./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.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_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 0c4d407f41629f864eb5689f703f67280cbb5237 ............................................................................................................................ 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_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 0c4d407f41629f864eb5689f703f67280cbb5237 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:05:54,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:05:54,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:05:54,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:05:54,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:05:54,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:05:54,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:05:54,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:05:54,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:05:54,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:05:54,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:05:54,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:05:54,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:05:54,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:05:54,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:05:54,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:05:54,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:05:54,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:05:54,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:05:54,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:05:54,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:05:54,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:05:54,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:05:54,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:05:54,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:05:54,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:05:54,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:05:54,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:05:54,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:05:54,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:05:54,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:05:54,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:05:54,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:05:54,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:05:54,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:05:54,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:05:54,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:05:54,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:05:54,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:05:54,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:05:54,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:05:54,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 17:05:54,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:05:54,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:05:54,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:05:54,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:05:54,179 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:05:54,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:05:54,179 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:05:54,179 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:05:54,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:05:54,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:05:54,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:05:54,180 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:05:54,180 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:05:54,180 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:05:54,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:05:54,180 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:05:54,180 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:05:54,181 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:05:54,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:05:54,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:05:54,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:05:54,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:05:54,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:05:54,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:05:54,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:05:54,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:05:54,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:05:54,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:05:54,182 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_30cfe827-dfc9-4b14-83b0-582f896479d7/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 -> 0c4d407f41629f864eb5689f703f67280cbb5237 [2019-12-07 17:05:54,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:05:54,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:05:54,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:05:54,293 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:05:54,293 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:05:54,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2019-12-07 17:05:54,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/ebc62df1c/bf52d040258f41cc8d75562c8797d03c/FLAG29aac4c4c [2019-12-07 17:05:54,735 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:05:54,736 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2019-12-07 17:05:54,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/ebc62df1c/bf52d040258f41cc8d75562c8797d03c/FLAG29aac4c4c [2019-12-07 17:05:54,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/ebc62df1c/bf52d040258f41cc8d75562c8797d03c [2019-12-07 17:05:54,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:05:54,759 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:05:54,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:54,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:05:54,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:05:54,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:54" (1/1) ... [2019-12-07 17:05:54,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d34426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:54, skipping insertion in model container [2019-12-07 17:05:54,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:54" (1/1) ... [2019-12-07 17:05:54,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:05:54,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:05:55,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:55,049 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 17:05:55,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21541d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:55, skipping insertion in model container [2019-12-07 17:05:55,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:55,050 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 17:05:55,051 INFO L168 Benchmark]: Toolchain (without parser) took 291.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:05:55,052 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:05:55,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:05:55,053 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 18.3 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 17:05:56,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:05:56,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:05:56,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:05:56,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:05:56,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:05:56,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:05:56,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:05:56,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:05:56,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:05:56,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:05:56,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:05:56,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:05:56,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:05:56,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:05:56,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:05:56,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:05:56,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:05:56,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:05:56,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:05:56,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:05:56,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:05:56,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:05:56,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:05:56,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:05:56,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:05:56,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:05:56,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:05:56,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:05:56,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:05:56,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:05:56,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:05:56,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:05:56,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:05:56,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:05:56,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:05:56,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:05:56,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:05:56,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:05:56,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:05:56,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:05:56,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 