./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/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_1.3.100.v20150511-1540.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/ldv-memsafety/memleaks_test22_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 32bit --witnessprinter.graph.data.programhash 577bc449dc1bd07ff03d533463a99a048a746b45 ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/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_1.3.100.v20150511-1540.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/ldv-memsafety/memleaks_test22_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 32bit --witnessprinter.graph.data.programhash 577bc449dc1bd07ff03d533463a99a048a746b45 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:02:17,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:17,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:18,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:18,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:18,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:18,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:18,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:18,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:18,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:18,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:18,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:18,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:18,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:18,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:18,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:18,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:18,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:18,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:18,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:18,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:18,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:18,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:18,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:18,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:18,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:18,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:18,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:18,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:18,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:18,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:18,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:18,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:18,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:18,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:18,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:18,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:18,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:18,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:18,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:18,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:18,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:02:18,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:18,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:18,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:18,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:18,125 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:18,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:18,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:18,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:18,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:18,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:18,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:18,127 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:18,127 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:18,127 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:18,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:18,128 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:18,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:18,128 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:18,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:18,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:18,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:18,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:18,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:18,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:18,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:18,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:02:18,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:02:18,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:18,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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.graphml 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577bc449dc1bd07ff03d533463a99a048a746b45 [2020-10-20 06:02:18,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:18,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:18,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:18,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:18,348 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:18,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2020-10-20 06:02:18,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1953c331f/a9a8097e438a4c2bb092e4f862f4babc/FLAG77ddc0044 [2020-10-20 06:02:18,988 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:18,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2020-10-20 06:02:19,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1953c331f/a9a8097e438a4c2bb092e4f862f4babc/FLAG77ddc0044 [2020-10-20 06:02:19,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1953c331f/a9a8097e438a4c2bb092e4f862f4babc [2020-10-20 06:02:19,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:19,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:19,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:19,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:19,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:19,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:19" (1/1) ... [2020-10-20 06:02:19,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614acc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:19, skipping insertion in model container [2020-10-20 06:02:19,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:19" (1/1) ... [2020-10-20 06:02:19,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:19,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:19,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:19,826 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-20 06:02:19,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16389d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:19, skipping insertion in model container [2020-10-20 06:02:19,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:19,828 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 06:02:19,831 INFO L168 Benchmark]: Toolchain (without parser) took 582.67 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 13.2 MB in the beginning and 24.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:19,832 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 34.1 MB. Free memory was 9.9 MB in the beginning and 9.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:02:19,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.42 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 12.3 MB in the beginning and 24.1 MB in the end (delta: -11.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:19,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 34.1 MB. Free memory was 9.9 MB in the beginning and 9.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 574.42 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 12.3 MB in the beginning and 24.1 MB in the end (delta: -11.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:02:21,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:21,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:21,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:21,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:21,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:21,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:21,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:21,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:21,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:21,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:21,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:21,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:21,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:21,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:21,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:21,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:21,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:21,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:21,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:21,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:21,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:21,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:21,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:21,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:21,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:21,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:21,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:21,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:21,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:21,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:21,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:21,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:21,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:21,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:21,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:21,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:21,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:21,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:21,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:21,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:21,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 06:02:21,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:21,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:21,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:21,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:21,973 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:21,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:21,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:21,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:21,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:21,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:21,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:21,976 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:21,976 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:21,977 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:21,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:21,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:21,977 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 06:02:21,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 06:02:21,978 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:21,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:21,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:21,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:21,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:21,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:21,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:21,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:21,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:21,980 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 06:02:21,981 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 06:02:21,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:21,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 06:02:21,981 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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.graphml 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577bc449dc1bd07ff03d533463a99a048a746b45 [2020-10-20 06:02:22,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:22,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:22,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:22,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:22,224 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:22,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2020-10-20 06:02:22,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0a94566/746bcf39516d46e5b9ad5b7b7467b686/FLAG24aa3f412 [2020-10-20 06:02:22,854 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:22,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2020-10-20 06:02:22,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0a94566/746bcf39516d46e5b9ad5b7b7467b686/FLAG24aa3f412 [2020-10-20 06:02:23,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0a94566/746bcf39516d46e5b9ad5b7b7467b686 [2020-10-20 06:02:23,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:23,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:23,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:23,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:23,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:23,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:23" (1/1) ... [2020-10-20 06:02:23,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267a16a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:23, skipping insertion in model container [2020-10-20 06:02:23,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:23" (1/1) ... [2020-10-20 06:02:23,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:23,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:23,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:23,835 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 06:02:23,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:23,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:23,911 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:02:23,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:24,073 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:02:24,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24 WrapperNode [2020-10-20 06:02:24,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:24,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:02:24,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:02:24,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:02:24,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... [2020-10-20 06:02:24,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... [2020-10-20 06:02:24,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... [2020-10-20 06:02:24,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... [2020-10-20 06:02:24,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... [2020-10-20 06:02:24,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... [2020-10-20 06:02:24,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... [2020-10-20 06:02:24,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:02:24,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:02:24,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:02:24,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:02:24,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:02:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:02:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 06:02:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 06:02:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 06:02:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 06:02:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 06:02:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-20 06:02:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-20 06:02:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-20 06:02:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-20 06:02:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-20 06:02:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-20 06:02:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-20 06:02:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-20 06:02:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-20 06:02:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-20 06:02:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-20 06:02:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-20 06:02:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-20 06:02:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-20 06:02:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-20 06:02:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-20 06:02:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-20 06:02:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-20 06:02:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-20 06:02:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-20 06:02:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-20 06:02:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-20 06:02:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-20 06:02:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-20 06:02:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-20 06:02:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:02:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-20 06:02:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-20 06:02:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-20 06:02:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:02:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:02:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:02:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:02:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:02:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:02:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:02:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:02:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:02:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:02:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:02:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:02:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:02:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:02:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:02:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:02:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 06:02:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 06:02:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 06:02:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 06:02:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 06:02:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:02:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:02:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:02:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:02:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:02:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:02:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:02:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:02:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:02:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:02:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:02:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:02:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:02:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:02:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:02:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:02:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:02:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:02:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:02:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:02:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:02:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:02:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:02:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:02:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:02:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:02:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:02:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:02:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:02:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:02:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:02:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:02:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:02:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:02:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:02:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:02:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:02:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:02:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:02:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:02:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:02:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:02:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:02:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:02:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:02:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:02:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:02:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:02:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:02:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:02:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:02:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:02:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:02:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:02:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:02:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:02:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:02:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:02:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:02:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:02:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:02:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:02:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:02:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:02:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:02:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:02:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:02:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:02:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:02:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:02:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:02:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:02:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:02:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:02:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:02:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:02:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:02:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:02:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:02:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:02:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:02:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:02:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:02:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:02:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:02:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:02:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-20 06:02:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:02:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-20 06:02:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-20 06:02:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-20 06:02:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-20 06:02:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-20 06:02:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:02:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-20 06:02:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-20 06:02:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:02:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-20 06:02:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-20 06:02:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-20 06:02:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:02:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-20 06:02:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-20 06:02:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-20 06:02:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-20 06:02:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-20 06:02:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-20 06:02:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:02:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-20 06:02:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-20 06:02:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-20 06:02:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-20 06:02:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-20 06:02:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 06:02:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 06:02:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-20 06:02:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-20 06:02:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-20 06:02:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-20 06:02:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-20 06:02:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-20 06:02:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-20 06:02:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-20 06:02:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-20 06:02:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-20 06:02:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-20 06:02:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-20 06:02:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-20 06:02:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-20 06:02:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-20 06:02:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-20 06:02:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-20 06:02:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:02:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:02:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:02:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 06:02:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:02:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-20 06:02:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-20 06:02:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-20 06:02:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-20 06:02:24,994 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:25,334 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:25,658 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:02:25,659 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:02:25,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:25 BoogieIcfgContainer [2020-10-20 06:02:25,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:02:25,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:02:25,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:02:25,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:02:25,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:02:23" (1/3) ... [2020-10-20 06:02:25,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e1fc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:25, skipping insertion in model container [2020-10-20 06:02:25,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:24" (2/3) ... [2020-10-20 06:02:25,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e1fc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:25, skipping insertion in model container [2020-10-20 06:02:25,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:25" (3/3) ... [2020-10-20 06:02:25,671 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-2.i [2020-10-20 06:02:25,685 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:02:25,694 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2020-10-20 06:02:25,711 INFO L253 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2020-10-20 06:02:25,733 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:02:25,734 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:02:25,734 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:02:25,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:02:25,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:02:25,735 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:02:25,735 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:02:25,735 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:02:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-10-20 06:02:25,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:25,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:25,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:25,788 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:25,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:25,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1536723929, now seen corresponding path program 1 times [2020-10-20 06:02:25,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:25,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682647054] [2020-10-20 06:02:25,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:25,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:26,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:26,083 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 [2020-10-20 06:02:26,083 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:26,095 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:26,095 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:26,096 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682647054] [2020-10-20 06:02:26,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:26,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 06:02:26,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441182483] [2020-10-20 06:02:26,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:26,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:26,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:26,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:26,241 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 5 states. [2020-10-20 06:02:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:26,612 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2020-10-20 06:02:26,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:26,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:26,638 INFO L225 Difference]: With dead ends: 157 [2020-10-20 06:02:26,639 INFO L226 Difference]: Without dead ends: 154 [2020-10-20 06:02:26,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:26,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-20 06:02:26,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2020-10-20 06:02:26,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-20 06:02:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 160 transitions. [2020-10-20 06:02:26,734 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 160 transitions. Word has length 17 [2020-10-20 06:02:26,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:26,734 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 160 transitions. [2020-10-20 06:02:26,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:26,735 