./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/busybox-1.22.0/seq-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/busybox-1.22.0/seq-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 818ab4b51ffc469b9efe912d5b1ab30cad716c71cf3cb6e9f764a5c73afd2bee --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:04:37,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:04:37,600 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2025-02-06 12:04:37,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:04:37,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:04:37,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:04:37,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:04:37,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:04:37,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:04:37,621 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:04:37,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:04:37,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:04:37,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:04:37,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:04:37,621 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:04:37,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:04:37,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:04:37,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:04:37,622 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:04:37,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:04:37,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:04:37,623 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 818ab4b51ffc469b9efe912d5b1ab30cad716c71cf3cb6e9f764a5c73afd2bee [2025-02-06 12:04:37,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:04:37,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:04:37,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:04:37,837 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:04:37,837 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:04:37,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/seq-1.i [2025-02-06 12:04:39,241 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3cf75e0c6/243f1cf6354d470691e8b687f0d7d4ab/FLAG4139a44b1 [2025-02-06 12:04:39,654 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:04:39,655 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/seq-1.i [2025-02-06 12:04:39,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3cf75e0c6/243f1cf6354d470691e8b687f0d7d4ab/FLAG4139a44b1 [2025-02-06 12:04:39,720 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3cf75e0c6/243f1cf6354d470691e8b687f0d7d4ab [2025-02-06 12:04:39,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:04:39,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:04:39,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:04:39,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:04:39,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:04:39,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:04:39" (1/1) ... [2025-02-06 12:04:39,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cf4d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:39, skipping insertion in model container [2025-02-06 12:04:39,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:04:39" (1/1) ... [2025-02-06 12:04:39,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:04:40,651 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,652 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,654 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,658 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,660 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,661 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,662 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,662 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,663 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,663 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,664 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,667 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,668 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,673 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,677 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,686 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,688 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,705 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,707 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,708 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,710 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,711 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,713 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,714 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,725 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,726 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,729 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,731 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,731 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,732 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,732 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,740 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,741 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,741 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,754 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,760 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,764 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,769 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,778 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:40,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:04:40,810 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 12:04:40,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27c53f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:40, skipping insertion in model container [2025-02-06 12:04:40,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:04:40,811 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 12:04:40,813 INFO L158 Benchmark]: Toolchain (without parser) took 1087.06ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 70.5MB in the end (delta: 35.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 12:04:40,813 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:04:40,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1083.35ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 70.5MB in the end (delta: 35.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 12:04:40,815 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1083.35ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 70.5MB in the end (delta: 35.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2392]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/busybox-1.22.0/seq-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 818ab4b51ffc469b9efe912d5b1ab30cad716c71cf3cb6e9f764a5c73afd2bee --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:04:43,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:04:43,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2025-02-06 12:04:43,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:04:43,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:04:43,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:04:43,511 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:04:43,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:04:43,512 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:04:43,512 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:04:43,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:04:43,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:04:43,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:04:43,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:04:43,512 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:04:43,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:04:43,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:04:43,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:04:43,516 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:04:43,517 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:04:43,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:04:43,517 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 12:04:43,518 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 12:04:43,518 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:04:43,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:04:43,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:04:43,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:04:43,518 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 818ab4b51ffc469b9efe912d5b1ab30cad716c71cf3cb6e9f764a5c73afd2bee [2025-02-06 12:04:43,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:04:43,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:04:43,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:04:43,959 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:04:43,959 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:04:43,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/seq-1.i [2025-02-06 12:04:45,225 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9100b95d0/1712629cd96b4ad4b62f3c5e770feca6/FLAG588fa094f [2025-02-06 12:04:45,649 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:04:45,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/seq-1.i [2025-02-06 12:04:45,673 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9100b95d0/1712629cd96b4ad4b62f3c5e770feca6/FLAG588fa094f [2025-02-06 12:04:45,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9100b95d0/1712629cd96b4ad4b62f3c5e770feca6 [2025-02-06 12:04:45,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:04:45,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:04:45,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:04:45,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:04:45,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:04:45,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:04:45" (1/1) ... [2025-02-06 12:04:45,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1cdc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:45, skipping insertion in model container [2025-02-06 12:04:45,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:04:45" (1/1) ... [2025-02-06 12:04:45,743 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:04:46,539 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,539 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,545 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,554 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,556 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,559 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,561 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,562 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,563 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,564 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,565 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,567 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,571 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,581 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,582 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,586 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,590 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,600 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,605 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,605 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,611 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,612 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,614 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,619 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,639 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,641 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,643 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,648 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,650 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,650 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,651 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,651 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,658 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,662 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,663 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,680 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,691 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,695 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,699 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,712 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:04:46,750 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 12:04:46,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:04:46,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,825 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,827 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,829 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,831 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,833 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,833 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,835 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,838 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,840 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,843 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,843 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,847 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,856 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,857 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,882 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,882 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,884 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,884 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,894 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,898 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,899 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,900 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,902 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,903 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,904 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,905 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,907 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,909 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,910 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,916 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,922 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,925 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,932 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,939 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:04:46,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:04:46,960 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:04:47,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:04:47,203 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-02-06 12:04:47,209 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:04:47,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47 WrapperNode [2025-02-06 12:04:47,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:04:47,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:04:47,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:04:47,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:04:47,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,371 INFO L138 Inliner]: procedures = 584, calls = 697, calls flagged for inlining = 23, calls inlined = 22, statements flattened = 1676 [2025-02-06 12:04:47,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:04:47,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:04:47,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:04:47,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:04:47,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,437 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-06 12:04:47,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,543 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:04:47,570 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:04:47,570 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:04:47,570 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:04:47,571 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (1/1) ... [2025-02-06 12:04:47,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:04:47,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:04:47,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:04:47,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:04:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2025-02-06 12:04:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:04:47,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-02-06 12:04:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-02-06 12:04:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-02-06 12:04:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 12:04:47,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 12:04:47,620 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2025-02-06 12:04:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-02-06 12:04:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2025-02-06 12:04:47,621 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-02-06 12:04:47,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-02-06 12:04:48,083 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:04:48,090 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:05:05,294 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2352: call ULTIMATE.dealloc(getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset);havoc getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset; [2025-02-06 12:05:05,295 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3031: havoc getopt_long_#t~ret238#1; [2025-02-06 12:05:05,295 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2785: call ULTIMATE.dealloc(__main_~#opt_s~0#1.base, __main_~#opt_s~0#1.offset);havoc __main_~#opt_s~0#1.base, __main_~#opt_s~0#1.offset;call ULTIMATE.dealloc(__main_~#pp~1#1.base, __main_~#pp~1#1.offset);havoc __main_~#pp~1#1.base, __main_~#pp~1#1.offset; [2025-02-06 12:05:05,463 INFO L? ?]: Removed 1114 outVars from TransFormulas that were not future-live. [2025-02-06 12:05:05,463 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:05:05,525 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:05:05,529 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:05:05,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:05:05 BoogieIcfgContainer [2025-02-06 12:05:05,529 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:05:05,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:05:05,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:05:05,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:05:05,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:04:45" (1/3) ... [2025-02-06 12:05:05,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7890891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:05:05, skipping insertion in model container [2025-02-06 12:05:05,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:04:47" (2/3) ... [2025-02-06 12:05:05,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7890891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:05:05, skipping insertion in model container [2025-02-06 12:05:05,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:05:05" (3/3) ... [2025-02-06 12:05:05,544 INFO L128 eAbstractionObserver]: Analyzing ICFG seq-1.i [2025-02-06 12:05:05,556 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:05:05,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG seq-1.i that has 8 procedures, 1021 locations, 1 initial locations, 31 loop locations, and 430 error locations. [2025-02-06 12:05:05,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:05:05,628 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;@775e5c44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:05:05,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2025-02-06 12:05:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 1021 states, 566 states have (on average 2.03886925795053) internal successors, (1154), 996 states have internal predecessors, (1154), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:05:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:05:05,642 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:05:05,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:05:05,644 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr360REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2025-02-06 12:05:05,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:05:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1280937, now seen corresponding path program 1 times [2025-02-06 12:05:05,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:05:05,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331586954] [2025-02-06 12:05:05,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:05:05,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:05,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:05:05,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:05:05,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 12:05:05,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:05:06,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:05:06,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:05:06,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:05:06,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:05:06,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:05:06,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2025-02-06 12:05:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:06,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:05:06,698 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:05:06,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331586954] [2025-02-06 12:05:06,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331586954] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:05:06,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:05:06,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:05:06,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012161679] [2025-02-06 12:05:06,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:05:06,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:05:06,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:05:06,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:05:06,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:05:06,727 INFO L87 Difference]: Start difference. First operand has 1021 states, 566 states have (on average 2.03886925795053) internal successors, (1154), 996 states have internal predecessors, (1154), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:10,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:05:17,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:05:17,567 INFO L93 Difference]: Finished difference Result 1007 states and 1159 transitions. [2025-02-06 12:05:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:05:17,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-02-06 12:05:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:05:17,584 INFO L225 Difference]: With dead ends: 1007 [2025-02-06 12:05:17,588 INFO L226 Difference]: Without dead ends: 1007 [2025-02-06 12:05:17,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:05:17,591 INFO L435 NwaCegarLoop]: 790 mSDtfsCounter, 401 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2025-02-06 12:05:17,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1253 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2025-02-06 12:05:17,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2025-02-06 12:05:17,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 839. [2025-02-06 12:05:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 468 states have (on average 1.9978632478632479) internal successors, (935), 823 states have internal predecessors, (935), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 12:05:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 960 transitions. [2025-02-06 12:05:17,658 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 960 transitions. Word has length 3 [2025-02-06 12:05:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:05:17,658 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 960 transitions. [2025-02-06 12:05:17,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:17,658 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 960 transitions. [2025-02-06 12:05:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:05:17,658 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:05:17,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:05:17,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 12:05:17,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:17,863 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr361REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2025-02-06 12:05:17,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:05:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1280938, now seen corresponding path program 1 times [2025-02-06 12:05:17,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:05:17,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588216225] [2025-02-06 12:05:17,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:05:17,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:17,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:05:17,874 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:05:17,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 12:05:18,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:05:18,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:05:18,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:05:18,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:05:18,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:05:18,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:05:18,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-06 12:05:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:18,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:05:18,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:05:18,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588216225] [2025-02-06 12:05:18,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588216225] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:05:18,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:05:18,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:05:18,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838966557] [2025-02-06 12:05:18,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:05:18,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:05:18,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:05:18,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:05:18,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:05:18,908 INFO L87 Difference]: Start difference. First operand 839 states and 960 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:22,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:05:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:05:29,651 INFO L93 Difference]: Finished difference Result 838 states and 959 transitions. [2025-02-06 12:05:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:05:29,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-02-06 12:05:29,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:05:29,656 INFO L225 Difference]: With dead ends: 838 [2025-02-06 12:05:29,656 INFO L226 Difference]: Without dead ends: 838 [2025-02-06 12:05:29,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:05:29,657 INFO L435 NwaCegarLoop]: 952 mSDtfsCounter, 10 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2025-02-06 12:05:29,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1541 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2025-02-06 12:05:29,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2025-02-06 12:05:29,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2025-02-06 12:05:29,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 468 states have (on average 1.9957264957264957) internal successors, (934), 822 states have internal predecessors, (934), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 12:05:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 959 transitions. [2025-02-06 12:05:29,675 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 959 transitions. Word has length 3 [2025-02-06 12:05:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:05:29,675 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 959 transitions. [2025-02-06 12:05:29,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 959 transitions. [2025-02-06 12:05:29,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 12:05:29,676 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:05:29,676 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 12:05:29,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 12:05:29,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:29,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr357REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2025-02-06 12:05:29,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:05:29,880 INFO L85 PathProgramCache]: Analyzing trace with hash -493095266, now seen corresponding path program 1 times [2025-02-06 12:05:29,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:05:29,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857454946] [2025-02-06 12:05:29,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:05:29,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:05:29,885 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:05:29,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 12:05:30,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:05:30,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:05:30,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:05:30,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:05:30,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 12:05:30,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:05:31,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:31,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:05:31,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:05:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857454946] [2025-02-06 12:05:31,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857454946] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:05:31,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:05:31,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:05:31,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340060339] [2025-02-06 12:05:31,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:05:31,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:05:31,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:05:31,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:05:31,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:05:31,058 INFO L87 Difference]: Start difference. First operand 838 states and 959 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:05:31,256 INFO L93 Difference]: Finished difference Result 841 states and 963 transitions. [2025-02-06 12:05:31,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:05:31,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-06 12:05:31,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:05:31,262 INFO L225 Difference]: With dead ends: 841 [2025-02-06 12:05:31,262 INFO L226 Difference]: Without dead ends: 841 [2025-02-06 12:05:31,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:05:31,264 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 2 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:05:31,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1907 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 12:05:31,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2025-02-06 12:05:31,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 839. [2025-02-06 12:05:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 469 states have (on average 1.9936034115138592) internal successors, (935), 823 states have internal predecessors, (935), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 12:05:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 960 transitions. [2025-02-06 12:05:31,285 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 960 transitions. Word has length 6 [2025-02-06 12:05:31,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:05:31,286 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 960 transitions. [2025-02-06 12:05:31,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:31,287 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 960 transitions. [2025-02-06 12:05:31,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 12:05:31,287 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:05:31,287 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 12:05:31,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 12:05:31,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:31,491 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr359REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2025-02-06 