./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e2fb8bed 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_SFH_test6-1.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 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:35:44,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:35:44,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:35:44,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:35:44,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:35:44,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:35:44,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:35:44,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:35:44,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:35:44,873 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:35:44,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:35:44,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:35:44,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:35:44,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:35:44,873 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:35:44,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:35:44,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:35:44,874 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:35:44,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:35:44,875 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:35:44,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:35:44,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:35:44,876 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 -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2025-03-08 22:35:45,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:35:45,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:35:45,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:35:45,104 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:35:45,104 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:35:45,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2025-03-08 22:35:46,179 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd80c2b9/8fed92f1e8644157965f558538ab8380/FLAG6cbfceaaa [2025-03-08 22:35:46,488 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:35:46,490 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2025-03-08 22:35:46,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd80c2b9/8fed92f1e8644157965f558538ab8380/FLAG6cbfceaaa [2025-03-08 22:35:46,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd80c2b9/8fed92f1e8644157965f558538ab8380 [2025-03-08 22:35:46,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:35:46,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:35:46,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:35:46,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:35:46,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:35:46,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:35:46" (1/1) ... [2025-03-08 22:35:46,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea739d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:46, skipping insertion in model container [2025-03-08 22:35:46,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:35:46" (1/1) ... [2025-03-08 22:35:46,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:35:46,918 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,946 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,948 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,950 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,953 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,972 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,972 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,973 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,974 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,975 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,976 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,980 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,980 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,982 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:46,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:35:47,002 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) [2025-03-08 22:35:47,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ff0611b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:47, skipping insertion in model container [2025-03-08 22:35:47,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:35:47,004 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-08 22:35:47,005 INFO L158 Benchmark]: Toolchain (without parser) took 485.27ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 108.4MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:35:47,007 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:35:47,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.46ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 108.4MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:35:47,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.46ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 108.4MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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_SFH_test6-1.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 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:35:48,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:35:48,655 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-08 22:35:48,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:35:48,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:35:48,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:35:48,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:35:48,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:35:48,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:35:48,682 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:35:48,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:35:48,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:35:48,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:35:48,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:35:48,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:35:48,684 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:35:48,684 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:35:48,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:35:48,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:35:48,685 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 -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2025-03-08 22:35:48,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:35:48,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:35:48,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:35:48,932 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:35:48,933 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:35:48,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2025-03-08 22:35:50,133 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ad4717c/d4262aaed8164b45b2bbcb685f56e41a/FLAGbc9cec3b2 [2025-03-08 22:35:50,380 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:35:50,380 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2025-03-08 22:35:50,392 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ad4717c/d4262aaed8164b45b2bbcb685f56e41a/FLAGbc9cec3b2 [2025-03-08 22:35:50,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ad4717c/d4262aaed8164b45b2bbcb685f56e41a [2025-03-08 22:35:50,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:35:50,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:35:50,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:35:50,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:35:50,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:35:50,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:35:50" (1/1) ... [2025-03-08 22:35:50,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aface42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:50, skipping insertion in model container [2025-03-08 22:35:50,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:35:50" (1/1) ... [2025-03-08 22:35:50,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:35:51,043 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,068 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,070 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,077 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,084 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,111 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,113 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,115 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,120 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,120 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,121 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,125 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:35:51,146 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-08 22:35:51,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:35:51,188 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,202 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,205 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,209 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,214 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,234 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,235 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,236 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,236 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,238 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,239 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,239 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,240 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,242 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:35:51,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:35:51,251 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:35:51,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:35:51,387 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:35:51,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51 WrapperNode [2025-03-08 22:35:51,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:35:51,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:35:51,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:35:51,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:35:51,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,450 