17:05:56,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:05:56,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:05:56,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:05:56,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:05:56,237 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:05:56,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:05:56,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:05:56,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:05:56,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:05:56,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:05:56,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:05:56,238 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:05:56,238 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:05:56,238 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:05:56,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:05:56,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:05:56,239 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:05:56,239 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:05:56,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:05:56,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:05:56,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:05:56,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:05:56,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:05:56,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:05:56,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:05:56,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:05:56,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:05:56,241 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 17:05:56,241 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:05:56,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:05:56,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:05:56,242 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_30cfe827-dfc9-4b14-83b0-582f896479d7/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 -> 0c4d407f41629f864eb5689f703f67280cbb5237 [2019-12-07 17:05:56,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:05:56,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:05:56,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:05:56,441 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:05:56,442 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:05:56,442 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2019-12-07 17:05:56,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/869a2e60c/085a9dddbbad45b38dd94b2b16f71f64/FLAGad62d274f [2019-12-07 17:05:56,926 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:05:56,927 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2019-12-07 17:05:56,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/869a2e60c/085a9dddbbad45b38dd94b2b16f71f64/FLAGad62d274f [2019-12-07 17:05:57,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/data/869a2e60c/085a9dddbbad45b38dd94b2b16f71f64 [2019-12-07 17:05:57,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:05:57,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:05:57,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:57,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:05:57,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:05:57,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738e1cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57, skipping insertion in model container [2019-12-07 17:05:57,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:05:57,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:05:57,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:57,613 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 17:05:57,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:05:57,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:57,662 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:05:57,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:57,747 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:05:57,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57 WrapperNode [2019-12-07 17:05:57,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:57,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:05:57,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:05:57,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:05:57,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... [2019-12-07 17:05:57,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:05:57,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:05:57,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:05:57,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:05:57,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 17:05:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-12-07 17:05:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-12-07 17:05:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-12-07 17:05:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-12-07 17:05:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 17:05:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 17:05:57,852 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 17:05:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 17:05:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 17:05:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 17:05:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 17:05:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 17:05:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-12-07 17:05:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-12-07 17:05:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-12-07 17:05:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:05:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 17:05:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-12-07 17:05:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-12-07 17:05:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-12-07 17:05:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-12-07 17:05:58,192 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 17:05:58,419 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 17:05:58,626 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:05:58,626 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-12-07 17:05:58,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:05:58 BoogieIcfgContainer [2019-12-07 17:05:58,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:05:58,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:05:58,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:05:58,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:05:58,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:05:57" (1/3) ... [2019-12-07 17:05:58,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e640b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:05:58, skipping insertion in model container [2019-12-07 17:05:58,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:57" (2/3) ... [2019-12-07 17:05:58,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e640b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:05:58, skipping insertion in model container [2019-12-07 17:05:58,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:05:58" (3/3) ... [2019-12-07 17:05:58,632 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-1.i [2019-12-07 17:05:58,639 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:05:58,644 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-12-07 17:05:58,652 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-12-07 17:05:58,665 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:05:58,665 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 17:05:58,665 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:05:58,665 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:05:58,665 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:05:58,666 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:05:58,666 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:05:58,666 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:05:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2019-12-07 17:05:58,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:05:58,683 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:58,683 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 17:05:58,684 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:58,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:58,688 INFO L82 PathProgramCache]: Analyzing trace with hash -896940051, now seen corresponding path program 1 times [2019-12-07 17:05:58,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:58,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63359534] [2019-12-07 17:05:58,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:05:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:58,828 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:05:58,832 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:58,874 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 17:05:58,874 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:58,880 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:58,880 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:05:58,880 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:05:58,900 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 17:05:58,901 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:58,937 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 17:05:58,938 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63359534] [2019-12-07 17:05:58,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:58,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 17:05:58,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954373790] [2019-12-07 17:05:58,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:05:58,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:58,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:05:58,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:05:58,953 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 5 states. [2019-12-07 17:05:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:59,112 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2019-12-07 17:05:59,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:05:59,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 17:05:59,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:59,122 INFO L225 Difference]: With dead ends: 74 [2019-12-07 17:05:59,123 INFO L226 Difference]: Without dead ends: 71 [2019-12-07 17:05:59,124 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 17:05:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-12-07 17:05:59,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2019-12-07 17:05:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-12-07 17:05:59,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2019-12-07 17:05:59,155 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 17 [2019-12-07 17:05:59,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:59,155 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2019-12-07 17:05:59,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:05:59,155 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2019-12-07 17:05:59,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:05:59,156 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:59,156 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 17:05:59,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:05:59,357 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:59,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:59,357 INFO L82 PathProgramCache]: Analyzing trace with hash -896940050, now seen corresponding path program 1 times [2019-12-07 17:05:59,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:59,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692663984] [2019-12-07 17:05:59,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:05:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:59,461 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 17:05:59,463 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:59,473 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 17:05:59,474 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:59,478 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:59,479 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:05:59,479 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:05:59,516 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 17:05:59,516 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:59,759 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 17:05:59,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692663984] [2019-12-07 17:05:59,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:59,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-12-07 17:05:59,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190224683] [2019-12-07 17:05:59,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 17:05:59,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:59,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 17:05:59,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:05:59,762 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand 10 states. [2019-12-07 17:06:00,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:00,151 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2019-12-07 17:06:00,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:06:00,153 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-12-07 17:06:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:00,154 INFO L225 Difference]: With dead ends: 70 [2019-12-07 17:06:00,154 INFO L226 Difference]: Without dead ends: 70 [2019-12-07 17:06:00,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-12-07 17:06:00,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-07 17:06:00,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2019-12-07 17:06:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-12-07 17:06:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2019-12-07 17:06:00,160 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 17 [2019-12-07 17:06:00,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:00,161 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2019-12-07 17:06:00,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 17:06:00,161 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2019-12-07 17:06:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:06:00,161 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:00,161 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 17:06:00,362 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:06:00,362 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:00,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:00,363 INFO L82 PathProgramCache]: Analyzing trace with hash -868310900, now seen corresponding path program 1 times [2019-12-07 17:06:00,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:00,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315969524] [2019-12-07 17:06:00,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:06:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:00,474 INFO L264 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:06:00,475 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:00,494 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 17:06:00,494 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:00,518 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 17:06:00,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315969524] [2019-12-07 17:06:00,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:00,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:06:00,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943953556] [2019-12-07 17:06:00,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:06:00,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:00,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:06:00,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:06:00,520 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 5 states. [2019-12-07 17:06:00,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:00,535 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2019-12-07 17:06:00,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:06:00,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 17:06:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:00,536 INFO L225 Difference]: With dead ends: 64 [2019-12-07 17:06:00,536 INFO L226 Difference]: Without dead ends: 64 [2019-12-07 17:06:00,536 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 17:06:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-12-07 17:06:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2019-12-07 17:06:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-12-07 17:06:00,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2019-12-07 17:06:00,541 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2019-12-07 17:06:00,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:00,541 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2019-12-07 17:06:00,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:06:00,541 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2019-12-07 17:06:00,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 17:06:00,542 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:00,542 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:00,742 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 17:06:00,743 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:00,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:00,744 INFO L82 PathProgramCache]: Analyzing trace with hash 2008128002, now seen corresponding path program 1 times [2019-12-07 17:06:00,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:00,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573924843] [2019-12-07 17:06:00,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:06:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:00,869 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:06:00,870 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:00,884 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 17:06:00,884 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:00,954 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 17:06:00,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573924843] [2019-12-07 17:06:00,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:00,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:06:00,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120406447] [2019-12-07 17:06:00,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:06:00,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:00,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:06:00,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:06:00,956 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 5 states. [2019-12-07 17:06:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:00,967 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2019-12-07 17:06:00,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:06:00,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-07 17:06:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:00,968 INFO L225 Difference]: With dead ends: 64 [2019-12-07 17:06:00,968 INFO L226 Difference]: Without dead ends: 64 [2019-12-07 17:06:00,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 17:06:00,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-12-07 17:06:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2019-12-07 17:06:00,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-12-07 17:06:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2019-12-07 17:06:00,973 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 22 [2019-12-07 17:06:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:00,973 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2019-12-07 17:06:00,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:06:00,973 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2019-12-07 17:06:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 17:06:00,974 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:00,974 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:01,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 17:06:01,175 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:01,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:01,176 INFO L82 PathProgramCache]: Analyzing trace with hash 211176643, now seen corresponding path program 1 times [2019-12-07 17:06:01,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:01,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437960005] [2019-12-07 17:06:01,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:06:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:01,275 INFO L264 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 17:06:01,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:01,282 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 17:06:01,282 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:01,337 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 17:06:01,337 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437960005] [2019-12-07 17:06:01,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:01,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 17:06:01,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886303462] [2019-12-07 17:06:01,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:06:01,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:01,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:06:01,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:06:01,339 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 3 states. [2019-12-07 17:06:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:01,398 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2019-12-07 17:06:01,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:06:01,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-07 17:06:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:01,399 INFO L225 Difference]: With dead ends: 68 [2019-12-07 17:06:01,399 INFO L226 Difference]: Without dead ends: 58 [2019-12-07 17:06:01,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 17:06:01,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-07 17:06:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-12-07 17:06:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 17:06:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2019-12-07 17:06:01,403 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 22 [2019-12-07 17:06:01,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:01,404 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2019-12-07 17:06:01,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:06:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2019-12-07 17:06:01,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 17:06:01,404 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:01,404 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:01,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 17:06:01,606 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:01,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:01,606 INFO L82 PathProgramCache]: Analyzing trace with hash -45428445, now seen corresponding path program 1 times [2019-12-07 17:06:01,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:01,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450907162] [2019-12-07 17:06:01,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:06:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:01,739 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 17:06:01,741 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:01,750 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 17:06:01,750 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:01,783 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 17:06:01,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450907162] [2019-12-07 17:06:01,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:01,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 17:06:01,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128260885] [2019-12-07 17:06:01,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:06:01,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:01,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:06:01,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:06:01,784 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2019-12-07 17:06:01,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:01,813 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2019-12-07 17:06:01,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:06:01,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 17:06:01,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:01,814 INFO L225 Difference]: With dead ends: 64 [2019-12-07 17:06:01,814 INFO L226 Difference]: Without dead ends: 60 [2019-12-07 17:06:01,815 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:06:01,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-12-07 17:06:01,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-12-07 17:06:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-12-07 17:06:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2019-12-07 17:06:01,819 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 32 [2019-12-07 17:06:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:01,819 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2019-12-07 17:06:01,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:06:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2019-12-07 17:06:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 17:06:01,821 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:01,821 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:02,021 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 17:06:02,022 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash -792080061, now seen corresponding path program 1 times [2019-12-07 17:06:02,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:02,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823598869] [2019-12-07 17:06:02,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:06:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:02,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:06:02,174 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:02,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:06:02,191 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:02,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:06:02,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823598869] [2019-12-07 17:06:02,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:06:02,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-12-07 17:06:02,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990751641] [2019-12-07 17:06:02,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 17:06:02,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:02,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 17:06:02,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:06:02,283 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 10 states. [2019-12-07 17:06:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:02,433 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2019-12-07 17:06:02,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:06:02,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-12-07 17:06:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:02,434 INFO L225 Difference]: With dead ends: 68 [2019-12-07 17:06:02,434 INFO L226 Difference]: Without dead ends: 64 [2019-12-07 17:06:02,434 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-12-07 17:06:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-12-07 17:06:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-12-07 17:06:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-12-07 17:06:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2019-12-07 17:06:02,438 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 34 [2019-12-07 17:06:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:02,438 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2019-12-07 17:06:02,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 17:06:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2019-12-07 17:06:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 17:06:02,439 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:02,439 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:02,639 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 17:06:02,640 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:02,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:02,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1102366333, now seen corresponding path program 2 times [2019-12-07 17:06:02,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:02,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100008139] [2019-12-07 17:06:02,641 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:06:02,761 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 17:06:02,761 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:06:02,764 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 17:06:02,765 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:02,769 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 17:06:02,770 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:02,772 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:02,772 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:06:02,772 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:06:02,869 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-12-07 17:06:02,869 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-12-07 17:06:02,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100008139] [2019-12-07 17:06:02,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:02,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2019-12-07 17:06:02,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758066486] [2019-12-07 17:06:02,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 17:06:02,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:02,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 17:06:02,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:06:02,919 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 12 states. [2019-12-07 17:06:03,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:03,311 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2019-12-07 17:06:03,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 17:06:03,311 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2019-12-07 17:06:03,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:03,312 INFO L225 Difference]: With dead ends: 63 [2019-12-07 17:06:03,312 INFO L226 Difference]: Without dead ends: 63 [2019-12-07 17:06:03,312 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-12-07 17:06:03,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-12-07 17:06:03,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-12-07 17:06:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-12-07 17:06:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2019-12-07 17:06:03,316 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 38 [2019-12-07 17:06:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:03,316 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2019-12-07 17:06:03,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 17:06:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2019-12-07 17:06:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 17:06:03,317 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:03,317 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:03,517 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 17:06:03,518 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:03,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1102366332, now seen corresponding path program 1 times [2019-12-07 17:06:03,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:03,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960479820] [2019-12-07 17:06:03,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/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 17:06:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:03,668 INFO L264 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 17:06:03,669 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:06:03,713 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:03,983 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:06:03,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960479820] [2019-12-07 17:06:03,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:06:03,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-12-07 17:06:03,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462102563] [2019-12-07 17:06:03,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 17:06:03,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:03,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 17:06:03,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-12-07 17:06:03,984 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand 18 states. [2019-12-07 17:06:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:04,881 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2019-12-07 17:06:04,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 17:06:04,882 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-12-07 17:06:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:04,883 INFO L225 Difference]: With dead ends: 75 [2019-12-07 17:06:04,883 INFO L226 Difference]: Without dead ends: 71 [2019-12-07 17:06:04,884 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-12-07 17:06:04,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-12-07 17:06:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-12-07 17:06:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-12-07 17:06:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2019-12-07 17:06:04,890 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 38 [2019-12-07 17:06:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:04,891 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2019-12-07 17:06:04,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 17:06:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2019-12-07 17:06:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-12-07 17:06:04,893 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:04,893 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:05,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 17:06:05,094 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:05,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:05,095 INFO L82 PathProgramCache]: Analyzing trace with hash 2064886276, now seen corresponding path program 2 times [2019-12-07 17:06:05,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:05,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033981362] [2019-12-07 17:06:05,096 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 17:06:05,217 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 17:06:05,217 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:06:05,220 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 17:06:05,222 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:05,229 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 17:06:05,229 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:05,233 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:05,234 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:06:05,234 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:06:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-12-07 17:06:05,379 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:06,175 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-12-07 17:06:06,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033981362] [2019-12-07 17:06:06,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:06,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-12-07 17:06:06,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184584649] [2019-12-07 17:06:06,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-12-07 17:06:06,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:06,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-12-07 17:06:06,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-12-07 17:06:06,176 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 23 states. [2019-12-07 17:06:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:07,431 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2019-12-07 17:06:07,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 17:06:07,431 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-12-07 17:06:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:07,432 INFO L225 Difference]: With dead ends: 70 [2019-12-07 17:06:07,432 INFO L226 Difference]: Without dead ends: 70 [2019-12-07 17:06:07,433 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-12-07 17:06:07,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-07 17:06:07,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-07 17:06:07,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 17:06:07,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2019-12-07 17:06:07,436 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 46 [2019-12-07 17:06:07,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:07,436 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2019-12-07 17:06:07,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-12-07 17:06:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2019-12-07 17:06:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 17:06:07,437 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:07,437 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:07,638 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 17:06:07,639 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:07,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:07,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1743926468, now seen corresponding path program 1 times [2019-12-07 17:06:07,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:07,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833559909] [2019-12-07 17:06:07,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 17:06:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:07,806 INFO L264 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 17:06:07,808 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:06:07,952 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:06:08,965 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833559909] [2019-12-07 17:06:08,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:06:08,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-12-07 17:06:08,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840193637] [2019-12-07 17:06:08,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-12-07 17:06:08,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:08,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-12-07 17:06:08,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2019-12-07 17:06:08,968 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 34 states. [2019-12-07 17:06:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:09,544 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2019-12-07 17:06:09,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-07 17:06:09,545 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-12-07 17:06:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:09,546 INFO L225 Difference]: With dead ends: 76 [2019-12-07 17:06:09,546 INFO L226 Difference]: Without dead ends: 72 [2019-12-07 17:06:09,547 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2019-12-07 17:06:09,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-12-07 17:06:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-12-07 17:06:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 17:06:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2019-12-07 17:06:09,550 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 51 [2019-12-07 17:06:09,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:09,551 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2019-12-07 17:06:09,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-12-07 17:06:09,551 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2019-12-07 17:06:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 17:06:09,552 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:09,552 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:09,753 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 17:06:09,754 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash 845780764, now seen corresponding path program 2 times [2019-12-07 17:06:09,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:09,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088940455] [2019-12-07 17:06:09,755 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 17:06:09,869 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 17:06:09,869 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:06:09,873 INFO L264 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 17:06:09,874 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:09,878 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 17:06:09,878 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:09,879 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:09,880 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:06:09,880 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:06:09,979 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:09,979 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:10,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088940455] [2019-12-07 17:06:10,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:10,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2019-12-07 17:06:10,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777299636] [2019-12-07 17:06:10,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 17:06:10,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:10,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 17:06:10,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:06:10,020 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand 12 states. [2019-12-07 17:06:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:10,355 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2019-12-07 17:06:10,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 17:06:10,355 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2019-12-07 17:06:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:10,356 INFO L225 Difference]: With dead ends: 70 [2019-12-07 17:06:10,356 INFO L226 Difference]: Without dead ends: 70 [2019-12-07 17:06:10,356 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-12-07 17:06:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-07 17:06:10,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-07 17:06:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 17:06:10,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2019-12-07 17:06:10,358 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 53 [2019-12-07 17:06:10,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:10,358 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2019-12-07 17:06:10,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 17:06:10,358 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2019-12-07 17:06:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 17:06:10,359 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:10,359 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:10,560 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 17:06:10,560 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:10,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:10,561 INFO L82 PathProgramCache]: Analyzing trace with hash 845780765, now seen corresponding path program 1 times [2019-12-07 17:06:10,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:10,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116350399] [2019-12-07 17:06:10,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 17:06:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:10,769 INFO L264 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 17:06:10,770 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:10,776 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 17:06:10,777 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:10,781 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:10,781 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:06:10,781 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:06:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:10,952 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:11,738 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:11,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116350399] [2019-12-07 17:06:11,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:11,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-12-07 17:06:11,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361792826] [2019-12-07 17:06:11,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-12-07 17:06:11,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:11,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-12-07 17:06:11,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-12-07 17:06:11,739 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 23 states. [2019-12-07 17:06:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:12,928 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2019-12-07 17:06:12,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 17:06:12,929 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 53 [2019-12-07 17:06:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:12,930 INFO L225 Difference]: With dead ends: 68 [2019-12-07 17:06:12,930 INFO L226 Difference]: Without dead ends: 68 [2019-12-07 17:06:12,930 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-12-07 17:06:12,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-12-07 17:06:12,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-12-07 17:06:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 17:06:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2019-12-07 17:06:12,933 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 53 [2019-12-07 17:06:12,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:12,934 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2019-12-07 17:06:12,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-12-07 17:06:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2019-12-07 17:06:12,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 17:06:12,934 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:12,934 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:13,135 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 17:06:13,136 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:13,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:13,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1516815243, now seen corresponding path program 1 times [2019-12-07 17:06:13,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:13,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393591208] [2019-12-07 17:06:13,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2019-12-07 17:06:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:13,295 INFO L264 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:06:13,296 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:13,318 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:13,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393591208] [2019-12-07 17:06:13,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:13,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-12-07 17:06:13,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784433003] [2019-12-07 17:06:13,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 17:06:13,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:13,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 17:06:13,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:06:13,431 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand 8 states. [2019-12-07 17:06:13,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:13,463 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2019-12-07 17:06:13,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:06:13,463 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-12-07 17:06:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:13,464 INFO L225 Difference]: With dead ends: 70 [2019-12-07 17:06:13,464 INFO L226 Difference]: Without dead ends: 68 [2019-12-07 17:06:13,464 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:06:13,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-12-07 17:06:13,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-12-07 17:06:13,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 17:06:13,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2019-12-07 17:06:13,466 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 51 [2019-12-07 17:06:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:13,466 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2019-12-07 17:06:13,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 17:06:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2019-12-07 17:06:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-07 17:06:13,467 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:13,467 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:13,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-12-07 17:06:13,668 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:13,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:13,668 INFO L82 PathProgramCache]: Analyzing trace with hash 240473020, now seen corresponding path program 1 times [2019-12-07 17:06:13,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:13,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187591951] [2019-12-07 17:06:13,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2019-12-07 17:06:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:13,777 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 17:06:13,778 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:13,814 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:13,967 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:06:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:06:13,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187591951] [2019-12-07 17:06:13,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:06:13,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-12-07 17:06:13,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416584551] [2019-12-07 17:06:13,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 17:06:13,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:13,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 17:06:13,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-12-07 17:06:13,999 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 11 states. [2019-12-07 17:06:14,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:14,063 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2019-12-07 17:06:14,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 17:06:14,063 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2019-12-07 17:06:14,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:14,064 INFO L225 Difference]: With dead ends: 72 [2019-12-07 17:06:14,064 INFO L226 Difference]: Without dead ends: 68 [2019-12-07 17:06:14,064 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-12-07 17:06:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-12-07 17:06:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-12-07 17:06:14,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 17:06:14,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2019-12-07 17:06:14,066 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 56 [2019-12-07 17:06:14,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:14,066 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2019-12-07 17:06:14,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 17:06:14,066 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2019-12-07 17:06:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-12-07 17:06:14,067 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:14,067 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:14,267 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-12-07 17:06:14,268 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:14,268 INFO L82 PathProgramCache]: Analyzing trace with hash 214334517, now seen corresponding path program 1 times [2019-12-07 17:06:14,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:14,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576797419] [2019-12-07 17:06:14,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30cfe827-dfc9-4b14-83b0-582f896479d7/bin/uautomizer/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2019-12-07 17:06:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:06:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:06:14,691 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 17:06:14,691 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:06:14,892 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2019-12-07 17:06:14,913 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2019-12-07 17:06:14,919 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 17:06:14,926 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 19bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-12-07 17:06:14,926 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-12-07 17:06:14,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:06:14 BoogieIcfgContainer [2019-12-07 17:06:14,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:06:14,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:06:14,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:06:14,939 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:06:14,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:05:58" (3/4) ... [2019-12-07 17:06:14,942 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:06:14,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:06:14,943 INFO L168 Benchmark]: Toolchain (without parser) took 17678.01 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 342.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 198.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:06:14,943 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 17:06:14,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:06:14,944 INFO L168 Benchmark]: Boogie Preprocessor took 61.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:06:14,944 INFO L168 Benchmark]: RCFGBuilder took 818.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 110.9 MB). Peak memory consumption was 110.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:06:14,945 INFO L168 Benchmark]: TraceAbstraction took 16310.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.8 MB). Free memory was 963.4 MB in the beginning and 1.1 GB in the end (delta: -127.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:06:14,945 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:06:14,946 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 480.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 818.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 110.9 MB). Peak memory consumption was 110.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16310.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.8 MB). Free memory was 963.4 MB in the beginning and 1.1 GB in the end (delta: -127.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.77 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - 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 19bv32 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 17bv32 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: 761]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 761. 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}] [L762] CALL entry_point() VAL [ldv_global_msg_list={3:0}] [L758] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={3:0}] [L759] CALL, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={3:0}] [L740] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={3:0}] [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16, ldv_global_msg_list={3:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=16, \result={1:0}, ldv_global_msg_list={3:0}, malloc(size)={1:0}, size=16] [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={3:0}, ldv_malloc(sizeof(*kobj))={1:0}] [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L744] FCALL memset(kobj, 0, sizeof(*kobj)) VAL [kobj={1:0}, ldv_global_msg_list={3:0}, memset(kobj, 0, sizeof(*kobj))={1:0}] [L745] CALL ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L730] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L733] CALL ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L723] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L725] CALL ldv_kref_init(&kobj->kref) VAL [kref={1:12}, ldv_global_msg_list={3:0}] [L682] ((&kref->refcount)->counter) = (1) VAL [kref={1:12}, kref={1:12}, ldv_global_msg_list={3:0}] [L725] RET ldv_kref_init(&kobj->kref) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [ldv_global_msg_list={3:0}, list={1:4}] [L540] list->next = list VAL [ldv_global_msg_list={3:0}, list={1:4}, list={1:4}] [L541] list->prev = list VAL [ldv_global_msg_list={3:0}, list={1:4}, list={1:4}] [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L733] RET ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L745] RET ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L746] return kobj; VAL [\result={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L759] RET, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={3:0}, ldv_kobject_create()={1:0}] [L759] kobj = ldv_kobject_create() [L762] RET entry_point() VAL [ldv_global_msg_list={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 330 locations, 71 error locations. Result: UNSAFE, OverallTime: 16.2s, OverallIterations: 16, TraceHistogramMax: 16, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 365 SDslu, 4374 SDs, 0 SdLazy, 2382 SolverSat, 158 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1109 GetRequests, 905 SyntacticMatches, 19 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred 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, 15 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 614 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1064 ConstructedInterpolants, 80 QuantifiedInterpolants, 152463 SizeOfPredicates, 48 NumberOfNonLiveVariables, 2290 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 1340/1598 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...