./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:34:34,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:34:34,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:34:34,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:34:34,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:34:34,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:34:34,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:34:34,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:34:34,718 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:34:34,718 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:34:34,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:34:34,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:34:34,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:34:34,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:34:34,720 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:34:34,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:34:34,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:34:34,720 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:34:34,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:34:34,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:34:34,721 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:34:34,722 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:34:34,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:34:34,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:34:34,722 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/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 -> bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c [2025-03-17 11:34:34,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:34:34,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:34:34,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:34:34,958 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:34:34,959 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:34:34,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2025-03-17 11:34:36,087 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb0ace09e/b2a496abb9b54e8d8adb6f01ec360768/FLAG3d3e449a6 [2025-03-17 11:34:36,425 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:34:36,426 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2025-03-17 11:34:36,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb0ace09e/b2a496abb9b54e8d8adb6f01ec360768/FLAG3d3e449a6 [2025-03-17 11:34:36,455 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb0ace09e/b2a496abb9b54e8d8adb6f01ec360768 [2025-03-17 11:34:36,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:34:36,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:34:36,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:36,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:34:36,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:34:36,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:36" (1/1) ... [2025-03-17 11:34:36,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580c9718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:36, skipping insertion in model container [2025-03-17 11:34:36,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:36" (1/1) ... [2025-03-17 11:34:36,492 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:34:36,691 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,721 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,729 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,735 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,750 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,751 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,753 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,753 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,754 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:36,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:36,770 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) [2025-03-17 11:34:36,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25b8cd7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:36, skipping insertion in model container [2025-03-17 11:34:36,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:36,771 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:34:36,774 INFO L158 Benchmark]: Toolchain (without parser) took 314.13ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 103.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:34:36,774 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:34:36,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.09ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 103.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:34:36,775 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.09ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 103.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:34:38,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:34:38,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:34:38,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:34:38,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:34:38,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:34:38,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:34:38,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:34:38,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:34:38,555 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:34:38,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:34:38,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:34:38,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:34:38,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:34:38,556 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:34:38,557 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:34:38,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:34:38,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:34:38,557 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/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 -> bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c [2025-03-17 11:34:38,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:34:38,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:34:38,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:34:38,804 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:34:38,804 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:34:38,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2025-03-17 11:34:40,010 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295c13e9f/d3676b75735d4fcc9b65bb6150279ee0/FLAG16ff0dd2c [2025-03-17 11:34:40,294 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:34:40,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2025-03-17 11:34:40,311 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295c13e9f/d3676b75735d4fcc9b65bb6150279ee0/FLAG16ff0dd2c [2025-03-17 11:34:40,326 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295c13e9f/d3676b75735d4fcc9b65bb6150279ee0 [2025-03-17 11:34:40,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:34:40,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:34:40,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:40,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:34:40,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:34:40,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:40,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6f5d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40, skipping insertion in model container [2025-03-17 11:34:40,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:40,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:34:40,669 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,699 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,703 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,706 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,715 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,730 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,732 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,734 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,736 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,737 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,737 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,742 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:40,764 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:34:40,771 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:34:40,799 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,813 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,815 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,819 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,826 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,835 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,839 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,845 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,846 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,852 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:40,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:40,860 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:34:40,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:40,945 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:34:40,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40 WrapperNode [2025-03-17 11:34:40,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:40,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:34:40,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:34:40,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:34:40,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:40,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,009 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 759 [2025-03-17 11:34:41,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:34:41,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:34:41,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:34:41,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:34:41,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,075 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2025-03-17 11:34:41,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,132 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:34:41,155 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:34:41,155 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:34:41,156 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:34:41,157 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (1/1) ... [2025-03-17 11:34:41,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:34:41,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:41,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:34:41,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:34:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 11:34:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 11:34:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 