12:05:31,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:05:31,492 INFO L85 PathProgramCache]: Analyzing trace with hash -493095106, now seen corresponding path program 1 times [2025-02-06 12:05:31,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:05:31,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156412672] [2025-02-06 12:05:31,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:05:31,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:31,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:05:31,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:05:31,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 12:05:31,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:05:32,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:05:32,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:05:32,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:05:32,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 12:05:32,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:05:32,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-06 12:05:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:32,908 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:05:32,908 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:05:32,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156412672] [2025-02-06 12:05:32,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156412672] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:05:32,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:05:32,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:05:32,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039474848] [2025-02-06 12:05:32,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:05:32,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:05:32,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:05:32,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:05:32,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:05:32,910 INFO L87 Difference]: Start difference. First operand 839 states and 960 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:36,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:05:40,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:05:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:05:48,026 INFO L93 Difference]: Finished difference Result 841 states and 962 transitions. [2025-02-06 12:05:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:05:48,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-06 12:05:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:05:48,031 INFO L225 Difference]: With dead ends: 841 [2025-02-06 12:05:48,031 INFO L226 Difference]: Without dead ends: 841 [2025-02-06 12:05:48,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:05:48,031 INFO L435 NwaCegarLoop]: 950 mSDtfsCounter, 11 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:05:48,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1541 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2025-02-06 12:05:48,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2025-02-06 12:05:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 840. [2025-02-06 12:05:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 470 states have (on average 1.9914893617021276) internal successors, (936), 824 states have internal predecessors, (936), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 12:05:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 961 transitions. [2025-02-06 12:05:48,045 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 961 transitions. Word has length 6 [2025-02-06 12:05:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:05:48,045 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 961 transitions. [2025-02-06 12:05:48,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:48,045 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 961 transitions. [2025-02-06 12:05:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 12:05:48,046 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:05:48,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:05:48,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 12:05:48,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:48,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr357REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2025-02-06 12:05:48,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:05:48,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1006968891, now seen corresponding path program 1 times [2025-02-06 12:05:48,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:05:48,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256946325] [2025-02-06 12:05:48,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:05:48,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:48,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:05:48,255 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:05:48,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 12:05:48,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:05:49,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:05:49,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:05:49,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:05:49,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:05:49,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:05:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:49,379 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:05:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:49,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:05:49,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256946325] [2025-02-06 12:05:49,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256946325] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:05:49,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:05:49,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-02-06 12:05:49,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575361343] [2025-02-06 12:05:49,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:05:49,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:05:49,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:05:49,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:05:49,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:05:49,641 INFO L87 Difference]: Start difference. First operand 840 states and 961 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:50,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:05:50,109 INFO L93 Difference]: Finished difference Result 848 states and 971 transitions. [2025-02-06 12:05:50,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:05:50,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-06 12:05:50,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:05:50,112 INFO L225 Difference]: With dead ends: 848 [2025-02-06 12:05:50,112 INFO L226 Difference]: Without dead ends: 848 [2025-02-06 12:05:50,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:05:50,115 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 8 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2859 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 12:05:50,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2859 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 12:05:50,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2025-02-06 12:05:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2025-02-06 12:05:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 478 states have (on average 1.9790794979079498) internal successors, (946), 832 states have internal predecessors, (946), 15 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 12:05:50,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 971 transitions. [2025-02-06 12:05:50,129 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 971 transitions. Word has length 9 [2025-02-06 12:05:50,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:05:50,130 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 971 transitions. [2025-02-06 12:05:50,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 971 transitions. [2025-02-06 12:05:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 12:05:50,130 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:05:50,130 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:05:50,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 12:05:50,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:50,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr359REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2025-02-06 12:05:50,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:05:50,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1006968731, now seen corresponding path program 1 times [2025-02-06 12:05:50,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:05:50,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810297968] [2025-02-06 12:05:50,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:05:50,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:05:50,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:05:50,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:05:50,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 12:05:50,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:05:51,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:05:51,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:05:51,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:05:51,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:05:51,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:05:51,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-06 12:05:52,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:52,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:05:53,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:05:53,194 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:05:53,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810297968] [2025-02-06 12:05:53,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810297968] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:05:53,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:05:53,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-06 12:05:53,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656840240] [2025-02-06 12:05:53,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:05:53,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:05:53,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:05:53,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:05:53,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:05:53,196 INFO L87 Difference]: Start difference. First operand 848 states and 971 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:05:57,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:06:01,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:06:05,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:06:09,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:06:13,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 12:06:17,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers []