./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer --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 bb53649e57c73811eb036860baf1102917fa8259 ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer --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 bb53649e57c73811eb036860baf1102917fa8259 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:45:06,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:45:06,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:45:06,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:45:06,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:45:06,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:45:06,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:45:06,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:45:06,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:45:06,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:45:06,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:45:06,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:45:06,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:45:06,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:45:06,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:45:06,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:45:06,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:45:06,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:45:06,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:45:06,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:45:06,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:45:06,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:45:06,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:45:06,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:45:06,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:45:06,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:45:06,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:45:06,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:45:06,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:45:06,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:45:06,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:45:06,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:45:06,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:45:06,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:45:06,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:45:06,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:45:06,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:45:06,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:45:06,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:45:06,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:45:06,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:45:06,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 12:45:06,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:45:06,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:45:06,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:45:06,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:45:06,893 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:45:06,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 12:45:06,894 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:45:06,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:45:06,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:45:06,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:45:06,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:45:06,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:45:06,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:45:06,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:45:06,896 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer 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 -> bb53649e57c73811eb036860baf1102917fa8259 [2019-12-07 12:45:07,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:45:07,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:45:07,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:45:07,019 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:45:07,019 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:45:07,020 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-12-07 12:45:07,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/e43c530c7/35fd43819f1b49cc953a6c4a3143e845/FLAG1b395271a [2019-12-07 12:45:07,450 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:45:07,451 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-12-07 12:45:07,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/e43c530c7/35fd43819f1b49cc953a6c4a3143e845/FLAG1b395271a [2019-12-07 12:45:07,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/e43c530c7/35fd43819f1b49cc953a6c4a3143e845 [2019-12-07 12:45:07,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:45:07,477 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 12:45:07,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:45:07,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:45:07,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:45:07,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:45:07" (1/1) ... [2019-12-07 12:45:07,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee0b347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:07, skipping insertion in model container [2019-12-07 12:45:07,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:45:07" (1/1) ... [2019-12-07 12:45:07,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:45:07,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:45:07,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:45:07,802 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) [2019-12-07 12:45:07,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f3c026c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:07, skipping insertion in model container [2019-12-07 12:45:07,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:45:07,803 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 12:45:07,805 INFO L168 Benchmark]: Toolchain (without parser) took 327.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:45:07,805 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:45:07,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:45:07,807 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 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-f470102 [2019-12-07 12:45:08,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:45:08,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:45:08,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:45:08,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:45:08,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:45:08,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:45:08,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:45:08,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:45:08,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:45:08,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:45:08,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:45:08,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:45:08,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:45:08,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:45:08,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:45:08,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:45:08,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:45:08,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:45:08,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:45:08,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:45:08,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:45:08,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:45:08,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:45:08,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:45:08,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:45:08,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:45:08,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:45:08,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:45:08,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:45:08,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:45:08,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:45:08,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:45:08,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:45:08,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:45:08,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:45:08,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:45:08,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:45:08,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:45:08,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:45:08,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:45:08,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 12:45:08,976 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:45:08,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:45:08,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:45:08,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:45:08,978 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:45:08,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:45:08,978 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:45:08,978 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:45:08,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:45:08,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:45:08,979 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:45:08,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:45:08,980 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:45:08,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:45:08,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:45:08,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:45:08,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:45:08,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:45:08,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:45:08,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:45:08,981 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:45:08,981 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:45:08,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:45:08,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:45:08,981 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer 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 -> bb53649e57c73811eb036860baf1102917fa8259 [2019-12-07 12:45:09,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:45:09,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:45:09,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:45:09,167 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:45:09,167 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:45:09,168 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-12-07 12:45:09,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/253ff70c7/614005d8dbe84cd3b3023a75ad1555fa/FLAG86ba38794 [2019-12-07 12:45:09,609 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:45:09,609 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-12-07 12:45:09,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/253ff70c7/614005d8dbe84cd3b3023a75ad1555fa/FLAG86ba38794 [2019-12-07 12:45:09,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/data/253ff70c7/614005d8dbe84cd3b3023a75ad1555fa [2019-12-07 12:45:09,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:45:09,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 12:45:09,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:45:09,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:45:09,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:45:09,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:45:09" (1/1) ... [2019-12-07 12:45:09,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656ee44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:09, skipping insertion in model container [2019-12-07 12:45:09,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:45:09" (1/1) ... [2019-12-07 12:45:09,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:45:09,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:45:09,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:45:09,964 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:45:09,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:45:10,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:45:10,014 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:45:10,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:45:10,102 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:45:10,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10 WrapperNode [2019-12-07 12:45:10,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:45:10,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:45:10,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:45:10,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:45:10,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... [2019-12-07 12:45:10,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... [2019-12-07 12:45:10,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... [2019-12-07 12:45:10,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... [2019-12-07 12:45:10,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... [2019-12-07 12:45:10,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... [2019-12-07 12:45:10,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... [2019-12-07 12:45:10,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:45:10,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:45:10,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:45:10,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:45:10,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-12-07 12:45:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-12-07 12:45:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-12-07 12:45:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-12-07 12:45:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-12-07 12:45:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 12:45:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 12:45:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 12:45:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 12:45:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 12:45:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 12:45:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 12:45:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 12:45:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 12:45:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-12-07 12:45:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 12:45:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-12-07 12:45:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-12-07 12:45:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 12:45:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:45:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 12:45:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:45:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 12:45:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-12-07 12:45:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-12-07 12:45:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-12-07 12:45:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-12-07 12:45:10,554 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 12:45:10,797 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 12:45:11,082 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:45:11,083 INFO L287 CfgBuilder]: Removed 3 assume(true) statements. [2019-12-07 12:45:11,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:45:11 BoogieIcfgContainer [2019-12-07 12:45:11,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:45:11,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:45:11,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:45:11,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:45:11,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:45:09" (1/3) ... [2019-12-07 12:45:11,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac75ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:45:11, skipping insertion in model container [2019-12-07 12:45:11,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:45:10" (2/3) ... [2019-12-07 12:45:11,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac75ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:45:11, skipping insertion in model container [2019-12-07 12:45:11,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:45:11" (3/3) ... [2019-12-07 12:45:11,088 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2019-12-07 12:45:11,095 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:45:11,100 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2019-12-07 12:45:11,108 INFO L249 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2019-12-07 12:45:11,120 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:45:11,120 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 12:45:11,121 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:45:11,121 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:45:11,121 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:45:11,121 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:45:11,121 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:45:11,121 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:45:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-12-07 12:45:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:45:11,138 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:45:11,139 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:45:11,139 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:45:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:45:11,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1086874314, now seen corresponding path program 1 times [2019-12-07 12:45:11,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:45:11,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304378423] [2019-12-07 12:45:11,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:45:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:45:11,291 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:45:11,295 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:45:11,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:11,331 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:45:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:11,402 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304378423] [2019-12-07 12:45:11,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:45:11,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 12:45:11,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284817441] [2019-12-07 12:45:11,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:45:11,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:45:11,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:45:11,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:45:11,421 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 5 states. [2019-12-07 12:45:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:45:11,537 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2019-12-07 12:45:11,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:45:11,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 12:45:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:45:11,545 INFO L225 Difference]: With dead ends: 67 [2019-12-07 12:45:11,546 INFO L226 Difference]: Without dead ends: 64 [2019-12-07 12:45:11,547 INFO L630 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 [2019-12-07 12:45:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-12-07 12:45:11,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2019-12-07 12:45:11,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-12-07 12:45:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2019-12-07 12:45:11,577 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2019-12-07 12:45:11,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:45:11,577 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2019-12-07 12:45:11,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:45:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2019-12-07 12:45:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:45:11,578 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:45:11,579 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:45:11,779 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:45:11,780 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:45:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:45:11,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1465282647, now seen corresponding path program 1 times [2019-12-07 12:45:11,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:45:11,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292672643] [2019-12-07 12:45:11,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:45:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:45:11,875 INFO L264 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 12:45:11,877 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:45:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:11,883 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:45:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:11,929 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292672643] [2019-12-07 12:45:11,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:45:11,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:45:11,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692684872] [2019-12-07 12:45:11,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:45:11,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:45:11,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:45:11,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:45:11,932 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 3 states. [2019-12-07 12:45:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:45:12,005 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2019-12-07 12:45:12,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:45:12,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-07 12:45:12,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:45:12,007 INFO L225 Difference]: With dead ends: 64 [2019-12-07 12:45:12,007 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 12:45:12,008 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:45:12,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 12:45:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2019-12-07 12:45:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-12-07 12:45:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2019-12-07 12:45:12,016 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2019-12-07 12:45:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:45:12,016 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-12-07 12:45:12,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:45:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2019-12-07 12:45:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:45:12,018 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:45:12,018 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:45:12,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:45:12,220 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:45:12,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:45:12,221 INFO L82 PathProgramCache]: Analyzing trace with hash -666992135, now seen corresponding path program 1 times [2019-12-07 12:45:12,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:45:12,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147476336] [2019-12-07 12:45:12,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:45:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:45:12,506 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:45:12,508 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:45:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:12,519 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:45:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:12,535 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147476336] [2019-12-07 12:45:12,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:45:12,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:45:12,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973203985] [2019-12-07 12:45:12,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:45:12,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:45:12,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:45:12,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:45:12,537 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 6 states. [2019-12-07 12:45:12,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:45:12,597 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2019-12-07 12:45:12,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:45:12,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-12-07 12:45:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:45:12,598 INFO L225 Difference]: With dead ends: 98 [2019-12-07 12:45:12,598 INFO L226 Difference]: Without dead ends: 98 [2019-12-07 12:45:12,599 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:45:12,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-12-07 12:45:12,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2019-12-07 12:45:12,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-12-07 12:45:12,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2019-12-07 12:45:12,605 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2019-12-07 12:45:12,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:45:12,606 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2019-12-07 12:45:12,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:45:12,606 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2019-12-07 12:45:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 12:45:12,606 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:45:12,607 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:45:12,807 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:45:12,808 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:45:12,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:45:12,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788241, now seen corresponding path program 1 times [2019-12-07 12:45:12,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:45:12,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774184154] [2019-12-07 12:45:12,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:45:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:45:12,942 INFO L264 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 12:45:12,943 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:45:12,966 INFO L377 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 [2019-12-07 12:45:12,967 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:12,969 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:12,969 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:45:12,970 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 12:45:13,031 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:13,032 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-12-07 12:45:13,033 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:13,049 INFO L614 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-12-07 12:45:13,050 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 12:45:13,050 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-12-07 12:45:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:13,071 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:45:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:15,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774184154] [2019-12-07 12:45:15,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:45:15,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-12-07 12:45:15,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331383844] [2019-12-07 12:45:15,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 12:45:15,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:45:15,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 12:45:15,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-12-07 12:45:15,457 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 13 states. [2019-12-07 12:45:30,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:45:30,669 INFO L93 Difference]: Finished difference Result 147 states and 181 transitions. [2019-12-07 12:45:30,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 12:45:30,670 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-12-07 12:45:30,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:45:30,671 INFO L225 Difference]: With dead ends: 147 [2019-12-07 12:45:30,672 INFO L226 Difference]: Without dead ends: 147 [2019-12-07 12:45:30,672 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=66, Invalid=239, Unknown=1, NotChecked=0, Total=306 [2019-12-07 12:45:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-12-07 12:45:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 73. [2019-12-07 12:45:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-12-07 12:45:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 100 transitions. [2019-12-07 12:45:30,680 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 100 transitions. Word has length 23 [2019-12-07 12:45:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:45:30,680 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 100 transitions. [2019-12-07 12:45:30,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 12:45:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 100 transitions. [2019-12-07 12:45:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 12:45:30,681 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:45:30,681 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:45:30,882 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:45:30,883 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:45:30,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:45:30,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788242, now seen corresponding path program 1 times [2019-12-07 12:45:30,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:45:30,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570741512] [2019-12-07 12:45:30,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:45:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:45:31,031 INFO L264 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 20 conjunts are in the unsatisfiable core [2019-12-07 12:45:31,033 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:45:31,044 INFO L377 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 [2019-12-07 12:45:31,044 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:31,050 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:31,053 INFO L377 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 [2019-12-07 12:45:31,053 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:31,058 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:31,059 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:45:31,059 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 12:45:33,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 12:45:33,158 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-12-07 12:45:33,158 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:33,171 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:33,179 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:33,179 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-12-07 12:45:33,180 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:33,190 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:33,191 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:45:33,191 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-12-07 12:45:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:33,212 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:45:33,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:45:33,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:45:33,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:45:33,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:45:39,410 WARN L192 SmtUtils]: Spent 5.42 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-12-07 12:45:39,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:45:43,842 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-12-07 12:45:45,871 INFO L430 ElimStorePlain]: Different costs {1=[|v_#valid_184|], 2=[|v_#length_144|]} [2019-12-07 12:45:45,877 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 12:45:45,877 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:45,886 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:45,887 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 12:45:45,887 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:45,895 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:45,895 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:45:45,895 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-12-07 12:45:46,396 INFO L430 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-12-07 12:45:46,402 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 12:45:46,402 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:46,417 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:46,419 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 12:45:46,419 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:45:46,433 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:45:46,433 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 12:45:46,433 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-12-07 12:45:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:45:46,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570741512] [2019-12-07 12:45:46,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:45:46,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-12-07 12:45:46,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813593629] [2019-12-07 12:45:46,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 12:45:46,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:45:46,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 12:45:46,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=261, Unknown=2, NotChecked=0, Total=306 [2019-12-07 12:45:46,545 INFO L87 Difference]: Start difference. First operand 73 states and 100 transitions. Second operand 18 states. [2019-12-07 12:45:54,992 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (forall ((|v_ldv_malloc_#t~malloc12.base_24| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse1 (_ bv4 32)))) (or (bvule .cse0 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_24| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4)) (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)) (not (bvule (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_23| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))))) (not (bvule (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse1) .cse0)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_24|) (_ bv0 1))))))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|)) is different from false [2019-12-07 12:46:12,800 WARN L192 SmtUtils]: Spent 6.18 s on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-12-07 12:46:13,266 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2019-12-07 12:46:31,596 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2019-12-07 12:46:33,776 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 21 [2019-12-07 12:46:43,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:46:43,082 INFO L93 Difference]: Finished difference Result 155 states and 192 transitions. [2019-12-07 12:46:43,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 12:46:43,083 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2019-12-07 12:46:43,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:46:43,085 INFO L225 Difference]: With dead ends: 155 [2019-12-07 12:46:43,085 INFO L226 Difference]: Without dead ends: 155 [2019-12-07 12:46:43,085 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 35.0s TimeCoverageRelationStatistics Valid=156, Invalid=774, Unknown=4, NotChecked=58, Total=992 [2019-12-07 12:46:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-12-07 12:46:43,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 79. [2019-12-07 12:46:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-12-07 12:46:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2019-12-07 12:46:43,092 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 23 [2019-12-07 12:46:43,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:46:43,092 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2019-12-07 12:46:43,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 12:46:43,092 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2019-12-07 12:46:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 12:46:43,093 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:46:43,093 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:46:43,293 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:46:43,294 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:46:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:46:43,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1125229616, now seen corresponding path program 1 times [2019-12-07 12:46:43,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:46:43,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577106853] [2019-12-07 12:46:43,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:46:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:46:43,373 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:46:43,374 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:46:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:46:43,396 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:46:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 12:46:43,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577106853] [2019-12-07 12:46:43,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 12:46:43,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-12-07 12:46:43,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40625415] [2019-12-07 12:46:43,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:46:43,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:46:43,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:46:43,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:46:43,424 INFO L87 Difference]: Start difference. First operand 79 states and 108 transitions. Second operand 5 states. [2019-12-07 12:46:43,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:46:43,463 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2019-12-07 12:46:43,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:46:43,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-12-07 12:46:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:46:43,465 INFO L225 Difference]: With dead ends: 54 [2019-12-07 12:46:43,465 INFO L226 Difference]: Without dead ends: 52 [2019-12-07 12:46:43,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:46:43,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-07 12:46:43,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-07 12:46:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 12:46:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2019-12-07 12:46:43,470 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 23 [2019-12-07 12:46:43,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:46:43,470 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2019-12-07 12:46:43,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:46:43,470 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2019-12-07 12:46:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:46:43,471 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:46:43,471 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:46:43,671 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 12:46:43,673 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:46:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:46:43,674 INFO L82 PathProgramCache]: Analyzing trace with hash -475603747, now seen corresponding path program 1 times [2019-12-07 12:46:43,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:46:43,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757475265] [2019-12-07 12:46:43,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:46:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:46:43,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:46:43,840 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:46:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 12:46:43,852 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:46:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 12:46:43,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757475265] [2019-12-07 12:46:43,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:46:43,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 12:46:43,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744314487] [2019-12-07 12:46:43,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:46:43,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:46:43,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:46:43,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:46:43,873 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 5 states. [2019-12-07 12:46:43,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:46:43,908 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2019-12-07 12:46:43,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:46:43,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 12:46:43,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:46:43,909 INFO L225 Difference]: With dead ends: 88 [2019-12-07 12:46:43,909 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 12:46:43,909 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:46:43,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 12:46:43,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 58. [2019-12-07 12:46:43,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 12:46:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2019-12-07 12:46:43,913 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 25 [2019-12-07 12:46:43,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:46:43,913 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2019-12-07 12:46:43,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:46:43,913 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2019-12-07 12:46:43,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:46:43,914 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:46:43,914 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:46:44,115 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 12:46:44,117 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:46:44,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:46:44,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1267206588, now seen corresponding path program 1 times [2019-12-07 12:46:44,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:46:44,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937358945] [2019-12-07 12:46:44,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 12:46:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:46:44,230 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:46:44,231 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:46:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 12:46:44,242 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:46:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 12:46:44,261 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937358945] [2019-12-07 12:46:44,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:46:44,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:46:44,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436693711] [2019-12-07 12:46:44,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:46:44,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:46:44,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:46:44,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:46:44,262 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand 6 states. [2019-12-07 12:46:44,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:46:44,316 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2019-12-07 12:46:44,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:46:44,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-07 12:46:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:46:44,318 INFO L225 Difference]: With dead ends: 62 [2019-12-07 12:46:44,318 INFO L226 Difference]: Without dead ends: 62 [2019-12-07 12:46:44,318 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:46:44,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-12-07 12:46:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2019-12-07 12:46:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-12-07 12:46:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2019-12-07 12:46:44,321 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 25 [2019-12-07 12:46:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:46:44,321 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2019-12-07 12:46:44,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:46:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2019-12-07 12:46:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 12:46:44,322 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:46:44,322 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:46:44,523 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 12:46:44,524 INFO L410 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 12:46:44,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:46:44,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1985214815, now seen corresponding path program 1 times [2019-12-07 12:46:44,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:46:44,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146987886] [2019-12-07 12:46:44,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6412bfc-e790-4c96-bcb9-1e2dbc9be742/bin/uautomizer/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 [2019-12-07 12:46:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:46:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:46:44,682 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 12:46:44,682 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:46:44,883 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 12:46:44,892 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 12:46:44,897 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 7bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-12-07 12:46:44,897 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-12-07 12:46:44,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:46:44 BoogieIcfgContainer [2019-12-07 12:46:44,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:46:44,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:46:44,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:46:44,906 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:46:44,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:45:11" (3/4) ... [2019-12-07 12:46:44,909 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:46:44,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:46:44,910 INFO L168 Benchmark]: Toolchain (without parser) took 95277.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 947.0 MB in the beginning and 957.7 MB in the end (delta: -10.7 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:46:44,910 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:46:44,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:46:44,911 INFO L168 Benchmark]: Boogie Preprocessor took 62.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:46:44,912 INFO L168 Benchmark]: RCFGBuilder took 918.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 942.6 MB in the end (delta: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:46:44,912 INFO L168 Benchmark]: TraceAbstraction took 93820.98 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 85.5 MB). Free memory was 942.6 MB in the beginning and 957.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:46:44,913 INFO L168 Benchmark]: Witness Printer took 3.47 ms. Allocated memory is still 1.2 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:46:44,914 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 469.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 918.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 942.6 MB in the end (delta: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 93820.98 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 85.5 MB). Free memory was 942.6 MB in the beginning and 957.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.47 ms. Allocated memory is still 1.2 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 7bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 778]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 778. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={3:0}] [L779] CALL entry_point() VAL [ldv_global_msg_list={3:0}] [L761] int len = 10; VAL [ldv_global_msg_list={3:0}, len=10] [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={3:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=40, \result={1:0}, ldv_global_msg_list={3:0}, malloc(size)={1:0}, size=40] [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={3:0}, ldv_malloc(sizeof(struct A18*)*len)={1:0}, len=10] [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; VAL [array={1:0}, i=0, ldv_global_msg_list={3:0}, len=10] [L766] COND FALSE !(!array) VAL [array={1:0}, i=0, ldv_global_msg_list={3:0}, len=10] [L767] COND TRUE i=0) VAL [array={1:0}, i=0, j=4294967295, ldv_global_msg_list={3:0}, len=10, p={0:0}] [L779] RET entry_point() VAL [ldv_global_msg_list={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 351 locations, 78 error locations. Result: UNSAFE, OverallTime: 93.7s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 72.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 410 SDtfs, 746 SDslu, 1407 SDs, 0 SdLazy, 990 SolverSat, 141 SolverUnsat, 29 SolverUnknown, 0 SolverNotchecked, 51.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 356 GetRequests, 284 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 37.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 249 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 28 QuantifiedInterpolants, 35184 SizeOfPredicates, 20 NumberOfNonLiveVariables, 739 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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...