11:34:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:34:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:34:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:34:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:34:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:34:41,366 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:34:41,367 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:34:48,018 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2025-03-17 11:34:48,018 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:34:48,030 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:34:48,031 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:34:48,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:34:48 BoogieIcfgContainer [2025-03-17 11:34:48,031 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:34:48,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:34:48,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:34:48,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:34:48,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:34:40" (1/3) ... [2025-03-17 11:34:48,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec496f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:48, skipping insertion in model container [2025-03-17 11:34:48,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:40" (2/3) ... [2025-03-17 11:34:48,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec496f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:48, skipping insertion in model container [2025-03-17 11:34:48,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:34:48" (3/3) ... [2025-03-17 11:34:48,039 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-2.i [2025-03-17 11:34:48,048 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:34:48,049 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test1-2.i that has 4 procedures, 158 locations, 1 initial locations, 24 loop locations, and 2 error locations. [2025-03-17 11:34:48,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:34:48,086 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;@4a99935b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:34:48,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:34:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 136 states have (on average 1.661764705882353) internal successors, (226), 148 states have internal predecessors, (226), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:34:48,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 11:34:48,094 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:48,095 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:48,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:48,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:48,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1507728134, now seen corresponding path program 1 times [2025-03-17 11:34:48,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:48,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014573989] [2025-03-17 11:34:48,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:48,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:48,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:48,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:48,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 11:34:48,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 11:34:48,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 11:34:48,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:48,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:48,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:48,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:34:48,303 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:48,303 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:48,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014573989] [2025-03-17 11:34:48,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014573989] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:48,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:48,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:34:48,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624516007] [2025-03-17 11:34:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:48,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:34:48,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:48,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:34:48,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:48,324 INFO L87 Difference]: Start difference. First operand has 154 states, 136 states have (on average 1.661764705882353) internal successors, (226), 148 states have internal predecessors, (226), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:48,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:48,816 INFO L93 Difference]: Finished difference Result 243 states and 344 transitions. [2025-03-17 11:34:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:34:48,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 11:34:48,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:48,830 INFO L225 Difference]: With dead ends: 243 [2025-03-17 11:34:48,830 INFO L226 Difference]: Without dead ends: 241 [2025-03-17 11:34:48,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:48,834 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 108 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:48,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 386 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 11:34:48,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-17 11:34:48,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 212. [2025-03-17 11:34:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 185 states have (on average 1.3891891891891892) internal successors, (257), 206 states have internal predecessors, (257), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 5 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 11:34:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 303 transitions. [2025-03-17 11:34:48,884 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 303 transitions. Word has length 7 [2025-03-17 11:34:48,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:48,884 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 303 transitions. [2025-03-17 11:34:48,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 303 transitions. [2025-03-17 11:34:48,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 11:34:48,885 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:48,885 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:48,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:49,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:49,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:49,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:49,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1507757925, now seen corresponding path program 1 times [2025-03-17 11:34:49,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:49,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426307564] [2025-03-17 11:34:49,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:49,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:49,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:49,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:49,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 11:34:49,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 11:34:49,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 11:34:49,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:49,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:49,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 11:34:49,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:34:49,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:49,197 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:49,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426307564] [2025-03-17 11:34:49,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426307564] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:49,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:49,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 11:34:49,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260001088] [2025-03-17 11:34:49,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:49,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:34:49,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:49,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:34:49,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:49,199 INFO L87 Difference]: Start difference. First operand 212 states and 303 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:53,275 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 [] [2025-03-17 11:34:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:53,597 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2025-03-17 11:34:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:34:53,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 11:34:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:53,605 INFO L225 Difference]: With dead ends: 239 [2025-03-17 11:34:53,605 INFO L226 Difference]: Without dead ends: 238 [2025-03-17 11:34:53,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:53,606 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 53 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:53,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 397 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2025-03-17 11:34:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2025-03-17 11:34:53,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 214. [2025-03-17 11:34:53,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 187 states have (on average 1.3850267379679144) internal successors, (259), 208 states have internal predecessors, (259), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 5 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 11:34:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 305 transitions. [2025-03-17 11:34:53,620 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 305 transitions. Word has length 7 [2025-03-17 11:34:53,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:53,620 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 305 transitions. [2025-03-17 11:34:53,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:53,621 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 305 transitions. [2025-03-17 11:34:53,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 11:34:53,622 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:53,622 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:53,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 11:34:53,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:53,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:53,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:53,823 INFO L85 PathProgramCache]: Analyzing trace with hash 853508784, now seen corresponding path program 1 times [2025-03-17 11:34:53,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:53,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945947083] [2025-03-17 11:34:53,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:53,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:53,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:53,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:53,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 11:34:53,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 11:34:53,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 11:34:53,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:53,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:53,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:34:53,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:34:53,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:53,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:53,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945947083] [2025-03-17 11:34:53,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945947083] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:53,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:53,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:34:53,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760017694] [2025-03-17 11:34:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:53,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:53,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:53,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:53,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:53,974 INFO L87 Difference]: Start difference. First operand 214 states and 305 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-17 11:34:58,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:35:00,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:35:00,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:00,522 INFO L93 Difference]: Finished difference Result 222 states and 300 transitions. [2025-03-17 11:35:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:00,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2025-03-17 11:35:00,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:00,525 INFO L225 Difference]: With dead ends: 222 [2025-03-17 11:35:00,525 INFO L226 Difference]: Without dead ends: 218 [2025-03-17 11:35:00,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:35:00,525 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 91 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:00,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 605 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2025-03-17 11:35:00,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2025-03-17 11:35:00,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 189. [2025-03-17 11:35:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 172 states have (on average 1.3488372093023255) internal successors, (232), 183 states have internal predecessors, (232), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:35:00,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 258 transitions. [2025-03-17 11:35:00,532 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 258 transitions. Word has length 9 [2025-03-17 11:35:00,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:00,532 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 258 transitions. [2025-03-17 11:35:00,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-17 11:35:00,532 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 258 transitions. [2025-03-17 11:35:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 11:35:00,534 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:00,534 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 11:35:00,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 11:35:00,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:00,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:00,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1564064280, now seen corresponding path program 1 times [2025-03-17 11:35:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535575887] [2025-03-17 11:35:00,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:00,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:00,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:00,737 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:00,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:35:00,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 11:35:01,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 11:35:01,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:01,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:01,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:01,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:35:01,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:01,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:01,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535575887] [2025-03-17 11:35:01,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535575887] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:01,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:01,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:01,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400379853] [2025-03-17 11:35:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:01,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:01,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:01,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:01,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:01,150 INFO L87 Difference]: Start difference. First operand 189 states and 258 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-17 11:35:01,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:01,292 INFO L93 Difference]: Finished difference Result 209 states and 268 transitions. [2025-03-17 11:35:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:35:01,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 75 [2025-03-17 11:35:01,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:01,294 INFO L225 Difference]: With dead ends: 209 [2025-03-17 11:35:01,294 INFO L226 Difference]: Without dead ends: 209 [2025-03-17 11:35:01,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:35:01,294 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 23 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:01,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 516 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:35:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-03-17 11:35:01,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2025-03-17 11:35:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 190 states have (on average 1.263157894736842) internal successors, (240), 201 states have internal predecessors, (240), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:35:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 266 transitions. [2025-03-17 11:35:01,306 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 266 transitions. Word has length 75 [2025-03-17 11:35:01,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:01,307 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 266 transitions. [2025-03-17 11:35:01,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-17 11:35:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 266 transitions. [2025-03-17 11:35:01,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 11:35:01,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:01,309 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 11:35:01,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 11:35:01,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:01,510 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:01,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:01,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1126054777, now seen corresponding path program 1 times [2025-03-17 11:35:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:01,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953800158] [2025-03-17 11:35:01,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:01,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:01,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:01,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:01,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 11:35:01,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 11:35:01,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 11:35:01,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:01,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:01,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:35:01,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:02,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:35:02,118 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:02,118 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:02,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953800158] [2025-03-17 11:35:02,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953800158] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:02,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:02,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:02,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716576275] [2025-03-17 11:35:02,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:02,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:02,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:02,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:02,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:02,119 INFO L87 Difference]: Start difference. First operand 207 states and 266 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-17 11:35:06,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:35:10,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:35:11,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:11,512 INFO L93 Difference]: Finished difference Result 298 states and 396 transitions. [2025-03-17 11:35:11,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:35:11,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 75 [2025-03-17 11:35:11,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:11,513 INFO L225 Difference]: With dead ends: 298 [2025-03-17 11:35:11,514 INFO L226 Difference]: Without dead ends: 298 [2025-03-17 11:35:11,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:35:11,516 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 316 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:11,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 404 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2025-03-17 11:35:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2025-03-17 11:35:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 209. [2025-03-17 11:35:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 192 states have (on average 1.25) internal successors, (240), 203 states have internal