./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/busybox-1.22.0/rm-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/busybox-1.22.0/rm-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 59e9a970db574e887b8f20a3b70f02a1835d825d4580388273c8fd31c622f7ca --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:15:29,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:15:29,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2025-03-04 09:15:29,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:15:29,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:15:29,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:15:29,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:15:29,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:15:29,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:15:29,853 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:15:29,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:15:29,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:15:29,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:15:29,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:15:29,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:15:29,855 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:15:29,856 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:15:29,856 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:15:29,856 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:15:29,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:15:29,856 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:15:29,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:15:29,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:15:29,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:15:29,857 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> 59e9a970db574e887b8f20a3b70f02a1835d825d4580388273c8fd31c622f7ca [2025-03-04 09:15:30,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:15:30,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:15:30,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:15:30,194 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:15:30,194 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:15:30,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/rm-1.i [2025-03-04 09:15:31,392 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f7fa298/b7ba15e3038e4887b82a0fb8ef6980fe/FLAGec84f5b9b [2025-03-04 09:15:31,879 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:15:31,880 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/rm-1.i [2025-03-04 09:15:31,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f7fa298/b7ba15e3038e4887b82a0fb8ef6980fe/FLAGec84f5b9b [2025-03-04 09:15:31,919 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f7fa298/b7ba15e3038e4887b82a0fb8ef6980fe [2025-03-04 09:15:31,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:15:31,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:15:31,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:15:31,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:15:31,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:15:31,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:15:31" (1/1) ... [2025-03-04 09:15:31,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf81921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:31, skipping insertion in model container [2025-03-04 09:15:31,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:15:31" (1/1) ... [2025-03-04 09:15:31,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:15:32,831 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,831 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,839 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,841 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,843 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,847 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,848 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,851 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,851 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,852 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,852 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,853 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,854 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,855 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,856 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,857 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,858 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,862 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,864 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,864 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,868 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,868 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,876 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,879 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,879 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,887 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,897 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,897 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,898 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,899 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,900 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,901 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,901 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,901 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,905 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,906 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,907 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,907 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,907 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,912 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,912 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,913 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,913 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,928 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,934 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,939 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,944 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,953 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,965 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,969 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:32,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:15:33,005 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-03-04 09:15:33,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73e42ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:33, skipping insertion in model container [2025-03-04 09:15:33,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:15:33,006 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 09:15:33,008 INFO L158 Benchmark]: Toolchain (without parser) took 1083.99ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 56.1MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-04 09:15:33,008 INFO L158 Benchmark]: CDTParser took 1.68ms. Allocated memory is still 201.3MB. Free memory was 127.0MB in the beginning and 126.7MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:15:33,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1082.26ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 56.1MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-04 09:15:33,009 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.68ms. Allocated memory is still 201.3MB. Free memory was 127.0MB in the beginning and 126.7MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1082.26ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 56.1MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2819]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/busybox-1.22.0/rm-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 59e9a970db574e887b8f20a3b70f02a1835d825d4580388273c8fd31c622f7ca --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:15:34,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:15:34,738 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2025-03-04 09:15:34,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:15:34,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:15:34,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:15:34,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:15:34,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:15:34,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:15:34,771 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:15:34,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:15:34,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:15:34,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:15:34,772 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:15:34,773 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:15:34,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 09:15:34,773 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 09:15:34,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:15:34,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:15:34,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:15:34,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:15:34,774 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> 59e9a970db574e887b8f20a3b70f02a1835d825d4580388273c8fd31c622f7ca [2025-03-04 09:15:35,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:15:35,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:15:35,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:15:35,049 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:15:35,049 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:15:35,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/rm-1.i [2025-03-04 09:15:36,189 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31667659/b3215cf7b283492ab8a6218b2095846a/FLAGa7f5c9f64 [2025-03-04 09:15:36,584 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:15:36,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/rm-1.i [2025-03-04 09:15:36,612 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31667659/b3215cf7b283492ab8a6218b2095846a/FLAGa7f5c9f64 [2025-03-04 09:15:36,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31667659/b3215cf7b283492ab8a6218b2095846a [2025-03-04 09:15:36,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:15:36,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:15:36,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:15:36,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:15:36,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:15:36,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:15:36" (1/1) ... [2025-03-04 09:15:36,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c075f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:36, skipping insertion in model container [2025-03-04 09:15:36,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:15:36" (1/1) ... [2025-03-04 09:15:36,835 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:15:37,841 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,841 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,843 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,844 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,846 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,855 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,857 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,859 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,861 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,862 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,863 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,864 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,864 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,864 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,866 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,867 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,868 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,869 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,870 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,871 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,873 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,873 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,875 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,876 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,883 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,883 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,885 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,886 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,889 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,901 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,903 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,905 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,906 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,908 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,908 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,909 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,910 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,915 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,920 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,921 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,922 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,923 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,928 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,929 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,930 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,930 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,942 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,944 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,947 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,951 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,954 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,961 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,966 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:37,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:15:38,013 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 09:15:38,034 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:15:38,083 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,084 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,084 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,085 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,085 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,086 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,087 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,088 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,089 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,089 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,090 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,091 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,092 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,092 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,092 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,093 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,094 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,097 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,098 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,098 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,099 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,099 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,102 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,103 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,103 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,108 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,108 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,109 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,110 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,120 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,121 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,121 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,122 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,123 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,123 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,125 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,125 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,130 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,131 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,131 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,132 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,132 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,134 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,135 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,135 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,135 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,143 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,145 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,148 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,150 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,154 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,160 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,165 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:15:38,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:15:38,181 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:15:38,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:15:38,471 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-04 09:15:38,476 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:15:38,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38 WrapperNode [2025-03-04 09:15:38,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:15:38,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:15:38,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:15:38,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:15:38,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,620 INFO L138 Inliner]: procedures = 681, calls = 1116, calls flagged for inlining = 33, calls inlined = 32, statements flattened = 2425 [2025-03-04 09:15:38,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:15:38,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:15:38,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:15:38,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:15:38,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,662 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-04 09:15:38,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,720 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:15:38,774 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:15:38,774 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:15:38,774 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:15:38,775 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (1/1) ... [2025-03-04 09:15:38,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:15:38,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:15:38,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 09:15:38,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure last_char_is [2025-03-04 09:15:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure last_char_is [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2025-03-04 09:15:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-04 09:15:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ask_confirmation [2025-03-04 09:15:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ask_confirmation [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2025-03-04 09:15:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:15:38,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-04 09:15:38,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-03-04 09:15:38,827 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure remove_file [2025-03-04 09:15:38,827 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_file [2025-03-04 09:15:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure access [2025-03-04 09:15:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure access [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-04 09:15:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 09:15:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-03-04 09:15:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2025-03-04 09:15:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg [2025-03-04 09:15:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg [2025-03-04 09:15:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure isatty [2025-03-04 09:15:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isatty [2025-03-04 09:15:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-04 09:15:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-04 09:15:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2025-03-04 09:15:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2025-03-04 09:15:39,282 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:15:39,285 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:15:39,460 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3564: havoc #t~nondet251; [2025-03-04 09:15:40,743 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3225: havoc ~dp~0#1.base, ~dp~0#1.offset, ~d~0#1.base, ~d~0#1.offset, ~status~0#1, ~return_value_closedir$8~0#1, ~return_value_rmdir$10~0#1; [2025-03-04 09:15:40,743 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3656: havoc lstat_#t~ret296#1; [2025-03-04 09:15:40,743 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3443: havoc xasprintf_#t~mem224#1.base, xasprintf_#t~mem224#1.offset;call ULTIMATE.dealloc(xasprintf_~#string_ptr~0#1.base, xasprintf_~#string_ptr~0#1.offset);havoc xasprintf_~#string_ptr~0#1.base, xasprintf_~#string_ptr~0#1.offset; [2025-03-04 09:15:40,743 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3203: call ULTIMATE.dealloc(~#path_stat~0#1.base, ~#path_stat~0#1.offset);havoc ~#path_stat~0#1.base, ~#path_stat~0#1.offset; [2025-03-04 09:15:40,743 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3652: havoc stat_#t~ret295#1; [2025-03-04 09:15:55,917 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2779: call ULTIMATE.dealloc(getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset);havoc getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset; [2025-03-04 09:15:55,917 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3713: havoc getopt_long_#t~ret328#1; [2025-03-04 09:15:56,317 INFO L? ?]: Removed 1415 outVars from TransFormulas that were not future-live. [2025-03-04 09:15:56,319 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:15:56,353 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:15:56,356 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:15:56,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:15:56 BoogieIcfgContainer [2025-03-04 09:15:56,357 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:15:56,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:15:56,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:15:56,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:15:56,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:15:36" (1/3) ... [2025-03-04 09:15:56,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1308d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:15:56, skipping insertion in model container [2025-03-04 09:15:56,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:15:38" (2/3) ... [2025-03-04 09:15:56,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1308d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:15:56, skipping insertion in model container [2025-03-04 09:15:56,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:15:56" (3/3) ... [2025-03-04 09:15:56,364 INFO L128 eAbstractionObserver]: Analyzing ICFG rm-1.i [2025-03-04 09:15:56,376 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:15:56,379 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rm-1.i that has 16 procedures, 1377 locations, 1 initial locations, 34 loop locations, and 552 error locations. [2025-03-04 09:15:56,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:15:56,430 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;@281f81ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:15:56,430 INFO L334 AbstractCegarLoop]: Starting to check reachability of 552 error locations. [2025-03-04 09:15:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 1377 states, 762 states have (on average 2.0039370078740157) internal successors, (1527), 1317 states have internal predecessors, (1527), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2025-03-04 09:15:56,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-04 09:15:56,440 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:15:56,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-04 09:15:56,441 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr344REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [accessErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 549 more)] === [2025-03-04 09:15:56,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:15:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1725801, now seen corresponding path program 1 times [2025-03-04 09:15:56,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:15:56,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308120699] [2025-03-04 09:15:56,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:15:56,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:15:56,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:15:56,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:15:56,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 09:15:56,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:15:57,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:15:57,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:15:57,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:15:57,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:15:57,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:15:57,821 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 [2025-03-04 09:15:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:15:57,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:15:57,904 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:15:57,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308120699] [2025-03-04 09:15:57,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308120699] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:15:57,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:15:57,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:15:57,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207748727] [2025-03-04 09:15:57,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:15:57,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:15:57,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:15:57,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:15:57,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:15:57,936 INFO L87 Difference]: Start difference. First operand has 1377 states, 762 states have (on average 2.0039370078740157) internal successors, (1527), 1317 states have internal predecessors, (1527), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) 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) [2025-03-04 09:16:02,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 09:16:11,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:16:11,127 INFO L93 Difference]: Finished difference Result 1375 states and 1598 transitions. [2025-03-04 09:16:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:16:11,129 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 [2025-03-04 09:16:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:16:11,138 INFO L225 Difference]: With dead ends: 1375 [2025-03-04 09:16:11,138 INFO L226 Difference]: Without dead ends: 1373 [2025-03-04 09:16:11,139 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 [2025-03-04 09:16:11,141 INFO L435 NwaCegarLoop]: 1236 mSDtfsCounter, 389 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:16:11,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1997 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 603 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2025-03-04 09:16:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2025-03-04 09:16:11,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1209. [2025-03-04 09:16:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 671 states have (on average 1.96274217585693) internal successors, (1317), 1157 states have internal predecessors, (1317), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 09:16:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1401 transitions. [2025-03-04 09:16:11,221 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1401 transitions. Word has length 3 [2025-03-04 09:16:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:16:11,222 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1401 transitions. [2025-03-04 09:16:11,222 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) [2025-03-04 09:16:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1401 transitions. [2025-03-04 09:16:11,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-04 09:16:11,222 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:16:11,222 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-04 09:16:11,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 09:16:11,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:11,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr345REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [accessErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 549 more)] === [2025-03-04 09:16:11,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:16:11,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1725802, now seen corresponding path program 1 times [2025-03-04 