./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.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_4.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 e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ............................................................................................................................. 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_4.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 e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:02:44,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:44,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:44,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:44,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:44,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:44,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:44,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:44,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:44,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:44,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:44,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:44,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:44,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:44,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:44,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:44,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:44,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:44,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:44,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:44,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:44,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:44,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:44,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:44,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:44,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:44,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:44,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:44,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:44,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:44,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:44,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:44,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:44,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:44,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:44,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:44,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:44,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:44,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:44,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:44,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:44,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:02:44,796 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:44,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:44,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:44,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:44,799 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:44,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:44,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:44,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:44,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:44,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:44,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:44,801 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:44,801 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:44,801 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:44,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:44,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:44,802 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:44,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:44,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:44,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:44,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:44,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:44,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:44,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:44,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:44,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:02:44,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:02:44,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:44,805 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 -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2020-10-20 06:02:45,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:45,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:45,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:45,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:45,034 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:45,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-20 06:02:45,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530970ae1/c9d3bd212b5e4682a84fa52cc4d73dd2/FLAG4c9547123 [2020-10-20 06:02:45,692 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:45,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-20 06:02:45,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530970ae1/c9d3bd212b5e4682a84fa52cc4d73dd2/FLAG4c9547123 [2020-10-20 06:02:45,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530970ae1/c9d3bd212b5e4682a84fa52cc4d73dd2 [2020-10-20 06:02:45,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:45,947 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:45,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:45,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:45,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:45,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:45" (1/1) ... [2020-10-20 06:02:45,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9de44b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:45, skipping insertion in model container [2020-10-20 06:02:45,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:45" (1/1) ... [2020-10-20 06:02:45,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:46,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:46,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:46,508 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 06:02:46,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17356039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:46, skipping insertion in model container [2020-10-20 06:02:46,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:46,510 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 06:02:46,513 INFO L168 Benchmark]: Toolchain (without parser) took 570.22 ms. Allocated memory was 34.1 MB in the beginning and 45.1 MB in the end (delta: 11.0 MB). Free memory was 6.4 MB in the beginning and 23.8 MB in the end (delta: -17.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,514 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 12.5 MB in the beginning and 12.4 MB in the end (delta: 73.5 kB). Peak memory consumption was 73.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.48 ms. Allocated memory was 34.1 MB in the beginning and 45.1 MB in the end (delta: 11.0 MB). Free memory was 5.5 MB in the beginning and 23.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 6.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 12.5 MB in the beginning and 12.4 MB in the end (delta: 73.5 kB). Peak memory consumption was 73.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 561.48 ms. Allocated memory was 34.1 MB in the beginning and 45.1 MB in the end (delta: 11.0 MB). Free memory was 5.5 MB in the beginning and 23.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 6.1 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 06:02:48,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:48,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:48,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:48,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:48,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:48,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:48,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:48,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:48,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:48,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:48,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:48,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:48,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:48,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:48,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:48,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:48,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:48,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:48,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:48,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:48,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:48,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:48,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:48,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:48,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:48,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:48,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:48,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:48,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:48,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:48,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:48,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:48,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:48,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:48,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:48,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:48,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:48,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:48,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:48,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:48,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 06:02:48,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:48,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:48,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:48,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:48,604 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:48,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:48,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:48,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:48,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:48,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:48,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:48,607 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:48,607 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:48,608 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:48,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:48,608 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:48,608 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 06:02:48,608 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 06:02:48,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:48,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:48,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:48,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:48,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:48,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:48,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:48,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:48,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:48,611 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 06:02:48,612 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 06:02:48,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:48,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 06:02:48,612 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 -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2020-10-20 06:02:48,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:48,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:48,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:48,877 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:48,877 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:48,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-20 06:02:48,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45f3c571/8aa2a56c5d004d9a94d3130992827e52/FLAG15fec0db8 [2020-10-20 06:02:49,483 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:49,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-20 06:02:49,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45f3c571/8aa2a56c5d004d9a94d3130992827e52/FLAG15fec0db8 [2020-10-20 06:02:49,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45f3c571/8aa2a56c5d004d9a94d3130992827e52 [2020-10-20 06:02:49,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:49,786 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:49,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:49,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:49,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:49,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:49" (1/1) ... [2020-10-20 06:02:49,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3ff1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:49, skipping insertion in model container [2020-10-20 06:02:49,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:49" (1/1) ... [2020-10-20 06:02:49,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:49,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:50,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:50,390 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 06:02:50,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:50,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:50,530 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:02:50,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:50,769 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:02:50,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50 WrapperNode [2020-10-20 06:02:50,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:50,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:02:50,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:02:50,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:02:50,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (1/1) ... [2020-10-20 06:02:50,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (1/1) ... [2020-10-20 06:02:50,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (1/1) ... [2020-10-20 06:02:50,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (1/1) ... [2020-10-20 06:02:50,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (1/1) ... [2020-10-20 06:02:50,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (1/1) ... [2020-10-20 06:02:50,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (1/1) ... [2020-10-20 06:02:50,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:02:50,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:02:50,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:02:50,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:02:50,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (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 06:02:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:02:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:02:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 06:02:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 06:02:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 06:02:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 06:02:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 06:02:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-20 06:02:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-20 06:02:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-20 06:02:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-20 06:02:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-20 06:02:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-20 06:02:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-20 06:02:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-20 06:02:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-20 06:02:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-20 06:02:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-20 06:02:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-20 06:02:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-20 06:02:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-20 06:02:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-20 06:02:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-20 06:02:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-20 06:02:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-20 06:02:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-20 06:02:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-20 06:02:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-20 06:02:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-20 06:02:50,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-20 06:02:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-20 06:02:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-20 06:02:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2020-10-20 06:02:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2020-10-20 06:02:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-20 06:02:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:02:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-20 06:02:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-20 06:02:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-20 06:02:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:02:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:02:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:02:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:02:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:02:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:02:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:02:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:02:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 06:02:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 06:02:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 06:02:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 06:02:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 06:02:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:02:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:02:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:02:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:02:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:02:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:02:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:02:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:02:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:02:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:02:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:02:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:02:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:02:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:02:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:02:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:02:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:02:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:02:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:02:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:02:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:02:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:02:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:02:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:02:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:02:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:02:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:02:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:02:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:02:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:02:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:02:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:02:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:02:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:02:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:02:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:02:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:02:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:02:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:02:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:02:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:02:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:02:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:02:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:02:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:02:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:02:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:02:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:02:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:02:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:02:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:02:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:02:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:02:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:02:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:02:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:02:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:02:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:02:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:02:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:02:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:02:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:02:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:02:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:02:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:02:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:02:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:02:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:02:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:02:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:02:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-20 06:02:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:02:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-20 06:02:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-20 06:02:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-20 06:02:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-20 06:02:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-20 06:02:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:02:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-20 06:02:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-20 06:02:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:02:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-20 06:02:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-20 06:02:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-20 06:02:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:02:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-20 06:02:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-20 06:02:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-20 06:02:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-20 06:02:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-20 06:02:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-20 06:02:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:02:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-20 06:02:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-20 06:02:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-20 06:02:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-20 06:02:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-20 06:02:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 06:02:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 06:02:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-20 06:02:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-20 06:02:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-20 06:02:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-20 06:02:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-20 06:02:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-20 06:02:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-20 06:02:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-20 06:02:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-20 06:02:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-20 06:02:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-20 06:02:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-20 06:02:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-20 06:02:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-20 06:02:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-20 06:02:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-20 06:02:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2020-10-20 06:02:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2020-10-20 06:02:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-20 06:02:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:02:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:02:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:02:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 06:02:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:02:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-20 06:02:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-20 06:02:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-20 06:02:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-20 06:02:51,621 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:52,016 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:52,384 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:02:52,385 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:02:52,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:52 BoogieIcfgContainer [2020-10-20 06:02:52,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:02:52,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:02:52,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:02:52,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:02:52,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:02:49" (1/3) ... [2020-10-20 06:02:52,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d8ed94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:52, skipping insertion in model container [2020-10-20 06:02:52,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:50" (2/3) ... [2020-10-20 06:02:52,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d8ed94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:52, skipping insertion in model container [2020-10-20 06:02:52,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:52" (3/3) ... [2020-10-20 06:02:52,397 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_4.i [2020-10-20 06:02:52,428 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:02:52,437 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2020-10-20 06:02:52,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2020-10-20 06:02:52,473 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:02:52,473 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:02:52,473 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:02:52,473 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:02:52,474 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:02:52,474 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:02:52,474 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:02:52,474 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:02:52,495 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-10-20 06:02:52,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:52,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:52,506 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 06:02:52,507 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 06:02:52,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:52,513 INFO L82 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2020-10-20 06:02:52,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:52,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99839395] [2020-10-20 06:02:52,527 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 06:02:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:52,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:52,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:52,853 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 06:02:52,853 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:52,867 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:52,868 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:52,868 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:52,900 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 06:02:52,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:53,005 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 06:02:53,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99839395] [2020-10-20 06:02:53,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:53,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 06:02:53,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452106598] [2020-10-20 06:02:53,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:53,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:53,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:53,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:53,049 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 5 states. [2020-10-20 06:02:53,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:53,390 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2020-10-20 06:02:53,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:53,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:53,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:53,422 INFO L225 Difference]: With dead ends: 160 [2020-10-20 06:02:53,422 INFO L226 Difference]: Without dead ends: 157 [2020-10-20 06:02:53,424 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 06:02:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-20 06:02:53,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2020-10-20 06:02:53,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-20 06:02:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 162 transitions. [2020-10-20 06:02:53,480 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 162 transitions. Word has length 17 [2020-10-20 06:02:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:53,480 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 162 transitions. [2020-10-20 06:02:53,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2020-10-20 06:02:53,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:53,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:53,482 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 06:02:53,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 06:02:53,701 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 06:02:53,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:53,702 INFO L82 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2020-10-20 06:02:53,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:53,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322326584] [2020-10-20 06:02:53,703 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 06:02:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:53,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:53,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:53,969 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 06:02:53,970 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:53,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:53,977 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:53,977 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:54,020 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 06:02:54,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:54,304 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 06:02:54,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322326584] [2020-10-20 06:02:54,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:54,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 06:02:54,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843783974] [2020-10-20 06:02:54,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:54,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:54,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:54,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:54,308 INFO L87 Difference]: Start difference. First operand 151 states and 162 transitions. Second operand 10 states. [2020-10-20 06:02:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:55,025 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-10-20 06:02:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:55,031 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-20 06:02:55,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:55,035 INFO L225 Difference]: With dead ends: 156 [2020-10-20 06:02:55,036 INFO L226 Difference]: Without dead ends: 156 [2020-10-20 06:02:55,036 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 06:02:55,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-20 06:02:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2020-10-20 06:02:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-20 06:02:55,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2020-10-20 06:02:55,051 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 17 [2020-10-20 06:02:55,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:55,051 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2020-10-20 06:02:55,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2020-10-20 06:02:55,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:55,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:55,052 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 06:02:55,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 06:02:55,256 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 06:02:55,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:55,257 INFO L82 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2020-10-20 06:02:55,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:55,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927232659] [2020-10-20 06:02:55,259 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 06:02:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:55,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:55,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:55,422 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 06:02:55,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:55,457 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 06:02:55,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927232659] [2020-10-20 06:02:55,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:55,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:55,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341910560] [2020-10-20 06:02:55,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:55,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:55,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:55,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:55,460 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 5 states. [2020-10-20 06:02:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:55,485 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2020-10-20 06:02:55,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:55,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:55,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:55,488 INFO L225 Difference]: With dead ends: 150 [2020-10-20 06:02:55,488 INFO L226 Difference]: Without dead ends: 150 [2020-10-20 06:02:55,489 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 06:02:55,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-20 06:02:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2020-10-20 06:02:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-20 06:02:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2020-10-20 06:02:55,512 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 17 [2020-10-20 06:02:55,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:55,513 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2020-10-20 06:02:55,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2020-10-20 06:02:55,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 06:02:55,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:55,514 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] [2020-10-20 06:02:55,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 06:02:55,715 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 06:02:55,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:55,716 INFO L82 PathProgramCache]: Analyzing trace with hash 300911328, now seen corresponding path program 1 times [2020-10-20 06:02:55,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:55,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495256573] [2020-10-20 06:02:55,716 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 06:02:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:55,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:55,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:55,877 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 06:02:55,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:55,947 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 06:02:55,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495256573] [2020-10-20 06:02:55,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:55,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:55,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106042515] [2020-10-20 06:02:55,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:55,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:55,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:55,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:55,950 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 5 states. [2020-10-20 06:02:55,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:55,972 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2020-10-20 06:02:55,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:55,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-20 06:02:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:55,975 INFO L225 Difference]: With dead ends: 150 [2020-10-20 06:02:55,975 INFO L226 Difference]: Without dead ends: 150 [2020-10-20 06:02:55,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 06:02:55,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-20 06:02:55,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2020-10-20 06:02:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-20 06:02:55,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 155 transitions. [2020-10-20 06:02:55,989 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 155 transitions. Word has length 29 [2020-10-20 06:02:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:55,991 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 155 transitions. [2020-10-20 06:02:55,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:55,992 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2020-10-20 06:02:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 06:02:55,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:55,993 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] [2020-10-20 06:02:56,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 06:02:56,194 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 06:02:56,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:56,195 INFO L82 PathProgramCache]: Analyzing trace with hash -696161025, now seen corresponding path program 1 times [2020-10-20 06:02:56,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:56,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120506543] [2020-10-20 06:02:56,195 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 06:02:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:56,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-20 06:02:56,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:56,437 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 06:02:56,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:56,490 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 06:02:56,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120506543] [2020-10-20 06:02:56,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:56,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2020-10-20 06:02:56,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228821966] [2020-10-20 06:02:56,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:02:56,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:56,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:02:56,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:02:56,495 INFO L87 Difference]: Start difference. First operand 148 states and 155 transitions. Second operand 9 states. [2020-10-20 06:02:56,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:56,635 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2020-10-20 06:02:56,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:02:56,636 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-20 06:02:56,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:56,637 INFO L225 Difference]: With dead ends: 168 [2020-10-20 06:02:56,638 INFO L226 Difference]: Without dead ends: 168 [2020-10-20 06:02:56,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:02:56,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-20 06:02:56,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2020-10-20 06:02:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-20 06:02:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 169 transitions. [2020-10-20 06:02:56,665 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 169 transitions. Word has length 29 [2020-10-20 06:02:56,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:56,665 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 169 transitions. [2020-10-20 06:02:56,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:02:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 169 transitions. [2020-10-20 06:02:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 06:02:56,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:56,667 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 06:02:56,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 06:02:56,883 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 06:02:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:56,883 INFO L82 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2020-10-20 06:02:56,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:56,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022129818] [2020-10-20 06:02:56,884 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 06:02:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:57,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:02:57,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:57,051 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 06:02:57,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:57,102 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 06:02:57,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022129818] [2020-10-20 06:02:57,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:57,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 06:02:57,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826772309] [2020-10-20 06:02:57,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:02:57,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:57,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:02:57,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:02:57,104 INFO L87 Difference]: Start difference. First operand 162 states and 169 transitions. Second operand 6 states. [2020-10-20 06:02:57,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:57,153 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2020-10-20 06:02:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:57,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-20 06:02:57,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:57,156 INFO L225 Difference]: With dead ends: 168 [2020-10-20 06:02:57,156 INFO L226 Difference]: Without dead ends: 164 [2020-10-20 06:02:57,156 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 06:02:57,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-20 06:02:57,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-20 06:02:57,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-20 06:02:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2020-10-20 06:02:57,165 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 32 [2020-10-20 06:02:57,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:57,165 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2020-10-20 06:02:57,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:02:57,166 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2020-10-20 06:02:57,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:02:57,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:57,167 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 06:02:57,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 06:02:57,381 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 06:02:57,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:57,382 INFO L82 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2020-10-20 06:02:57,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:57,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097110199] [2020-10-20 06:02:57,383 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 06:02:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:57,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:57,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:57,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097110199] [2020-10-20 06:02:57,557 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:57,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1144893205] [2020-10-20 06:02:57,557 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 06:02:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:57,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:57,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:57,879 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 06:02:57,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:58,004 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 06:02:58,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:02:58,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-20 06:02:58,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812305200] [2020-10-20 06:02:58,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:58,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:58,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:58,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:58,006 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand 10 states. [2020-10-20 06:02:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:58,208 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2020-10-20 06:02:58,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:02:58,210 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-20 06:02:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:58,213 INFO L225 Difference]: With dead ends: 172 [2020-10-20 06:02:58,213 INFO L226 Difference]: Without dead ends: 168 [2020-10-20 06:02:58,214 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 06:02:58,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-20 06:02:58,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-10-20 06:02:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-20 06:02:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 175 transitions. [2020-10-20 06:02:58,221 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 175 transitions. Word has length 34 [2020-10-20 06:02:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:58,222 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 175 transitions. [2020-10-20 06:02:58,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 175 transitions. [2020-10-20 06:02:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:02:58,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:58,223 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 06:02:58,629 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 06:02:58,632 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 06:02:58,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:58,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2020-10-20 06:02:58,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:58,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218248768] [2020-10-20 06:02:58,633 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 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 06:02:58,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:02:58,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:02:58,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:02:58,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:58,800 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 06:02:58,800 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:58,804 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:58,804 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:58,805 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:58,992 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 06:02:58,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:59,065 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 06:02:59,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218248768] [2020-10-20 06:02:59,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:59,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:02:59,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157329390] [2020-10-20 06:02:59,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:02:59,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:59,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:02:59,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:02:59,079 INFO L87 Difference]: Start difference. First operand 168 states and 175 transitions. Second operand 12 states. [2020-10-20 06:03:00,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:03:00,100 INFO L93 Difference]: Finished difference Result 179 states and 185 transitions. [2020-10-20 06:03:00,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:03:00,101 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-20 06:03:00,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:03:00,103 INFO L225 Difference]: With dead ends: 179 [2020-10-20 06:03:00,103 INFO L226 Difference]: Without dead ends: 179 [2020-10-20 06:03:00,104 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 06:03:00,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-20 06:03:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2020-10-20 06:03:00,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-20 06:03:00,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2020-10-20 06:03:00,110 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 38 [2020-10-20 06:03:00,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:03:00,110 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2020-10-20 06:03:00,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:03:00,111 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2020-10-20 06:03:00,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:03:00,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:03:00,112 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 06:03:00,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-20 06:03:00,320 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 06:03:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:03:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2020-10-20 06:03:00,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:03:00,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225823349] [2020-10-20 06:03:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 06:03:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:00,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:03:00,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:00,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225823349] [2020-10-20 06:03:00,487 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:00,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1874748608] [2020-10-20 06:03:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:03:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:00,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:03:00,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:00,837 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:00,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734457658] [2020-10-20 06:03:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:03:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:00,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 06:03:00,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:01,020 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 06:03:01,021 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:03:01,025 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:03:01,026 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:03:01,026 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:03:01,384 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 06:03:01,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:03:02,477 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 06:03:02,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:03:02,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:03:02,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263332826] [2020-10-20 06:03:02,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:03:02,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:03:02,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:03:02,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-10-20 06:03:02,479 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 23 states. [2020-10-20 06:03:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:03:05,414 INFO L93 Difference]: Finished difference Result 228 states and 237 transitions. [2020-10-20 06:03:05,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:03:05,415 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 38 [2020-10-20 06:03:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:03:05,416 INFO L225 Difference]: With dead ends: 228 [2020-10-20 06:03:05,416 INFO L226 Difference]: Without dead ends: 228 [2020-10-20 06:03:05,417 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 06:03:05,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-20 06:03:05,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 166. [2020-10-20 06:03:05,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-20 06:03:05,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 173 transitions. [2020-10-20 06:03:05,424 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 173 transitions. Word has length 38 [2020-10-20 06:03:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:03:05,424 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 173 transitions. [2020-10-20 06:03:05,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:03:05,425 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 173 transitions. [2020-10-20 06:03:05,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-20 06:03:05,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:03:05,427 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, 1, 1, 1, 1] [2020-10-20 06:03:06,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2020-10-20 06:03:06,032 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 06:03:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:03:06,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1347385061, now seen corresponding path program 1 times [2020-10-20 06:03:06,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:03:06,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897691258] [2020-10-20 06:03:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-20 06:03:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:06,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:03:06,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:06,243 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 06:03:06,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:03:06,315 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 06:03:06,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897691258] [2020-10-20 06:03:06,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:03:06,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-20 06:03:06,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266155092] [2020-10-20 06:03:06,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:03:06,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:03:06,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:03:06,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:03:06,318 INFO L87 Difference]: Start difference. First operand 166 states and 173 transitions. Second operand 7 states. [2020-10-20 06:03:06,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:03:06,378 INFO L93 Difference]: Finished difference Result 175 states and 182 transitions. [2020-10-20 06:03:06,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:03:06,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-10-20 06:03:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:03:06,380 INFO L225 Difference]: With dead ends: 175 [2020-10-20 06:03:06,380 INFO L226 Difference]: Without dead ends: 175 [2020-10-20 06:03:06,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 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 06:03:06,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-20 06:03:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2020-10-20 06:03:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-20 06:03:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2020-10-20 06:03:06,387 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 40 [2020-10-20 06:03:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:03:06,387 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2020-10-20 06:03:06,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:03:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2020-10-20 06:03:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:03:06,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:03:06,388 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, 1, 1] [2020-10-20 06:03:06,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-20 06:03:06,590 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 06:03:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:03:06,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1156201438, now seen corresponding path program 1 times [2020-10-20 06:03:06,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:03:06,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653911496] [2020-10-20 06:03:06,592 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 06:03:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:06,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:03:06,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:06,718 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 06:03:06,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:03:06,856 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 06:03:06,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653911496] [2020-10-20 06:03:06,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:03:06,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 06:03:06,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389453603] [2020-10-20 06:03:06,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:03:06,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:03:06,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:03:06,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:03:06,858 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand 3 states. [2020-10-20 06:03:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:03:07,036 INFO L93 Difference]: Finished difference Result 182 states and 188 transitions. [2020-10-20 06:03:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:03:07,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-10-20 06:03:07,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:03:07,039 INFO L225 Difference]: With dead ends: 182 [2020-10-20 06:03:07,039 INFO L226 Difference]: Without dead ends: 156 [2020-10-20 06:03:07,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 06:03:07,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-20 06:03:07,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 148. [2020-10-20 06:03:07,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-20 06:03:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 154 transitions. [2020-10-20 06:03:07,047 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 154 transitions. Word has length 38 [2020-10-20 06:03:07,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:03:07,047 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 154 transitions. [2020-10-20 06:03:07,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:03:07,048 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 154 transitions. [2020-10-20 06:03:07,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:03:07,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:03:07,050 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 06:03:07,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-20 06:03:07,260 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 06:03:07,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:03:07,262 INFO L82 PathProgramCache]: Analyzing trace with hash -2052714108, now seen corresponding path program 1 times [2020-10-20 06:03:07,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:03:07,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700124088] [2020-10-20 06:03:07,263 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 06:03:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:07,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:03:07,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:07,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700124088] [2020-10-20 06:03:07,437 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:07,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [500798046] [2020-10-20 06:03:07,437 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 06:03:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:07,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:03:07,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:07,768 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:07,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75271495] [2020-10-20 06:03:07,768 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 06:03:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:07,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:03:07,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:07,934 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 06:03:07,934 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:03:07,937 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:03:07,937 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:03:07,938 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:03:08,187 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 06:03:08,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:03:08,278 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 06:03:08,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:03:08,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:03:08,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201213176] [2020-10-20 06:03:08,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:03:08,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:03:08,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:03:08,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:03:08,281 INFO L87 Difference]: Start difference. First operand 148 states and 154 transitions. Second operand 12 states. [2020-10-20 06:03:09,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:03:09,116 INFO L93 Difference]: Finished difference Result 158 states and 163 transitions. [2020-10-20 06:03:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:03:09,117 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-20 06:03:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:03:09,118 INFO L225 Difference]: With dead ends: 158 [2020-10-20 06:03:09,118 INFO L226 Difference]: Without dead ends: 158 [2020-10-20 06:03:09,119 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 06:03:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-20 06:03:09,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-10-20 06:03:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-20 06:03:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 152 transitions. [2020-10-20 06:03:09,123 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 152 transitions. Word has length 43 [2020-10-20 06:03:09,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:03:09,124 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 152 transitions. [2020-10-20 06:03:09,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:03:09,124 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 152 transitions. [2020-10-20 06:03:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:03:09,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:03:09,125 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 06:03:09,731 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 06:03:09,732 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 06:03:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:03:09,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2052714107, now seen corresponding path program 1 times [2020-10-20 06:03:09,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:03:09,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320698331] [2020-10-20 06:03:09,734 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 06:03:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:09,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:03:09,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:09,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320698331] [2020-10-20 06:03:09,897 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:09,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1694015185] [2020-10-20 06:03:09,897 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 06:03:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:10,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:03:10,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:10,241 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:10,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44946708] [2020-10-20 06:03:10,242 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 06:03:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:10,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 06:03:10,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:10,417 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 06:03:10,417 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:03:10,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:03:10,424 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:03:10,425 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:03:10,873 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 06:03:10,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:03:11,899 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 06:03:11,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:03:11,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:03:11,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941334697] [2020-10-20 06:03:11,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:03:11,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:03:11,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:03:11,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2020-10-20 06:03:11,901 INFO L87 Difference]: Start difference. First operand 146 states and 152 transitions. Second operand 23 states. [2020-10-20 06:03:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:03:14,321 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2020-10-20 06:03:14,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:03:14,321 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2020-10-20 06:03:14,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:03:14,322 INFO L225 Difference]: With dead ends: 144 [2020-10-20 06:03:14,323 INFO L226 Difference]: Without dead ends: 144 [2020-10-20 06:03:14,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2020-10-20 06:03:14,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-20 06:03:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-20 06:03:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-20 06:03:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 150 transitions. [2020-10-20 06:03:14,328 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 150 transitions. Word has length 43 [2020-10-20 06:03:14,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:03:14,329 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 150 transitions. [2020-10-20 06:03:14,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:03:14,329 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 150 transitions. [2020-10-20 06:03:14,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-20 06:03:14,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:03:14,330 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, 1, 1] [2020-10-20 06:03:14,940 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 06:03:14,941 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 06:03:14,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:03:14,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1044501987, now seen corresponding path program 1 times [2020-10-20 06:03:14,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:03:14,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364546263] [2020-10-20 06:03:14,943 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 06:03:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:15,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:03:15,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:15,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364546263] [2020-10-20 06:03:15,115 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:15,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2049578174] [2020-10-20 06:03:15,115 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 06:03:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:15,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:03:15,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:15,422 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:15,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046620543] [2020-10-20 06:03:15,422 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 06:03:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:03:15,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:03:15,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:03:15,565 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:03:15,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:03:15,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 06:03:15,565 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 06:03:15,565 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:03:16,172 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 06:03:16,179 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-20 06:03:16,187 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 06:03:16,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:03:16 BoogieIcfgContainer [2020-10-20 06:03:16,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:03:16,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:03:16,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:03:16,188 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:03:16,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:52" (3/4) ... [2020-10-20 06:03:16,192 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:03:16,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:03:16,194 INFO L168 Benchmark]: Toolchain (without parser) took 26413.34 ms. Allocated memory was 35.7 MB in the beginning and 125.8 MB in the end (delta: 90.2 MB). Free memory was 14.0 MB in the beginning and 15.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 88.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:03:16,194 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 43.9 kB). Peak memory consumption was 43.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:03:16,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.25 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.1 MB in the beginning and 19.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:03:16,195 INFO L168 Benchmark]: Boogie Preprocessor took 125.20 ms. Allocated memory is still 46.7 MB. Free memory was 19.9 MB in the beginning and 14.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:03:16,196 INFO L168 Benchmark]: RCFGBuilder took 1490.53 ms. Allocated memory was 46.7 MB in the beginning and 57.7 MB in the end (delta: 11.0 MB). Free memory was 14.5 MB in the beginning and 11.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:03:16,196 INFO L168 Benchmark]: TraceAbstraction took 23798.39 ms. Allocated memory was 57.7 MB in the beginning and 125.8 MB in the end (delta: 68.2 MB). Free memory was 10.6 MB in the beginning and 15.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 62.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:03:16,197 INFO L168 Benchmark]: Witness Printer took 4.55 ms. Allocated memory is still 125.8 MB. Free memory is still 15.8 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:03:16,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 43.9 kB). Peak memory consumption was 43.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 984.25 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.1 MB in the beginning and 19.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 125.20 ms. Allocated memory is still 46.7 MB. Free memory was 19.9 MB in the beginning and 14.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1490.53 ms. Allocated memory was 46.7 MB in the beginning and 57.7 MB in the end (delta: 11.0 MB). Free memory was 14.5 MB in the beginning and 11.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 23798.39 ms. Allocated memory was 57.7 MB in the beginning and 125.8 MB in the end (delta: 68.2 MB). Free memory was 10.6 MB in the beginning and 15.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 62.9 MB. Max. memory is 14.3 GB. * Witness Printer took 4.55 ms. Allocated memory is still 125.8 MB. Free memory is still 15.8 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) }; [L770] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] 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; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_get(kobj) [L758] 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 49 procedures, 341 locations, 71 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 23.7s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1865 SDtfs, 671 SDslu, 9719 SDs, 0 SdLazy, 3653 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 986 GetRequests, 831 SyntacticMatches, 17 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred 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, 119 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 415 NumberOfCodeBlocks, 409 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 804 ConstructedInterpolants, 52 QuantifiedInterpolants, 98935 SizeOfPredicates, 51 NumberOfNonLiveVariables, 1857 ConjunctsInSsa, 141 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 168/174 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...