predecessors, (240), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:35:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 266 transitions. [2025-03-17 11:35:11,528 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 266 transitions. Word has length 75 [2025-03-17 11:35:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:11,529 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 266 transitions. [2025-03-17 11:35:11,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-17 11:35:11,532 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 266 transitions. [2025-03-17 11:35:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-17 11:35:11,533 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:11,533 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:11,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 11:35:11,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:11,734 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:11,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:11,734 INFO L85 PathProgramCache]: Analyzing trace with hash -862367133, now seen corresponding path program 1 times [2025-03-17 11:35:11,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:11,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25136881] [2025-03-17 11:35:11,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:11,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:11,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:11,737 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:11,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 11:35:11,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 11:35:11,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 11:35:11,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:11,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:12,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:12,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:35:12,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:12,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:12,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25136881] [2025-03-17 11:35:12,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25136881] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:12,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:12,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:12,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030860386] [2025-03-17 11:35:12,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:12,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:12,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:12,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:12,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:12,032 INFO L87 Difference]: Start difference. First operand 209 states and 266 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:12,082 INFO L93 Difference]: Finished difference Result 185 states and 228 transitions. [2025-03-17 11:35:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 77 [2025-03-17 11:35:12,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:12,084 INFO L225 Difference]: With dead ends: 185 [2025-03-17 11:35:12,084 INFO L226 Difference]: Without dead ends: 185 [2025-03-17 11:35:12,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:35:12,086 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 27 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:12,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 510 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:35:12,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2025-03-17 11:35:12,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2025-03-17 11:35:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 168 states have (on average 1.2023809523809523) internal successors, (202), 179 states have internal predecessors, (202), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:35:12,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 228 transitions. [2025-03-17 11:35:12,092 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 228 transitions. Word has length 77 [2025-03-17 11:35:12,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:12,092 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 228 transitions. [2025-03-17 11:35:12,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:12,092 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 228 transitions. [2025-03-17 11:35:12,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-17 11:35:12,094 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:12,094 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:12,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 11:35:12,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:12,296 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:12,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:12,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1314419332, now seen corresponding path program 1 times [2025-03-17 11:35:12,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:12,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1019745425] [2025-03-17 11:35:12,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:12,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:12,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:12,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 11:35:12,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 11:35:12,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 11:35:12,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:12,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:12,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:12,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 11:35:12,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:12,597 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:12,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019745425] [2025-03-17 11:35:12,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019745425] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:12,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:12,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:12,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873494019] [2025-03-17 11:35:12,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:12,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:12,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:12,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:12,599 INFO L87 Difference]: Start difference. First operand 185 states and 228 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:12,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:12,627 INFO L93 Difference]: Finished difference Result 188 states and 232 transitions. [2025-03-17 11:35:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:12,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 77 [2025-03-17 11:35:12,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:12,629 INFO L225 Difference]: With dead ends: 188 [2025-03-17 11:35:12,629 INFO L226 Difference]: Without dead ends: 188 [2025-03-17 11:35:12,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:12,629 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 563 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 [2025-03-17 11:35:12,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 563 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:35:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2025-03-17 11:35:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2025-03-17 11:35:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 170 states have (on average 1.2058823529411764) internal successors, (205), 182 states have internal predecessors, (205), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-17 11:35:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 232 transitions. [2025-03-17 11:35:12,634 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 232 transitions. Word has length 77 [2025-03-17 11:35:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:12,634 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 232 transitions. [2025-03-17 11:35:12,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 232 transitions. [2025-03-17 11:35:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-17 11:35:12,635 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:12,635 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:12,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 11:35:12,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:12,835 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:12,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash -210858888, now seen corresponding path program 1 times [2025-03-17 11:35:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:12,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [233879365] [2025-03-17 11:35:12,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:12,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:12,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:12,838 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:12,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 11:35:13,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 11:35:13,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 11:35:13,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:13,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:13,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:13,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 11:35:13,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:35:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 11:35:13,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:13,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233879365] [2025-03-17 11:35:13,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233879365] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:35:13,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:35:13,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-03-17 11:35:13,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111239337] [2025-03-17 11:35:13,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:35:13,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:35:13,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:13,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:35:13,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:35:13,563 INFO L87 Difference]: Start difference. First operand 188 states and 232 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:35:13,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:13,963 INFO L93 Difference]: Finished difference Result 374 states and 454 transitions. [2025-03-17 11:35:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:35:13,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2025-03-17 11:35:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:13,966 INFO L225 Difference]: With dead ends: 374 [2025-03-17 11:35:13,966 INFO L226 Difference]: Without dead