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 160 transitions. [2020-10-20 06:02:26,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:26,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:26,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:26,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 06:02:26,948 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:26,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:26,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1536723928, now seen corresponding path program 1 times [2020-10-20 06:02:26,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:26,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219567362] [2020-10-20 06:02:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:27,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:27,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:27,137 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 [2020-10-20 06:02:27,138 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:27,145 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:27,145 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:27,146 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:27,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219567362] [2020-10-20 06:02:27,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:27,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 06:02:27,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657311921] [2020-10-20 06:02:27,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:27,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:27,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:27,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:27,504 INFO L87 Difference]: Start difference. First operand 148 states and 160 transitions. Second operand 10 states. [2020-10-20 06:02:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:28,145 INFO L93 Difference]: Finished difference Result 153 states and 165 transitions. [2020-10-20 06:02:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:28,147 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-20 06:02:28,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:28,149 INFO L225 Difference]: With dead ends: 153 [2020-10-20 06:02:28,149 INFO L226 Difference]: Without dead ends: 153 [2020-10-20 06:02:28,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:02:28,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-20 06:02:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 148. [2020-10-20 06:02:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-20 06:02:28,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 159 transitions. [2020-10-20 06:02:28,161 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 159 transitions. Word has length 17 [2020-10-20 06:02:28,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:28,161 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 159 transitions. [2020-10-20 06:02:28,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:28,161 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2020-10-20 06:02:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:28,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:28,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:28,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,365 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:28,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1508094778, now seen corresponding path program 1 times [2020-10-20 06:02:28,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:28,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164703046] [2020-10-20 06:02:28,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:28,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:28,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164703046] [2020-10-20 06:02:28,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:28,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:28,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599953166] [2020-10-20 06:02:28,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:28,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:28,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:28,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:28,591 INFO L87 Difference]: Start difference. First operand 148 states and 159 transitions. Second operand 5 states. [2020-10-20 06:02:28,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:28,640 INFO L93 Difference]: Finished difference Result 147 states and 156 transitions. [2020-10-20 06:02:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:28,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:28,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:28,643 INFO L225 Difference]: With dead ends: 147 [2020-10-20 06:02:28,643 INFO L226 Difference]: Without dead ends: 147 [2020-10-20 06:02:28,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-20 06:02:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2020-10-20 06:02:28,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-20 06:02:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2020-10-20 06:02:28,664 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 17 [2020-10-20 06:02:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:28,665 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2020-10-20 06:02:28,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:28,666 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2020-10-20 06:02:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 06:02:28,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:28,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:28,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,893 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:28,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:28,893 INFO L82 PathProgramCache]: Analyzing trace with hash 819266671, now seen corresponding path program 1 times [2020-10-20 06:02:28,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:28,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799537046] [2020-10-20 06:02:28,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:29,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:29,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:29,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:29,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799537046] [2020-10-20 06:02:29,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:29,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:29,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59824230] [2020-10-20 06:02:29,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:29,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:29,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:29,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:29,136 INFO L87 Difference]: Start difference. First operand 145 states and 154 transitions. Second operand 5 states. [2020-10-20 06:02:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:29,160 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2020-10-20 06:02:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:29,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 06:02:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:29,162 INFO L225 Difference]: With dead ends: 147 [2020-10-20 06:02:29,162 INFO L226 Difference]: Without dead ends: 147 [2020-10-20 06:02:29,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-20 06:02:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2020-10-20 06:02:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-20 06:02:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2020-10-20 06:02:29,173 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 27 [2020-10-20 06:02:29,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:29,173 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2020-10-20 06:02:29,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2020-10-20 06:02:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 06:02:29,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:29,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:29,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 06:02:29,395 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:29,395 INFO L82 PathProgramCache]: Analyzing trace with hash 308732494, now seen corresponding path program 1 times [2020-10-20 06:02:29,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:29,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41801467] [2020-10-20 06:02:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:29,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:29,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:29,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:29,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41801467] [2020-10-20 06:02:29,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:29,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-20 06:02:29,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877563654] [2020-10-20 06:02:29,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:02:29,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:29,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:02:29,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:29,648 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand 7 states. [2020-10-20 06:02:29,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:29,709 INFO L93 Difference]: Finished difference Result 162 states and 172 transitions. [2020-10-20 06:02:29,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:02:29,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-20 06:02:29,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:29,712 INFO L225 Difference]: With dead ends: 162 [2020-10-20 06:02:29,712 INFO L226 Difference]: Without dead ends: 162 [2020-10-20 06:02:29,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:02:29,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-20 06:02:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 154. [2020-10-20 06:02:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-20 06:02:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 162 transitions. [2020-10-20 06:02:29,723 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 162 transitions. Word has length 27 [2020-10-20 06:02:29,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:29,723 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 162 transitions. [2020-10-20 06:02:29,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:02:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 162 transitions. [2020-10-20 06:02:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 06:02:29,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:29,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:29,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 06:02:29,938 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:29,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:29,939 INFO L82 PathProgramCache]: Analyzing trace with hash -609527379, now seen corresponding path program 1 times [2020-10-20 06:02:29,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:29,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545758860] [2020-10-20 06:02:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:30,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:02:30,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:30,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:30,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:30,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:30,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545758860] [2020-10-20 06:02:30,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:30,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 06:02:30,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189866015] [2020-10-20 06:02:30,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:02:30,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:30,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:02:30,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:02:30,181 INFO L87 Difference]: Start difference. First operand 154 states and 162 transitions. Second operand 6 states. [2020-10-20 06:02:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:30,218 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2020-10-20 06:02:30,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:30,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-20 06:02:30,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:30,224 INFO L225 Difference]: With dead ends: 160 [2020-10-20 06:02:30,224 INFO L226 Difference]: Without dead ends: 156 [2020-10-20 06:02:30,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:30,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-20 06:02:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-10-20 06:02:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-20 06:02:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 164 transitions. [2020-10-20 06:02:30,241 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 164 transitions. Word has length 32 [2020-10-20 06:02:30,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:30,241 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 164 transitions. [2020-10-20 06:02:30,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:02:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 164 transitions. [2020-10-20 06:02:30,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:02:30,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:30,243 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:30,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 06:02:30,455 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:30,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:30,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1756995251, now seen corresponding path program 1 times [2020-10-20 06:02:30,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:30,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129661901] [2020-10-20 06:02:30,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:30,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:30,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:30,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129661901] [2020-10-20 06:02:30,605 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:30,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2063899315] [2020-10-20 06:02:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:30,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:30,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:31,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:31,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:02:31,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-20 06:02:31,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682903495] [2020-10-20 06:02:31,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:31,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:31,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:31,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:31,139 INFO L87 Difference]: Start difference. First operand 156 states and 164 transitions. Second operand 10 states. [2020-10-20 06:02:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:31,360 INFO L93 Difference]: Finished difference Result 164 states and 174 transitions. [2020-10-20 06:02:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:02:31,371 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-20 06:02:31,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:31,373 INFO L225 Difference]: With dead ends: 164 [2020-10-20 06:02:31,373 INFO L226 Difference]: Without dead ends: 160 [2020-10-20 06:02:31,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:02:31,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-20 06:02:31,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-20 06:02:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-20 06:02:31,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2020-10-20 06:02:31,383 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 34 [2020-10-20 06:02:31,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:31,384 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2020-10-20 06:02:31,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:31,384 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2020-10-20 06:02:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-20 06:02:31,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:31,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:31,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk,8 mathsat -unsat_core_generation=3 [2020-10-20 06:02:31,789 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:31,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:31,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1330547251, now seen corresponding path program 1 times [2020-10-20 06:02:31,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:31,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790818531] [2020-10-20 06:02:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:31,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:31,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:31,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:32,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:32,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790818531] [2020-10-20 06:02:32,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:32,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-20 06:02:32,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637307961] [2020-10-20 06:02:32,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:02:32,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:32,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:02:32,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:32,026 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand 7 states. [2020-10-20 06:02:32,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:32,087 INFO L93 Difference]: Finished difference Result 171 states and 181 transitions. [2020-10-20 06:02:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:02:32,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-20 06:02:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:32,089 INFO L225 Difference]: With dead ends: 171 [2020-10-20 06:02:32,089 INFO L226 Difference]: Without dead ends: 171 [2020-10-20 06:02:32,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:02:32,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-20 06:02:32,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2020-10-20 06:02:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-20 06:02:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2020-10-20 06:02:32,096 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 36 [2020-10-20 06:02:32,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:32,097 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 176 transitions. [2020-10-20 06:02:32,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:02:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 176 transitions. [2020-10-20 06:02:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:02:32,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:32,099 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:32,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-20 06:02:32,301 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:32,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1177798515, now seen corresponding path program 2 times [2020-10-20 06:02:32,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:32,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414763439] [2020-10-20 06:02:32,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:32,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:02:32,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:02:32,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:02:32,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:32,454 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 [2020-10-20 06:02:32,455 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:32,457 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:32,457 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:32,457 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:32,644 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:32,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:32,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414763439] [2020-10-20 06:02:32,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:32,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:02:32,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795327177] [2020-10-20 06:02:32,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:02:32,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:32,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:02:32,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:02:32,713 INFO L87 Difference]: Start difference. First operand 167 states and 176 transitions. Second operand 12 states. [2020-10-20 06:02:33,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:33,732 INFO L93 Difference]: Finished difference Result 190 states and 207 transitions. [2020-10-20 06:02:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:02:33,734 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-20 06:02:33,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:33,735 INFO L225 Difference]: With dead ends: 190 [2020-10-20 06:02:33,736 INFO L226 Difference]: Without dead ends: 190 [2020-10-20 06:02:33,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:02:33,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-20 06:02:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 166. [2020-10-20 06:02:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-20 06:02:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 175 transitions. [2020-10-20 06:02:33,751 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 175 transitions. Word has length 38 [2020-10-20 06:02:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:33,752 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 175 transitions. [2020-10-20 06:02:33,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:02:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 175 transitions. [2020-10-20 06:02:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:02:33,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:33,754 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:33,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-20 06:02:33,957 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:33,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:33,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1177798514, now seen corresponding path program 1 times [2020-10-20 06:02:33,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:33,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689134008] [2020-10-20 06:02:33,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:34,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:34,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:34,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689134008] [2020-10-20 06:02:34,124 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:34,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1957374688] [2020-10-20 06:02:34,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:34,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:34,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:34,470 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:34,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220351631] [2020-10-20 06:02:34,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:34,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 06:02:34,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:34,653 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 [2020-10-20 06:02:34,653 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:34,659 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:34,659 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:34,659 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:35,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:36,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:36,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:02:36,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042778528] [2020-10-20 06:02:36,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:02:36,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:36,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:02:36,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-10-20 06:02:36,069 INFO L87 Difference]: Start difference. First operand 166 states and 175 transitions. Second operand 23 states. [2020-10-20 06:02:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:38,835 INFO L93 Difference]: Finished difference Result 169 states and 177 transitions. [2020-10-20 06:02:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:02:38,836 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 38 [2020-10-20 06:02:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:38,837 INFO L225 Difference]: With dead ends: 169 [2020-10-20 06:02:38,837 INFO L226 Difference]: Without dead ends: 169 [2020-10-20 06:02:38,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-10-20 06:02:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-20 06:02:38,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2020-10-20 06:02:38,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-20 06:02:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2020-10-20 06:02:38,845 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 38 [2020-10-20 06:02:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:38,845 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2020-10-20 06:02:38,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:02:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-10-20 06:02:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-20 06:02:38,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:38,847 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:39,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2020-10-20 06:02:39,461 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:39,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:39,462 INFO L82 PathProgramCache]: Analyzing trace with hash 44869055, now seen corresponding path program 1 times [2020-10-20 06:02:39,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:39,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515052164] [2020-10-20 06:02:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:39,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:02:39,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 06:02:39,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 06:02:39,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515052164] [2020-10-20 06:02:39,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:39,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 06:02:39,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507995636] [2020-10-20 06:02:39,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:02:39,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:39,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:02:39,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:02:39,769 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 3 states. [2020-10-20 06:02:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:39,961 INFO L93 Difference]: Finished difference Result 176 states and 185 transitions. [2020-10-20 06:02:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:02:39,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-10-20 06:02:39,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:39,963 INFO L225 Difference]: With dead ends: 176 [2020-10-20 06:02:39,963 INFO L226 Difference]: Without dead ends: 153 [2020-10-20 06:02:39,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:02:39,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-20 06:02:39,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 145. [2020-10-20 06:02:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-20 06:02:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 152 transitions. [2020-10-20 06:02:39,969 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 152 transitions. Word has length 39 [2020-10-20 06:02:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:39,970 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 152 transitions. [2020-10-20 06:02:39,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:02:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 152 transitions. [2020-10-20 06:02:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:02:39,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:39,972 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:40,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-20 06:02:40,182 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:40,183 INFO L82 PathProgramCache]: Analyzing trace with hash 133997426, now seen corresponding path program 1 times [2020-10-20 06:02:40,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:40,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586344984] [2020-10-20 06:02:40,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:40,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:40,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:40,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586344984] [2020-10-20 06:02:40,360 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:40,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1292089399] [2020-10-20 06:02:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:40,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:40,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:40,697 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:40,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673505655] [2020-10-20 06:02:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:40,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:40,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:40,846 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 [2020-10-20 06:02:40,846 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:40,848 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:40,849 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:40,849 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:41,105 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:41,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:41,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:41,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:02:41,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872144773] [2020-10-20 06:02:41,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:02:41,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:41,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:02:41,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:02:41,183 INFO L87 Difference]: Start difference. First operand 145 states and 152 transitions. Second operand 12 states. [2020-10-20 06:02:42,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:42,070 INFO L93 Difference]: Finished difference Result 167 states and 182 transitions. [2020-10-20 06:02:42,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:02:42,070 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-20 06:02:42,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:42,073 INFO L225 Difference]: With dead ends: 167 [2020-10-20 06:02:42,073 INFO L226 Difference]: Without dead ends: 167 [2020-10-20 06:02:42,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-10-20 06:02:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-20 06:02:42,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 143. [2020-10-20 06:02:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-20 06:02:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 150 transitions. [2020-10-20 06:02:42,080 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 150 transitions. Word has length 43 [2020-10-20 06:02:42,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:42,081 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 150 transitions. [2020-10-20 06:02:42,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:02:42,081 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 150 transitions. [2020-10-20 06:02:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:02:42,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:42,082 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:42,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:42,688 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:42,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:42,689 INFO L82 PathProgramCache]: Analyzing trace with hash 133997427, now seen corresponding path program 1 times [2020-10-20 06:02:42,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:42,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145778876] [2020-10-20 06:02:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:42,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:42,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:42,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145778876] [2020-10-20 06:02:42,858 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:42,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [54557940] [2020-10-20 06:02:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:43,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:43,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:43,178 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:43,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549685516] [2020-10-20 06:02:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:43,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 06:02:43,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:43,338 INFO L384 Elim1Store]: Elim1 did not use preprocessing 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 [2020-10-20 06:02:43,339 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:43,344 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:43,345 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:43,345 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:43,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:44,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:44,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:02:44,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646097965] [2020-10-20 06:02:44,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:02:44,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:44,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:02:44,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2020-10-20 06:02:44,564 INFO L87 Difference]: Start difference. First operand 143 states and 150 transitions. Second operand 23 states. [2020-10-20 06:02:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:46,984 INFO L93 Difference]: Finished difference Result 141 states and 148 transitions. [2020-10-20 06:02:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:02:46,984 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2020-10-20 06:02:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:46,986 INFO L225 Difference]: With dead ends: 141 [2020-10-20 06:02:46,986 INFO L226 Difference]: Without dead ends: 141 [2020-10-20 06:02:46,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2020-10-20 06:02:46,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-20 06:02:46,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-10-20 06:02:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-20 06:02:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2020-10-20 06:02:46,993 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 43 [2020-10-20 06:02:46,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:46,993 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2020-10-20 06:02:46,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:02:46,994 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2020-10-20 06:02:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-20 06:02:46,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:46,995 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:47,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:47,608 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:47,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:47,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1181144304, now seen corresponding path program 1 times [2020-10-20 06:02:47,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:47,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813750967] [2020-10-20 06:02:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:47,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:47,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:47,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813750967] [2020-10-20 06:02:47,794 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:47,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1998632681] [2020-10-20 06:02:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:48,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:48,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:48,107 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:48,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582302946] [2020-10-20 06:02:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:48,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:48,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:48,267 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:48,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:48,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 06:02:48,267 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 06:02:48,267 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:02:48,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:48,878 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-20 06:02:48,887 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 06:02:48,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:02:48 BoogieIcfgContainer [2020-10-20 06:02:48,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:02:48,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:02:48,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:02:48,888 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:02:48,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:25" (3/4) ... [2020-10-20 06:02:48,892 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:02:48,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:02:48,894 INFO L168 Benchmark]: Toolchain (without parser) took 25747.96 ms. Allocated memory was 33.6 MB in the beginning and 125.8 MB in the end (delta: 92.3 MB). Free memory was 8.4 MB in the beginning and 92.7 MB in the end (delta: -84.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:48,895 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 32.5 MB. Free memory was 17.0 MB in the beginning and 16.9 MB in the end (delta: 39.8 kB). Peak memory consumption was 39.8 kB. Max. memory is 14.3 GB. [2020-10-20 06:02:48,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 922.35 ms. Allocated memory was 33.6 MB in the beginning and 46.1 MB in the end (delta: 12.6 MB). Free memory was 7.4 MB in the beginning and 26.4 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:48,896 INFO L168 Benchmark]: Boogie Preprocessor took 100.81 ms. Allocated memory is still 46.1 MB. Free memory was 26.4 MB in the beginning and 21.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:48,896 INFO L168 Benchmark]: RCFGBuilder took 1485.90 ms. Allocated memory was 46.1 MB in the beginning and 54.5 MB in the end (delta: 8.4 MB). Free memory was 21.2 MB in the beginning and 14.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:48,897 INFO L168 Benchmark]: TraceAbstraction took 23224.40 ms. Allocated memory was 54.5 MB in the beginning and 125.8 MB in the end (delta: 71.3 MB). Free memory was 14.2 MB in the beginning and 92.7 MB in the end (delta: -78.6 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:02:48,897 INFO L168 Benchmark]: Witness Printer took 4.80 ms. Allocated memory is still 125.8 MB. Free memory is still 92.7 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:02:48,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 32.5 MB. Free memory was 17.0 MB in the beginning and 16.9 MB in the end (delta: 39.8 kB). Peak memory consumption was 39.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 922.35 ms. Allocated memory was 33.6 MB in the beginning and 46.1 MB in the end (delta: 12.6 MB). Free memory was 7.4 MB in the beginning and 26.4 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 100.81 ms. Allocated memory is still 46.1 MB. Free memory was 26.4 MB in the beginning and 21.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1485.90 ms. Allocated memory was 46.1 MB in the beginning and 54.5 MB in the end (delta: 8.4 MB). Free memory was 21.2 MB in the beginning and 14.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 23224.40 ms. Allocated memory was 54.5 MB in the beginning and 125.8 MB in the end (delta: 71.3 MB). Free memory was 14.2 MB in the beginning and 92.7 MB in the end (delta: -78.6 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 4.80 ms. Allocated memory is still 125.8 MB. Free memory is still 92.7 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L765] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND TRUE !kobj [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] v->counter - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 334 locations, 71 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 23.1s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1805 SDtfs, 684 SDslu, 8463 SDs, 0 SdLazy, 3510 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 971 GetRequests, 819 SyntacticMatches, 17 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 87 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 408 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 790 ConstructedInterpolants, 52 QuantifiedInterpolants, 98285 SizeOfPredicates, 49 NumberOfNonLiveVariables, 1829 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 176/182 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...