09:16:11,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:16:11,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077093733] [2025-03-04 09:16:11,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:16:11,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:11,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:16:11,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:16:11,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 09:16:11,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:16:12,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:16:12,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:16:12,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:16:12,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:16:12,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:16:12,680 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 [2025-03-04 09:16:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:16:12,817 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:16:12,818 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:16:12,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077093733] [2025-03-04 09:16:12,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077093733] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:16:12,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:16:12,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:16:12,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692481644] [2025-03-04 09:16:12,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:16:12,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:16:12,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:16:12,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:16:12,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:16:12,821 INFO L87 Difference]: Start difference. First operand 1209 states and 1401 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) [2025-03-04 09:16:16,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 09:16:26,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:16:26,112 INFO L93 Difference]: Finished difference Result 1208 states and 1400 transitions. [2025-03-04 09:16:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:16:26,114 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 [2025-03-04 09:16:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:16:26,118 INFO L225 Difference]: With dead ends: 1208 [2025-03-04 09:16:26,119 INFO L226 Difference]: Without dead ends: 1208 [2025-03-04 09:16:26,119 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 [2025-03-04 09:16:26,119 INFO L435 NwaCegarLoop]: 1393 mSDtfsCounter, 10 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2025-03-04 09:16:26,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2297 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2025-03-04 09:16:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2025-03-04 09:16:26,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1208. [2025-03-04 09:16:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 671 states have (on average 1.9612518628912072) internal successors, (1316), 1156 states have internal predecessors, (1316), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 09:16:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1400 transitions. [2025-03-04 09:16:26,148 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1400 transitions. Word has length 3 [2025-03-04 09:16:26,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:16:26,148 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1400 transitions. [2025-03-04 09:16:26,148 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) [2025-03-04 09:16:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1400 transitions. [2025-03-04 09:16:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-04 09:16:26,149 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:16:26,149 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 09:16:26,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 09:16:26,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:26,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr341REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [accessErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 549 more)] === [2025-03-04 09:16:26,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:16:26,350 INFO L85 PathProgramCache]: Analyzing trace with hash -124608866, now seen corresponding path program 1 times [2025-03-04 09:16:26,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:16:26,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277058570] [2025-03-04 09:16:26,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:16:26,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:26,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:16:26,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:16:26,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 09:16:26,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 09:16:27,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 09:16:27,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:16:27,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:16:27,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 09:16:27,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:16:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:16:27,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:16:27,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:16:27,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277058570] [2025-03-04 09:16:27,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277058570] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:16:27,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:16:27,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:16:27,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552958911] [2025-03-04 09:16:27,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:16:27,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:16:27,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:16:27,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:16:27,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:16:27,696 INFO L87 Difference]: Start difference. First operand 1208 states and 1400 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) [2025-03-04 09:16:27,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:16:27,855 INFO L93 Difference]: Finished difference Result 1211 states and 1404 transitions. [2025-03-04 09:16:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:16:27,857 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 [2025-03-04 09:16:27,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:16:27,860 INFO L225 Difference]: With dead ends: 1211 [2025-03-04 09:16:27,860 INFO L226 Difference]: Without dead ends: 1211 [2025-03-04 09:16:27,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:16:27,861 INFO L435 NwaCegarLoop]: 1396 mSDtfsCounter, 2 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 09:16:27,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2789 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 09:16:27,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2025-03-04 09:16:27,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1209. [2025-03-04 09:16:27,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 672 states have (on average 1.9598214285714286) internal successors, (1317), 1157 states have internal predecessors, (1317), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 09:16:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1401 transitions. [2025-03-04 09:16:27,882 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1401 transitions. Word has length 6 [2025-03-04 09:16:27,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:16:27,883 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1401 transitions. [2025-03-04 09:16:27,883 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) [2025-03-04 09:16:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1401 transitions. [2025-03-04 09:16:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-04 09:16:27,883 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:16:27,883 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 09:16:27,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 09:16:28,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:28,084 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr343REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [accessErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 549 more)] === [2025-03-04 09:16:28,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:16:28,085 INFO L85 PathProgramCache]: Analyzing trace with hash -124608706, now seen corresponding path program 1 times [2025-03-04 09:16:28,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:16:28,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495031944] [2025-03-04 09:16:28,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:16:28,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:28,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:16:28,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:16:28,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 09:16:28,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 09:16:29,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 09:16:29,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:16:29,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:16:29,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 09:16:29,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:16:29,414 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 [2025-03-04 09:16:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:16:29,865 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:16:29,865 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:16:29,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495031944] [2025-03-04 