ends: 374 [2025-03-17 11:35:13,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:35:13,966 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 426 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:13,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 735 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:35:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2025-03-17 11:35:13,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2025-03-17 11:35:13,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 353 states have (on average 1.1841359773371105) internal successors, (418), 365 states have internal predecessors, (418), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2025-03-17 11:35:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 454 transitions. [2025-03-17 11:35:13,976 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 454 transitions. Word has length 79 [2025-03-17 11:35:13,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:13,976 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 454 transitions. [2025-03-17 11:35:13,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:35:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 454 transitions. [2025-03-17 11:35:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2025-03-17 11:35:13,978 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:13,978 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:13,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 11:35:14,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:14,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:14,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1163811046, now seen corresponding path program 1 times [2025-03-17 11:35:14,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:14,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624241857] [2025-03-17 11:35:14,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:14,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:14,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:14,182 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:14,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 11:35:14,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 238 statements into 1 equivalence classes. [2025-03-17 11:35:14,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 238 of 238 statements. [2025-03-17 11:35:14,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:14,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:14,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:35:14,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-17 11:35:14,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:35:15,015 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-17 11:35:15,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:15,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624241857] [2025-03-17 11:35:15,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624241857] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:35:15,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:35:15,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:35:15,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874853231] [2025-03-17 11:35:15,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:35:15,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:35:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:15,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:35:15,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:35:15,019 INFO L87 Difference]: Start difference. First operand 374 states and 454 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:35:15,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:15,131 INFO L93 Difference]: Finished difference Result 385 states and 477 transitions. [2025-03-17 11:35:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:35:15,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 238 [2025-03-17 11:35:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:15,134 INFO L225 Difference]: With dead ends: 385 [2025-03-17 11:35:15,134 INFO L226 Difference]: Without dead ends: 385 [2025-03-17 11:35:15,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-17 11:35:15,135 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 5 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:15,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 563 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:35:15,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2025-03-17 11:35:15,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2025-03-17 11:35:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 361 states have (on average 1.1966759002770082) internal successors, (432), 373 states have internal predecessors, (432), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (24), 7 states have call predecessors, (24), 16 states have call successors, (24) [2025-03-17 11:35:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 472 transitions. [2025-03-17 11:35:15,145 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 472 transitions. Word has length 238 [2025-03-17 11:35:15,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:15,146 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 472 transitions. [2025-03-17 11:35:15,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:35:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 472 transitions. [2025-03-17 11:35:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2025-03-17 11:35:15,148 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:15,148 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:15,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 11:35:15,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:15,349 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:15,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash -791737194, now seen corresponding path program 2 times [2025-03-17 11:35:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:15,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955892067] [2025-03-17 11:35:15,350 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:35:15,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:15,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:15,352 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:15,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 11:35:15,671 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 242 statements into 2 equivalence classes. [2025-03-17 11:35:16,033 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 242 of 242 statements. [2025-03-17 11:35:16,033 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:35:16,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:16,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:35:16,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 124 proven. 3 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-17 11:35:16,140 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:35:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 106 proven. 20 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2025-03-17 11:35:16,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:16,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955892067] [2025-03-17 11:35:16,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955892067] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:35:16,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:35:16,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 11:35:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870670542] [2025-03-17 11:35:16,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:35:16,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:35:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:16,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:35:16,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:35:16,316 INFO L87 Difference]: Start difference. First operand 383 states and 472 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 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) [2025-03-17 11:35:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:16,560 INFO L93 Difference]: Finished difference Result 391 states and 482 transitions. [2025-03-17 11:35:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 11:35:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 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 242 [2025-03-17 11:35:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:16,563 INFO L225 Difference]: With dead ends: 391 [2025-03-17 11:35:16,563 INFO L226 Difference]: Without dead ends: 389 [2025-03-17 11:35:16,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-17 11:35:16,564 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 5 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:16,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 939 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:35:16,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2025-03-17 11:35:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 387. [2025-03-17 11:35:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 365 states have (on average 1.2) internal successors, (438), 377 states have internal predecessors, (438), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2025-03-17 11:35:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 474 transitions. [2025-03-17 11:35:16,575 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 474 transitions. Word has length 242 [2025-03-17 11:35:16,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:16,576 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 474 transitions. [2025-03-17 11:35:16,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 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) [2025-03-17 11:35:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 474 transitions. [2025-03-17 11:35:16,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2025-03-17 11:35:16,578 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:16,578 INFO L218 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:16,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 11:35:16,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:16,779 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:16,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:16,780 INFO L85 PathProgramCache]: Analyzing trace with hash 959549590, now seen corresponding path program 3 times [2025-03-17 11:35:16,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:16,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728664766] [2025-03-17 11:35:16,781 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:35:16,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:16,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:16,782 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:35:16,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 11:35:17,143 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 246 statements into 9 equivalence classes.