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1026 [2025-03-08 22:35:51,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:35:51,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:35:51,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:35:51,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:35:51,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,521 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 220, 34]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 49, 4]. [2025-03-08 22:35:51,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,563 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:35:51,578 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:35:51,578 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:35:51,578 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:35:51,582 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (1/1) ... [2025-03-08 22:35:51,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:35:51,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:35:51,608 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) [2025-03-08 22:35:51,611 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 [2025-03-08 22:35:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-08 22:35:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-08 22:35:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-08 22:35:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-08 22:35:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-08 22:35:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-08 22:35:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:35:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-08 22:35:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-08 22:35:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:35:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:35:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 22:35:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 22:35:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-08 22:35:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-08 22:35:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:35:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:35:51,824 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:35:51,826 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:35:51,876 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-08 22:35:58,304 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-08 22:35:58,305 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-08 22:35:58,305 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-08 22:35:58,358 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-03-08 22:35:58,358 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:35:58,370 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:35:58,372 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:35:58,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:35:58 BoogieIcfgContainer [2025-03-08 22:35:58,372 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:35:58,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:35:58,374 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:35:58,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:35:58,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:35:50" (1/3) ... [2025-03-08 22:35:58,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c0769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:35:58, skipping insertion in model container [2025-03-08 22:35:58,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:35:51" (2/3) ... [2025-03-08 22:35:58,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c0769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:35:58, skipping insertion in model container [2025-03-08 22:35:58,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:35:58" (3/3) ... [2025-03-08 22:35:58,380 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2025-03-08 22:35:58,390 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:35:58,393 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test6-1.i that has 6 procedures, 229 locations, 1 initial locations, 34 loop locations, and 2 error locations. [2025-03-08 22:35:58,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:35:58,433 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;@5a10f091, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:35:58,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:35:58,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 204 states have (on average 1.5980392156862746) internal successors, (326), 209 states have internal predecessors, (326), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-08 22:35:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-08 22:35:58,445 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:35:58,445 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:35:58,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:35:58,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:35:58,449 INFO L85 PathProgramCache]: Analyzing trace with hash -345517548, now seen corresponding path program 1 times [2025-03-08 22:35:58,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:35:58,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796956608] [2025-03-08 22:35:58,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:35:58,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:35:58,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:35:58,461 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) [2025-03-08 22:35:58,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:35:58,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 22:35:58,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 22:35:58,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:35:58,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:35:58,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 22:35:58,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:35:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:35:58,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:35:58,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:35:58,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796956608] [2025-03-08 22:35:58,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796956608] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:35:58,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:35:58,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:35:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754311676] [2025-03-08 22:35:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:35:58,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:35:58,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:35:58,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:35:58,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:35:58,673 INFO L87 Difference]: Start difference. First operand has 229 states, 204 states have (on average 1.5980392156862746) internal successors, (326), 209 states have internal predecessors, (326), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2025-03-08 22:35:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:35:58,698 INFO L93 Difference]: Finished difference Result 224 states and 289 transitions. [2025-03-08 22:35:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:35:58,701 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 10 [2025-03-08 22:35:58,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:35:58,709 INFO L225 Difference]: With dead ends: 224 [2025-03-08 22:35:58,710 INFO L226 Difference]: Without dead ends: 222 [2025-03-08 22:35:58,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:35:58,714 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 22:35:58,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 22:35:58,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2025-03-08 22:35:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2025-03-08 22:35:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 199 states have (on average 1.2914572864321607) internal successors, (257), 204 states have internal predecessors, (257), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:35:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 287 transitions. [2025-03-08 22:35:58,758 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 287 transitions. Word has length 10 [2025-03-08 22:35:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:35:58,759 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 287 transitions. [2025-03-08 22:35:58,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2025-03-08 22:35:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 287 transitions. [2025-03-08 22:35:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-08 22:35:58,760 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:35:58,761 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:35:58,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 22:35:58,961 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 [2025-03-08 22:35:58,961 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:35:58,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:35:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1820469489, now seen corresponding path program 1 times [2025-03-08 22:35:58,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:35:58,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245775453] [2025-03-08 22:35:58,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:35:58,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:35:58,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:35:58,967 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) [2025-03-08 22:35:58,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:35:59,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-08 22:35:59,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-08 22:35:59,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:35:59,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:35:59,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:35:59,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:35:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:35:59,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:35:59,209 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:35:59,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245775453] [2025-03-08 22:35:59,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245775453] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:35:59,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:35:59,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:35:59,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878660867] [2025-03-08 22:35:59,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:35:59,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:35:59,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:35:59,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:35:59,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:35:59,213 INFO L87 Difference]: Start difference. First operand 222 states and 287 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-03-08 22:36:02,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:02,027 INFO L93 Difference]: Finished difference Result 334 states and 435 transitions. [2025-03-08 22:36:02,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:36:02,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 12 [2025-03-08 22:36:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:02,029 INFO L225 Difference]: With dead ends: 334 [2025-03-08 22:36:02,029 INFO L226 Difference]: Without dead ends: 334 [2025-03-08 22:36:02,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:02,030 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 135 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:02,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 776 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-03-08 22:36:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2025-03-08 22:36:02,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 330. [2025-03-08 22:36:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 307 states have (on average 1.3029315960912051) internal successors, (400), 312 states have internal predecessors, (400), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:36:02,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 430 transitions. [2025-03-08 22:36:02,046 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 430 transitions. Word has length 12 [2025-03-08 22:36:02,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:02,046 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 430 transitions. [2025-03-08 22:36:02,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-03-08 22:36:02,046 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 430 transitions. [2025-03-08 22:36:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-08 22:36:02,047 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:02,047 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:02,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 22:36:02,247 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 [2025-03-08 22:36:02,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:02,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:02,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2076188587, now seen corresponding path program 1 times [2025-03-08 22:36:02,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:02,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [725317791] [2025-03-08 22:36:02,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:02,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:02,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:02,250 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) [2025-03-08 22:36:02,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:36:02,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-08 22:36:02,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-08 22:36:02,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:02,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:02,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:36:02,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:02,399 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:36:02,400 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:36:02,400 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:36:02,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-08 22:36:02,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 22:36:02,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-08 22:36:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:02,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:02,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:02,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725317791] [2025-03-08 22:36:02,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725317791] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:02,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:02,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:02,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398946880] [2025-03-08 22:36:02,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:02,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:02,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:02,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:02,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:02,474 INFO L87 Difference]: Start difference. First operand 330 states and 430 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:02,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:02,907 INFO L93 Difference]: Finished difference Result 507 states and 667 transitions. [2025-03-08 22:36:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:36:02,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-03-08 22:36:02,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:02,909 INFO L225 Difference]: With dead ends: 507 [2025-03-08 22:36:02,909 INFO L226 Difference]: Without dead ends: 507 [2025-03-08 22:36:02,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:36:02,910 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 225 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:02,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 795 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 22:36:02,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2025-03-08 22:36:02,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 329. [2025-03-08 22:36:02,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 306 states have (on average 1.3006535947712419) internal successors, (398), 311 states have internal predecessors, (398), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:36:02,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 428 transitions. [2025-03-08 22:36:02,926 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 428 transitions. Word has length 15 [2025-03-08 22:36:02,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:02,926 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 428 transitions. [2025-03-08 22:36:02,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:02,927 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 428 transitions. [2025-03-08 22:36:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-08 22:36:02,928 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:02,928 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:02,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 22:36:03,129 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 [2025-03-08 22:36:03,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:03,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:03,130 INFO L85 PathProgramCache]: Analyzing trace with hash 956046006, now seen corresponding path program 1 times [2025-03-08 22:36:03,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:03,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380553872] [2025-03-08 22:36:03,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:03,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:03,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:03,133 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) [2025-03-08 22:36:03,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 22:36:03,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-08 22:36:03,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-08 22:36:03,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:03,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:03,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:36:03,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:03,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:03,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:03,334 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:03,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380553872] [2025-03-08 22:36:03,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380553872] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:03,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:03,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:36:03,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306516947] [2025-03-08 22:36:03,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:03,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:36:03,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:03,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:36:03,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:36:03,335 INFO L87 Difference]: Start difference. First operand 329 states and 428 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:03,434 INFO L93 Difference]: Finished difference Result 369 states and 468 transitions. [2025-03-08 22:36:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:36:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-08 22:36:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:03,435 INFO L225 Difference]: With dead ends: 369 [2025-03-08 22:36:03,436 INFO L226 Difference]: Without dead ends: 369 [2025-03-08 22:36:03,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:36:03,436 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 8 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:03,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 519 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2025-03-08 22:36:03,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2025-03-08 22:36:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 346 states have (on average 1.2658959537572254) internal successors, (438), 351 states have internal predecessors, (438), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:36:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 468 transitions. [2025-03-08 22:36:03,461 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 468 transitions. Word has length 48 [2025-03-08 22:36:03,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:03,461 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 468 transitions. [2025-03-08 22:36:03,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:03,461 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 468 transitions. [2025-03-08 22:36:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-08 22:36:03,462 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:03,462 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:03,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 22:36:03,662 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 [2025-03-08 22:36:03,663 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:03,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:03,663 INFO L85 PathProgramCache]: Analyzing trace with hash 925026199, now seen corresponding path program 1 times [2025-03-08 22:36:03,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:03,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676711110] [2025-03-08 22:36:03,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:03,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:03,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:03,666 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) [2025-03-08 22:36:03,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 22:36:03,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-08 22:36:03,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-08 22:36:03,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:03,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:03,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:36:03,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:03,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:03,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:03,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676711110] [2025-03-08 22:36:03,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676711110] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:03,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:03,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21670079] [2025-03-08 22:36:03,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:03,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:03,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:03,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:03,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:03,890 INFO L87 Difference]: Start difference. First operand 369 states and 468 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:03,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:03,966 INFO L93 Difference]: Finished difference Result 335 states and 412 transitions. [2025-03-08 22:36:03,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:36:03,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-08 22:36:03,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:03,968 INFO L225 Difference]: With dead ends: 335 [2025-03-08 22:36:03,968 INFO L226 Difference]: Without dead ends: 335 [2025-03-08 22:36:03,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:36:03,969 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 32 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:03,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 751 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2025-03-08 22:36:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2025-03-08 22:36:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 312 states have (on average 1.2243589743589745) internal successors, (382), 317 states have internal predecessors, (382), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-08 22:36:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 412 transitions. [2025-03-08 22:36:03,976 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 412 transitions. Word has length 48 [2025-03-08 22:36:03,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:03,976 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 412 transitions. [2025-03-08 22:36:03,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 412 transitions. [2025-03-08 22:36:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-08 22:36:03,977 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:03,977 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:03,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 22:36:04,177 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 [2025-03-08 22:36:04,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:04,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash -983849296, now seen corresponding path program 1 times [2025-03-08 22:36:04,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:04,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1940933483] [2025-03-08 22:36:04,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:04,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:04,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:04,181 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) [2025-03-08 22:36:04,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 22:36:04,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-08 22:36:04,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-08 22:36:04,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:04,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:04,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-08 22:36:04,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:04,516 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:04,516 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:04,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940933483] [2025-03-08 22:36:04,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940933483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:04,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:04,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 22:36:04,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623751717] [2025-03-08 22:36:04,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:04,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:36:04,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:04,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:36:04,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:36:04,518 INFO L87 Difference]: Start difference. First operand 335 states and 412 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:04,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:04,640 INFO L93 Difference]: Finished difference Result 344 states and 422 transitions. [2025-03-08 22:36:04,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 22:36:04,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-08 22:36:04,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:04,642 INFO L225 Difference]: With dead ends: 344 [2025-03-08 22:36:04,643 INFO L226 Difference]: Without dead ends: 344 [2025-03-08 22:36:04,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:36:04,643 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 8 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:04,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1869 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:04,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-03-08 22:36:04,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 343. [2025-03-08 22:36:04,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 317 states have (on average 1.220820189274448) internal successors, (387), 323 states have internal predecessors, (387), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-08 22:36:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 421 transitions. [2025-03-08 22:36:04,649 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 421 transitions. Word has length 48 [2025-03-08 22:36:04,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:04,650 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 421 transitions. [2025-03-08 22:36:04,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:36:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 421 transitions. [2025-03-08 22:36:04,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 22:36:04,651 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:04,651 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] [2025-03-08 22:36:04,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-08 22:36:04,851 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 [2025-03-08 22:36:04,852 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:04,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1472963590, now seen corresponding path program 1 times [2025-03-08 22:36:04,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:04,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601697249] [2025-03-08 22:36:04,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:04,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:04,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:04,854 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) [2025-03-08 22:36:04,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 22:36:05,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 22:36:05,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 22:36:05,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:05,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:05,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:36:05,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:36:05,145 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:05,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:05,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601697249] [2025-03-08 22:36:05,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601697249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:05,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:05,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:05,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636654637] [2025-03-08 22:36:05,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:05,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:05,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:05,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:05,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:05,147 INFO L87 Difference]: Start difference. First operand 343 states and 421 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 22:36:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:05,344 INFO L93 Difference]: Finished difference Result 905 states and 1134 transitions. [2025-03-08 22:36:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:36:05,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2025-03-08 22:36:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:05,348 INFO L225 Difference]: With dead ends: 905 [2025-03-08 22:36:05,348 INFO L226 Difference]: Without dead ends: 905 [2025-03-08 22:36:05,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:05,349 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 501 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:05,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1418 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:36:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2025-03-08 22:36:05,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 851. [2025-03-08 22:36:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 805 states have (on average 1.2434782608695651) internal successors, (1001), 812 states have internal predecessors, (1001), 33 states have call successors, (33), 12 states have call predecessors, (33), 11 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2025-03-08 22:36:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1066 transitions. [2025-03-08 22:36:05,367 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1066 transitions. Word has length 68 [2025-03-08 22:36:05,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:05,367 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1066 transitions. [2025-03-08 22:36:05,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 22:36:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1066 transitions. [2025-03-08 22:36:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-08 22:36:05,368 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:05,369 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:05,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-08 22:36:05,569 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 [2025-03-08 22:36:05,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:05,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1374354696, now seen corresponding path program 1 times [2025-03-08 22:36:05,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:05,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017462457] [2025-03-08 22:36:05,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:05,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:05,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:05,572 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) [2025-03-08 22:36:05,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 22:36:05,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-08 22:36:05,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-08 22:36:05,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:05,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:05,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:36:05,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:36:05,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:05,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:05,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017462457] [2025-03-08 22:36:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017462457] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:05,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:05,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163168672] [2025-03-08 22:36:05,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:05,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:05,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:05,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:05,920 INFO L87 Difference]: Start difference. First operand 851 states and 1066 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:36:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:05,955 INFO L93 Difference]: Finished difference Result 863 states and 1081 transitions. [2025-03-08 22:36:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:36:05,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 94 [2025-03-08 22:36:05,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:05,958 INFO L225 Difference]: With dead ends: 863 [2025-03-08 22:36:05,958 INFO L226 Difference]: Without dead ends: 863 [2025-03-08 22:36:05,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:05,958 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:05,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 811 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 22:36:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2025-03-08 22:36:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2025-03-08 22:36:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 814 states have (on average 1.2444717444717446) internal successors, (1013), 824 states have internal predecessors, (1013), 33 states have call successors, (33), 12 states have call predecessors, (33), 14 states have return successors, (35), 26 states have call predecessors, (35), 29 states have call successors, (35) [2025-03-08 22:36:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1081 transitions. [2025-03-08 22:36:05,973 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1081 transitions. Word has length 94 [2025-03-08 22:36:05,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:05,974 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1081 transitions. [2025-03-08 22:36:05,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:36:05,974 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1081 transitions. [2025-03-08 22:36:05,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-08 22:36:05,975 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:05,975 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:05,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-08 22:36:06,175 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 [2025-03-08 22:36:06,175 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:06,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash -503453204, now seen corresponding path program 1 times [2025-03-08 22:36:06,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:06,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676909312] [2025-03-08 22:36:06,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:06,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:06,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:06,178 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) [2025-03-08 22:36:06,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 22:36:06,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-08 22:36:06,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-08 22:36:06,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:06,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:06,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-08 22:36:06,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 22:36:06,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:36:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-08 22:36:06,952 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:06,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676909312] [2025-03-08 22:36:06,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676909312] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:36:06,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:36:06,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2025-03-08 22:36:06,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203218307] [2025-03-08 22:36:06,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:36:06,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 22:36:06,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:06,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 22:36:06,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-08 22:36:06,954 INFO L87 Difference]: Start difference. First operand 863 states and 1081 transitions. Second operand has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-08 22:36:08,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:08,654 INFO L93 Difference]: Finished difference Result 3258 states and 4122 transitions. [2025-03-08 22:36:08,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-08 22:36:08,655 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 96 [2025-03-08 22:36:08,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:08,669 INFO L225 Difference]: With dead ends: 3258 [2025-03-08 22:36:08,669 INFO L226 Difference]: Without dead ends: 3258 [2025-03-08 22:36:08,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-03-08 22:36:08,670 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 3708 mSDsluCounter, 6267 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3739 SdHoareTripleChecker+Valid, 7209 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:08,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3739 Valid, 7209 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 22:36:08,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2025-03-08 22:36:08,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 2407. [2025-03-08 22:36:08,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2307 states have (on average 1.2514087559601215) internal successors, (2887), 2325 states have internal predecessors, (2887), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2025-03-08 22:36:08,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3030 transitions. [2025-03-08 22:36:08,722 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3030 transitions. Word has length 96 [2025-03-08 22:36:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:08,723 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 3030 transitions. [2025-03-08 22:36:08,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-08 22:36:08,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3030 transitions. [2025-03-08 22:36:08,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-08 22:36:08,724 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:08,724 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:08,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-08 22:36:08,925 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 [2025-03-08 22:36:08,925 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:08,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:08,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1294074739, now seen corresponding path program 1 times [2025-03-08 22:36:08,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509591706] [2025-03-08 22:36:08,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:08,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:08,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:08,928 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) [2025-03-08 22:36:08,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 22:36:09,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-08 22:36:09,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-08 22:36:09,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:09,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:09,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 22:36:09,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:09,276 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:36:09,276 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:36:09,277 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:36:09,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-08 22:36:09,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 22:36:09,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-08 22:36:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-08 22:36:09,331 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:36:09,331 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:09,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509591706] [2025-03-08 22:36:09,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509591706] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:36:09,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:36:09,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:36:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749159708] [2025-03-08 22:36:09,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:36:09,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:36:09,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:09,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:36:09,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:36:09,332 INFO L87 Difference]: Start difference. First operand 2407 states and 3030 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:36:09,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:09,659 INFO L93 Difference]: Finished difference Result 3399 states and 4348 transitions. [2025-03-08 22:36:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:36:09,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 104 [2025-03-08 22:36:09,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:09,669 INFO L225 Difference]: With dead ends: 3399 [2025-03-08 22:36:09,669 INFO L226 Difference]: Without dead ends: 3399 [2025-03-08 22:36:09,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:36:09,670 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 210 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:09,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 754 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:36:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2025-03-08 22:36:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 2423. [2025-03-08 22:36:09,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2323 states have (on average 1.2496771416272061) internal successors, (2903), 2341 states have internal predecessors, (2903), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2025-03-08 22:36:09,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3046 transitions. [2025-03-08 22:36:09,711 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3046 transitions. Word has length 104 [2025-03-08 22:36:09,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:09,711 INFO L471 AbstractCegarLoop]: Abstraction has 2423 states and 3046 transitions. [2025-03-08 22:36:09,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:36:09,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3046 transitions. [2025-03-08 22:36:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-08 22:36:09,713 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:09,713 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:09,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 22:36:09,913 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 [2025-03-08 22:36:09,913 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:09,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:09,914 INFO L85 PathProgramCache]: Analyzing trace with hash 55779331, now seen corresponding path program 1 times [2025-03-08 22:36:09,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:09,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381282156] [2025-03-08 22:36:09,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:36:09,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:09,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:09,916 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) [2025-03-08 22:36:09,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 22:36:10,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 22:36:10,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 22:36:10,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:36:10,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:36:10,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:36:10,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:36:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-08 22:36:10,358 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:36:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:36:10,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:36:10,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381282156] [2025-03-08 22:36:10,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381282156] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:36:10,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:36:10,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-08 22:36:10,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671012689] [2025-03-08 22:36:10,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:36:10,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:36:10,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:36:10,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:36:10,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:36:10,444 INFO L87 Difference]: Start difference. First operand 2423 states and 3046 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 22:36:10,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:36:10,561 INFO L93 Difference]: Finished difference Result 2501 states and 3160 transitions. [2025-03-08 22:36:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 22:36:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2025-03-08 22:36:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:36:10,570 INFO L225 Difference]: With dead ends: 2501 [2025-03-08 22:36:10,570 INFO L226 Difference]: Without dead ends: 2501 [2025-03-08 22:36:10,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:36:10,571 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 5 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:36:10,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 810 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:36:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2025-03-08 22:36:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2483. [2025-03-08 22:36:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2377 states have (on average 1.2591501893142616) internal successors, (2993), 2395 states have internal predecessors, (2993), 69 states have call successors, (69), 32 states have call predecessors, (69), 35 states have return successors, (80), 55 states have call predecessors, (80), 65 states have call successors, (80) [2025-03-08 22:36:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3142 transitions. [2025-03-08 22:36:10,613 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3142 transitions. Word has length 111 [2025-03-08 22:36:10,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:36:10,613 INFO L471 AbstractCegarLoop]: Abstraction has 2483 states and 3142 transitions. [2025-03-08 22:36:10,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 22:36:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3142 transitions. [2025-03-08 22:36:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 22:36:10,614 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:36:10,614 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:36:10,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-08 22:36:10,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:10,814 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:36:10,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:36:10,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1211696569, now seen corresponding path program 2 times [2025-03-08 22:36:10,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:36:10,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127359785] [2025-03-08 22:36:10,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:36:10,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:36:10,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:36:10,818 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:36:10,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 22:36:11,064 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes.