42,004 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 22:03:42,004 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:42,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash 68322621, now seen corresponding path program 1 times [2025-01-09 22:03:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:42,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951975874] [2025-01-09 22:03:42,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:42,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:42,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:42,010 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 22:03:42,011 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 22:03:42,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 22:03:42,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 22:03:42,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:42,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:42,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:03:42,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-09 22:03:42,381 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:42,381 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:42,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951975874] [2025-01-09 22:03:42,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951975874] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:42,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:42,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:03:42,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121472359] [2025-01-09 22:03:42,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:42,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:03:42,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:42,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:03:42,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:03:42,382 INFO L87 Difference]: Start difference. First operand 258 states and 312 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 22:03:46,818 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 22:03:50,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:03:52,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:03:54,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:03:55,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:03:56,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:56,028 INFO L93 Difference]: Finished difference Result 260 states and 314 transitions. [2025-01-09 22:03:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:03:56,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 92 [2025-01-09 22:03:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:56,029 INFO L225 Difference]: With dead ends: 260 [2025-01-09 22:03:56,029 INFO L226 Difference]: Without dead ends: 260 [2025-01-09 22:03:56,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 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 22:03:56,030 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 223 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2025-01-09 22:03:56,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 481 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2025-01-09 22:03:56,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2025-01-09 22:03:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 259. [2025-01-09 22:03:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 245 states have (on average 1.2040816326530612) internal successors, (295), 252 states have internal predecessors, (295), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 22:03:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 313 transitions. [2025-01-09 22:03:56,035 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 313 transitions. Word has length 92 [2025-01-09 22:03:56,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:56,035 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 313 transitions. [2025-01-09 22:03:56,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 22:03:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 313 transitions. [2025-01-09 22:03:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 22:03:56,036 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:56,036 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:56,048 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 22:03:56,241 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 22:03:56,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:56,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:56,242 INFO L85 PathProgramCache]: Analyzing trace with hash 68382203, now seen corresponding path program 1 times [2025-01-09 22:03:56,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:56,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599241973] [2025-01-09 22:03:56,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:56,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:56,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:56,244 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 22:03:56,245 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 22:03:56,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 22:03:56,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 22:03:56,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:56,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:56,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:03:56,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 22:03:56,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:56,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:56,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599241973] [2025-01-09 22:03:56,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599241973] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:56,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:56,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:03:56,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137429997] [2025-01-09 22:03:56,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:56,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:03:56,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:56,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:03:56,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:03:56,620 INFO L87 Difference]: Start difference. First operand 259 states and 313 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:03:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:56,656 INFO L93 Difference]: Finished difference Result 262 states and 317 transitions. [2025-01-09 22:03:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:03:56,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2025-01-09 22:03:56,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:56,659 INFO L225 Difference]: With dead ends: 262 [2025-01-09 22:03:56,659 INFO L226 Difference]: Without dead ends: 262 [2025-01-09 22:03:56,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 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 22:03:56,659 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 0 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 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 22:03:56,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:03:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2025-01-09 22:03:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2025-01-09 22:03:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 247 states have (on average 1.2064777327935223) internal successors, (298), 255 states have internal predecessors, (298), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-09 22:03:56,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 317 transitions. [2025-01-09 22:03:56,668 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 317 transitions. Word has length 92 [2025-01-09 22:03:56,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:56,669 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 317 transitions. [2025-01-09 22:03:56,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:03:56,669 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 317 transitions. [2025-01-09 22:03:56,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-09 22:03:56,670 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:56,670 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:56,687 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 22:03:56,871 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 22:03:56,871 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:56,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:56,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1266603193, now seen corresponding path program 1 times [2025-01-09 22:03:56,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:56,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337092248] [2025-01-09 22:03:56,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:56,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:56,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:56,874 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 22:03:56,875 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 22:03:57,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 22:03:57,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 22:03:57,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:57,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:57,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:03:57,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 22:03:57,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:03:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 22:03:57,349 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337092248] [2025-01-09 22:03:57,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337092248] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:03:57,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:03:57,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-09 22:03:57,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653174419] [2025-01-09 22:03:57,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:03:57,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 22:03:57,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:57,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 22:03:57,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 22:03:57,350 INFO L87 Difference]: Start difference. First operand 262 states and 317 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 22:03:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:57,491 INFO L93 Difference]: Finished difference Result 273 states and 334 transitions. [2025-01-09 22:03:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 22:03:57,492 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 94 [2025-01-09 22:03:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:57,493 INFO L225 Difference]: With dead ends: 273 [2025-01-09 22:03:57,493 INFO L226 Difference]: Without dead ends: 273 [2025-01-09 22:03:57,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 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 22:03:57,494 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 4 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:03:57,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1036 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:03:57,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2025-01-09 22:03:57,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2025-01-09 22:03:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 255 states have (on average 1.223529411764706) internal successors, (312), 263 states have internal predecessors, (312), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2025-01-09 22:03:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 332 transitions. [2025-01-09 22:03:57,501 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 332 transitions. Word has length 94 [2025-01-09 22:03:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:57,501 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 332 transitions. [2025-01-09 22:03:57,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 22:03:57,502 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 332 transitions. [2025-01-09 22:03:57,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-09 22:03:57,516 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:57,516 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] [2025-01-09 22:03:57,529 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 22:03:57,716 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 22:03:57,716 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:57,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:57,717 INFO L85 PathProgramCache]: Analyzing trace with hash -949334565, now seen corresponding path program 2 times [2025-01-09 22:03:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:57,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526970541] [2025-01-09 22:03:57,718 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 22:03:57,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:57,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:57,720 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 22:03:57,721 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 22:03:57,966 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 98 statements into 2 equivalence classes. [2025-01-09 22:03:57,976 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 98 statements. [2025-01-09 22:03:57,977 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 22:03:57,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:57,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:03:57,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:57,990 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:03:57,991 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:03:57,991 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:03:57,993 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 22:03:58,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 22:03:58,043 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 22:03:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-01-09 22:03:58,056 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:58,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526970541] [2025-01-09 22:03:58,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526970541] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:58,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:58,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:03:58,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423766059] [2025-01-09 22:03:58,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:58,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:03:58,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:58,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:03:58,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:03:58,058 INFO L87 Difference]: Start difference. First operand 271 states and 332 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 22:03:58,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:58,488 INFO L93 Difference]: Finished difference Result 382 states and 485 transitions. [2025-01-09 22:03:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:03:58,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 98 [2025-01-09 22:03:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:58,491 INFO L225 Difference]: With dead ends: 382 [2025-01-09 22:03:58,491 INFO L226 Difference]: Without dead ends: 382 [2025-01-09 22:03:58,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:03:58,492 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 185 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 22:03:58,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 770 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 22:03:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-01-09 22:03:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 273. [2025-01-09 22:03:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 257 states have (on average 1.2217898832684826) internal successors, (314), 265 states have internal predecessors, (314), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2025-01-09 22:03:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 334 transitions. [2025-01-09 22:03:58,508 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 334 transitions. Word has length 98 [2025-01-09 22:03:58,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:58,508 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 334 transitions. [2025-01-09 22:03:58,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 22:03:58,508 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 334 transitions. [2025-01-09 22:03:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 22:03:58,509 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:58,509 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:58,518 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 22:03:58,709 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 22:03:58,709 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:58,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1235792568, now seen corresponding path program 1 times [2025-01-09 22:03:58,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:58,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378652447] [2025-01-09 22:03:58,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:58,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:58,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:58,713 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 22:03:58,714 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 22:03:58,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 22:03:59,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 22:03:59,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:59,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:59,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:03:59,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-09 22:03:59,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:59,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:59,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378652447] [2025-01-09 22:03:59,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378652447] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:59,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:59,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:03:59,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503894810] [2025-01-09 22:03:59,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:59,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:03:59,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:59,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:03:59,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:03:59,094 INFO L87 Difference]: Start difference. First operand 273 states and 334 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:03:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:59,208 INFO L93 Difference]: Finished difference Result 293 states and 354 transitions. [2025-01-09 22:03:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:03:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 132 [2025-01-09 22:03:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:59,210 INFO L225 Difference]: With dead ends: 293 [2025-01-09 22:03:59,210 INFO L226 Difference]: Without dead ends: 293 [2025-01-09 22:03:59,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 22:03:59,210 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 8 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 473 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 22:03:59,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 473 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:03:59,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2025-01-09 22:03:59,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2025-01-09 22:03:59,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 277 states have (on average 1.2057761732851986) internal successors, (334), 285 states have internal predecessors, (334), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2025-01-09 22:03:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 354 transitions. [2025-01-09 22:03:59,224 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 354 transitions. Word has length 132 [2025-01-09 22:03:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:59,225 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 354 transitions. [2025-01-09 22:03:59,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:03:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 354 transitions. [2025-01-09 22:03:59,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 22:03:59,225 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:59,226 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:59,239 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 22:03:59,426 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 22:03:59,426 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:03:59,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:03:59,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1895801924, now seen corresponding path program 1 times [2025-01-09 22:03:59,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:03:59,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48704390] [2025-01-09 22:03:59,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:03:59,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:03:59,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:03:59,429 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 22:03:59,431 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 22:03:59,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 22:03:59,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 22:03:59,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:03:59,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:03:59,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:03:59,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:03:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-09 22:03:59,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:03:59,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:03:59,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48704390] [2025-01-09 22:03:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48704390] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:03:59,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:03:59,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:03:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490998131] [2025-01-09 22:03:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:03:59,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:03:59,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:03:59,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:03:59,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:03:59,845 INFO L87 Difference]: Start difference. First operand 293 states and 354 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:03:59,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:03:59,942 INFO L93 Difference]: Finished difference Result 276 states and 326 transitions. [2025-01-09 22:03:59,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:03:59,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 132 [2025-01-09 22:03:59,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:03:59,954 INFO L225 Difference]: With dead ends: 276 [2025-01-09 22:03:59,954 INFO L226 Difference]: Without dead ends: 276 [2025-01-09 22:03:59,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 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 22:03:59,955 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 32 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 682 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 22:03:59,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 682 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:03:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2025-01-09 22:03:59,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2025-01-09 22:03:59,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 260 states have (on average 1.176923076923077) internal successors, (306), 268 states have internal predecessors, (306), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2025-01-09 22:03:59,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 326 transitions. [2025-01-09 22:03:59,959 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 326 transitions. Word has length 132 [2025-01-09 22:03:59,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:03:59,960 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 326 transitions. [2025-01-09 22:03:59,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:03:59,960 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 326 transitions. [2025-01-09 22:03:59,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 22:03:59,961 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:03:59,961 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:03:59,973 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 22:04:00,165 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 22:04:00,165 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:00,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash 128134254, now seen corresponding path program 1 times [2025-01-09 22:04:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:00,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881590406] [2025-01-09 22:04:00,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:00,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:00,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:00,169 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 22:04:00,170 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 22:04:00,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 22:04:00,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 22:04:00,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:00,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:00,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 22:04:00,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:00,642 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 22:04:00,642 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:04:00,779 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 22:04:00,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:00,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881590406] [2025-01-09 22:04:00,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881590406] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:04:00,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:04:00,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-09 22:04:00,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575969511] [2025-01-09 22:04:00,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:04:00,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 22:04:00,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:00,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 22:04:00,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-01-09 22:04:00,781 INFO L87 Difference]: Start difference. First operand 276 states and 326 transitions. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:04:01,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:01,037 INFO L93 Difference]: Finished difference Result 284 states and 336 transitions. [2025-01-09 22:04:01,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 22:04:01,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 132 [2025-01-09 22:04:01,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:01,042 INFO L225 Difference]: With dead ends: 284 [2025-01-09 22:04:01,042 INFO L226 Difference]: Without dead ends: 282 [2025-01-09 22:04:01,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 254 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 22:04:01,043 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 6 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:01,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1488 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 22:04:01,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2025-01-09 22:04:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 280. [2025-01-09 22:04:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 264 states have (on average 1.1818181818181819) internal successors, (312), 272 states have internal predecessors, (312), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-09 22:04:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 331 transitions. [2025-01-09 22:04:01,048 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 331 transitions. Word has length 132 [2025-01-09 22:04:01,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:01,048 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 331 transitions. [2025-01-09 22:04:01,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:04:01,048 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 331 transitions. [2025-01-09 22:04:01,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 22:04:01,049 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:01,049 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:01,063 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 22:04:01,249 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 22:04:01,250 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:01,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:01,250 INFO L85 PathProgramCache]: Analyzing trace with hash -386866002, now seen corresponding path program 2 times [2025-01-09 22:04:01,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:01,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622807623] [2025-01-09 22:04:01,251 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 22:04:01,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:01,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:01,253 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 22:04:01,254 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 22:04:01,540 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 136 statements into 2 equivalence classes. [2025-01-09 22:04:01,773 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 22:04:01,773 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 22:04:01,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:01,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 22:04:01,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:01,800 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:01,801 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:01,802 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 35 treesize of output 29 [2025-01-09 22:04:07,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 22:04:07,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 200 treesize of output 88 [2025-01-09 22:04:07,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 22:04:07,559 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 110 treesize of output 66 [2025-01-09 22:04:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-01-09 22:04:07,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:04:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-01-09 22:04:12,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:12,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622807623] [2025-01-09 22:04:12,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622807623] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:04:12,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:04:12,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2025-01-09 22:04:12,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163956108] [2025-01-09 22:04:12,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:04:12,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 22:04:12,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:12,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 22:04:12,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=114, Unknown=2, NotChecked=0, Total=156 [2025-01-09 22:04:12,336 INFO L87 Difference]: Start difference. First operand 280 states and 331 transitions. Second operand has 13 states, 13 states have (on average 14.384615384615385) internal successors, (187), 13 states have internal predecessors, (187), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:04:16,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:04:20,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:04:29,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:04:33,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:04:37,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:04:43,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:04:47,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:04:55,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-09 22:05:00,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]