09:16:29,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495031944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:16:29,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:16:29,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:16:29,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901174633] [2025-03-04 09:16:29,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:16:29,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:16:29,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:16:29,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:16:29,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:16:29,867 INFO L87 Difference]: Start difference. First operand 1209 states and 1401 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) [2025-03-04 09:16:33,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 09:16:37,932 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 [] [2025-03-04 09:16:46,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:16:46,927 INFO L93 Difference]: Finished difference Result 1211 states and 1403 transitions. [2025-03-04 09:16:46,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:16:46,929 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 [2025-03-04 09:16:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:16:46,932 INFO L225 Difference]: With dead ends: 1211 [2025-03-04 09:16:46,932 INFO L226 Difference]: Without dead ends: 1211 [2025-03-04 09:16:46,932 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 [2025-03-04 09:16:46,935 INFO L435 NwaCegarLoop]: 1391 mSDtfsCounter, 11 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2025-03-04 09:16:46,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2297 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 501 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2025-03-04 09:16:46,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2025-03-04 09:16:46,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1210. [2025-03-04 09:16:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 673 states have (on average 1.9583952451708766) internal successors, (1318), 1158 states have internal predecessors, (1318), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 09:16:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1402 transitions. [2025-03-04 09:16:46,959 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1402 transitions. Word has length 6 [2025-03-04 09:16:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:16:46,959 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1402 transitions. [2025-03-04 09:16:46,959 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) [2025-03-04 09:16:46,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1402 transitions. [2025-03-04 09:16:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 09:16:46,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:16:46,960 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:16:47,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 09:16:47,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:47,160 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr341REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [accessErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 549 more)] === [2025-03-04 09:16:47,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:16:47,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1364590203, now seen corresponding path program 1 times [2025-03-04 09:16:47,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:16:47,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254557054] [2025-03-04 09:16:47,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:16:47,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:47,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:16:47,164 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:16:47,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 09:16:47,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:16:48,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:16:48,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:16:48,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:16:48,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:16:48,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:16:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:16:48,555 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 09:16:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:16:48,828 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:16:48,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254557054] [2025-03-04 09:16:48,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254557054] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 09:16:48,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 09:16:48,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-03-04 09:16:48,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998008124] [2025-03-04 09:16:48,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 09:16:48,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:16:48,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:16:48,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:16:48,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:16:48,828 INFO L87 Difference]: Start difference. First operand 1210 states and 1402 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) [2025-03-04 09:16:49,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 09:16:49,289 INFO L93 Difference]: Finished difference Result 1218 states and 1412 transitions. [2025-03-04 09:16:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:16:49,290 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 [2025-03-04 09:16:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 09:16:49,294 INFO L225 Difference]: With dead ends: 1218 [2025-03-04 09:16:49,294 INFO L226 Difference]: Without dead ends: 1218 [2025-03-04 09:16:49,294 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 [2025-03-04 09:16:49,295 INFO L435 NwaCegarLoop]: 1396 mSDtfsCounter, 8 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 09:16:49,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4182 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 09:16:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2025-03-04 09:16:49,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2025-03-04 09:16:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 681 states have (on average 1.9500734214390603) internal successors, (1328), 1166 states have internal predecessors, (1328), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 09:16:49,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1412 transitions. [2025-03-04 09:16:49,318 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1412 transitions. Word has length 9 [2025-03-04 09:16:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 09:16:49,318 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1412 transitions. [2025-03-04 09:16:49,318 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) [2025-03-04 09:16:49,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1412 transitions. [2025-03-04 09:16:49,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 09:16:49,319 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 09:16:49,319 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:16:49,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 09:16:49,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:49,519 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr343REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [accessErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, accessErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 549 more)] === [2025-03-04 09:16:49,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:16:49,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1364590043, now seen corresponding path program 1 times [2025-03-04 09:16:49,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:16:49,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120766137] [2025-03-04 09:16:49,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:16:49,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:16:49,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:16:49,524 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:16:49,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 09:16:49,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:16:50,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:16:50,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:16:50,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:16:50,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 09:16:50,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:16:50,854 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 [2025-03-04 09:16:51,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:16:51,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 09:16:52,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:16:53,000 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:16:53,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120766137] [2025-03-04 09:16:53,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120766137] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 09:16:53,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 09:16:53,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-04 09:16:53,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422433752] [2025-03-04 09:16:53,000 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 09:16:53,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:16:53,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:16:53,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:16:53,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:16:53,004 INFO L87 Difference]: Start difference. First operand 1218 states and 1412 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) [2025-03-04 09:16:57,049 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 [] [2025-03-04 09:17:01,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 09:17:05,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers []