./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.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_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 5be2e30df948ebd6000c3afde848283ab7f83dcc ............................................................................................................................ 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_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 5be2e30df948ebd6000c3afde848283ab7f83dcc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:05:25,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:05:25,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:05:25,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:05:25,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:05:25,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:05:25,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:05:25,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:05:25,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:05:25,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:05:25,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:05:25,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:05:25,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:05:25,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:05:25,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:05:25,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:05:25,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:05:25,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:05:25,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:05:25,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:05:25,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:05:25,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:05:25,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:05:25,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:05:25,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:05:25,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:05:25,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:05:25,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:05:25,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:05:25,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:05:25,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:05:25,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:05:25,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:05:25,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:05:25,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:05:25,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:05:25,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:05:25,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:05:25,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:05:25,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:05:25,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:05:25,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 17:05:25,800 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:05:25,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:05:25,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:05:25,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:05:25,802 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:05:25,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:05:25,802 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:05:25,802 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:05:25,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:05:25,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:05:25,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:05:25,803 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:05:25,803 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:05:25,803 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:05:25,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:05:25,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:05:25,803 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:05:25,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:05:25,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:05:25,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:05:25,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:05:25,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:05:25,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:05:25,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:05:25,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:05:25,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:05:25,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:05:25,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:05:25,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 -> 5be2e30df948ebd6000c3afde848283ab7f83dcc [2019-12-07 17:05:25,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:05:25,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:05:25,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:05:25,914 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:05:25,914 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:05:25,915 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-12-07 17:05:25,953 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/89150465d/b3c3f6285739471cac6959f14d08acac/FLAG4dae7966a [2019-12-07 17:05:26,339 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:05:26,340 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-12-07 17:05:26,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/89150465d/b3c3f6285739471cac6959f14d08acac/FLAG4dae7966a [2019-12-07 17:05:26,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/89150465d/b3c3f6285739471cac6959f14d08acac [2019-12-07 17:05:26,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:05:26,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:05:26,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:26,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:05:26,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:05:26,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:26" (1/1) ... [2019-12-07 17:05:26,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a891328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:26, skipping insertion in model container [2019-12-07 17:05:26,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:26" (1/1) ... [2019-12-07 17:05:26,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:05:26,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:05:26,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:26,656 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 17:05:26,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38903010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:26, skipping insertion in model container [2019-12-07 17:05:26,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:26,657 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 17:05:26,659 INFO L168 Benchmark]: Toolchain (without parser) took 297.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:05:26,659 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:05:26,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:05:26,661 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 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 17:05:27,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:05:27,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:05:27,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:05:27,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:05:27,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:05:27,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:05:27,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:05:27,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:05:27,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:05:27,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:05:27,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:05:27,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:05:27,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:05:27,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:05:27,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:05:27,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:05:27,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:05:27,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:05:27,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:05:27,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:05:27,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:05:27,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:05:27,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:05:27,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:05:27,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:05:27,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:05:27,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:05:27,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:05:27,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:05:27,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:05:27,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:05:27,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:05:27,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:05:27,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:05:27,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:05:27,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:05:27,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:05:27,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:05:27,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:05:27,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:05:27,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 17:05:27,824 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:05:27,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:05:27,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:05:27,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:05:27,825 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:05:27,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:05:27,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:05:27,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:05:27,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:05:27,826 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:05:27,827 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:05:27,827 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:05:27,827 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:05:27,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:05:27,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:05:27,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:05:27,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:05:27,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:05:27,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:05:27,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:05:27,828 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 17:05:27,828 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:05:27,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:05:27,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:05:27,828 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_996eb692-bd2a-48ea-ae6c-f562260341ce/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 -> 5be2e30df948ebd6000c3afde848283ab7f83dcc [2019-12-07 17:05:27,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:05:28,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:05:28,004 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:05:28,005 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:05:28,005 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:05:28,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-12-07 17:05:28,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/a6d64a25c/99bd35d3e8d442e5831ce8e319fd5878/FLAG31fc9b1e2 [2019-12-07 17:05:28,416 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:05:28,417 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-12-07 17:05:28,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/a6d64a25c/99bd35d3e8d442e5831ce8e319fd5878/FLAG31fc9b1e2 [2019-12-07 17:05:28,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/data/a6d64a25c/99bd35d3e8d442e5831ce8e319fd5878 [2019-12-07 17:05:28,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:05:28,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:05:28,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:28,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:05:28,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:05:28,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656ee44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28, skipping insertion in model container [2019-12-07 17:05:28,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:05:28,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:05:28,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:28,737 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 17:05:28,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:05:28,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:28,783 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:05:28,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:05:28,870 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:05:28,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28 WrapperNode [2019-12-07 17:05:28,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:05:28,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:05:28,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:05:28,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:05:28,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... [2019-12-07 17:05:28,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:05:28,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:05:28,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:05:28,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:05:28,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 17:05:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:05:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 17:05:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 17:05:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-12-07 17:05:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-12-07 17:05:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-12-07 17:05:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-12-07 17:05:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 17:05:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 17:05:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 17:05:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 17:05:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 17:05:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 17:05:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 17:05:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 17:05:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 17:05:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-12-07 17:05:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-12-07 17:05:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-12-07 17:05:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 17:05:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-12-07 17:05:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-12-07 17:05:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-12-07 17:05:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-12-07 17:05:29,337 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 17:05:29,575 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 17:05:29,922 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:05:29,922 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 17:05:29,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:05:29 BoogieIcfgContainer [2019-12-07 17:05:29,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:05:29,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:05:29,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:05:29,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:05:29,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:05:28" (1/3) ... [2019-12-07 17:05:29,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:05:29, skipping insertion in model container [2019-12-07 17:05:29,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:05:28" (2/3) ... [2019-12-07 17:05:29,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:05:29, skipping insertion in model container [2019-12-07 17:05:29,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:05:29" (3/3) ... [2019-12-07 17:05:29,928 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-12-07 17:05:29,934 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:05:29,939 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-12-07 17:05:29,947 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-12-07 17:05:29,959 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:05:29,959 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 17:05:29,959 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:05:29,959 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:05:29,959 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:05:29,960 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:05:29,960 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:05:29,960 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:05:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-12-07 17:05:29,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 17:05:29,979 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:29,979 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:05:29,980 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:29,984 INFO L82 PathProgramCache]: Analyzing trace with hash -67233649, now seen corresponding path program 1 times [2019-12-07 17:05:29,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:29,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104519298] [2019-12-07 17:05:29,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:30,120 INFO L264 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:05:30,125 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:30,172 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 17:05:30,173 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:30,178 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:30,178 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:05:30,179 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:05:30,198 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 17:05:30,199 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:30,234 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 17:05:30,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104519298] [2019-12-07 17:05:30,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:30,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 17:05:30,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591343253] [2019-12-07 17:05:30,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:05:30,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:30,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:05:30,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:05:30,251 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-12-07 17:05:30,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:30,444 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-12-07 17:05:30,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:05:30,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-12-07 17:05:30,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:30,453 INFO L225 Difference]: With dead ends: 87 [2019-12-07 17:05:30,453 INFO L226 Difference]: Without dead ends: 84 [2019-12-07 17:05:30,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 17:05:30,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-07 17:05:30,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-12-07 17:05:30,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-07 17:05:30,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-12-07 17:05:30,484 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-12-07 17:05:30,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:30,485 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-12-07 17:05:30,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:05:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-12-07 17:05:30,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 17:05:30,486 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:30,486 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:05:30,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:05:30,687 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:30,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:30,687 INFO L82 PathProgramCache]: Analyzing trace with hash -67233648, now seen corresponding path program 1 times [2019-12-07 17:05:30,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:30,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723325460] [2019-12-07 17:05:30,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:30,788 INFO L264 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 17:05:30,789 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:30,804 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 17:05:30,804 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:30,809 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:30,809 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:05:30,809 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:05:30,863 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 17:05:30,863 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:31,431 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 17:05:31,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723325460] [2019-12-07 17:05:31,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:31,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-12-07 17:05:31,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283177873] [2019-12-07 17:05:31,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 17:05:31,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:31,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 17:05:31,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-12-07 17:05:31,433 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-12-07 17:05:32,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:32,343 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2019-12-07 17:05:32,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:05:32,344 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-12-07 17:05:32,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:32,345 INFO L225 Difference]: With dead ends: 93 [2019-12-07 17:05:32,345 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 17:05:32,346 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-12-07 17:05:32,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 17:05:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2019-12-07 17:05:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 17:05:32,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-12-07 17:05:32,354 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-12-07 17:05:32,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:32,354 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-12-07 17:05:32,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 17:05:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-12-07 17:05:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 17:05:32,355 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:32,355 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:05:32,555 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:05:32,556 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:32,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:32,557 INFO L82 PathProgramCache]: Analyzing trace with hash 820270032, now seen corresponding path program 1 times [2019-12-07 17:05:32,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:32,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352109111] [2019-12-07 17:05:32,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:32,667 INFO L264 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:05:32,668 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:32,686 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 17:05:32,687 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:32,709 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 17:05:32,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352109111] [2019-12-07 17:05:32,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:32,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:05:32,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943143551] [2019-12-07 17:05:32,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:05:32,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:32,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:05:32,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:05:32,711 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-12-07 17:05:32,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:32,739 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-12-07 17:05:32,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:05:32,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-12-07 17:05:32,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:32,740 INFO L225 Difference]: With dead ends: 84 [2019-12-07 17:05:32,740 INFO L226 Difference]: Without dead ends: 84 [2019-12-07 17:05:32,740 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 17:05:32,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-07 17:05:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-12-07 17:05:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-12-07 17:05:32,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-12-07 17:05:32,746 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-12-07 17:05:32,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:32,746 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-12-07 17:05:32,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:05:32,746 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-12-07 17:05:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:05:32,746 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:32,747 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 17:05:32,947 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 17:05:32,948 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:32,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:32,949 INFO L82 PathProgramCache]: Analyzing trace with hash -2083416263, now seen corresponding path program 1 times [2019-12-07 17:05:32,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:32,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515954412] [2019-12-07 17:05:32,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:33,050 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:05:33,051 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:33,063 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 17:05:33,063 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:33,105 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 17:05:33,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515954412] [2019-12-07 17:05:33,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:33,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:05:33,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479448094] [2019-12-07 17:05:33,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:05:33,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:33,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:05:33,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:05:33,107 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-12-07 17:05:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:33,144 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-12-07 17:05:33,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:05:33,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 17:05:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:33,145 INFO L225 Difference]: With dead ends: 84 [2019-12-07 17:05:33,145 INFO L226 Difference]: Without dead ends: 84 [2019-12-07 17:05:33,145 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 17:05:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-07 17:05:33,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-12-07 17:05:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-12-07 17:05:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-12-07 17:05:33,150 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-12-07 17:05:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:33,150 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-12-07 17:05:33,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:05:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-12-07 17:05:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:05:33,151 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:33,151 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 17:05:33,351 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 17:05:33,352 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:33,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:33,353 INFO L82 PathProgramCache]: Analyzing trace with hash -340605928, now seen corresponding path program 1 times [2019-12-07 17:05:33,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:33,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785542965] [2019-12-07 17:05:33,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:33,489 INFO L264 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 17:05:33,491 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:33,499 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 17:05:33,500 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:33,546 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 17:05:33,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785542965] [2019-12-07 17:05:33,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:33,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 17:05:33,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626599723] [2019-12-07 17:05:33,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:05:33,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:33,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:05:33,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:05:33,547 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-12-07 17:05:33,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:33,638 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-12-07 17:05:33,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:05:33,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-07 17:05:33,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:33,640 INFO L225 Difference]: With dead ends: 120 [2019-12-07 17:05:33,640 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 17:05:33,640 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:05:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 17:05:33,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-12-07 17:05:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-07 17:05:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-12-07 17:05:33,645 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-12-07 17:05:33,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:33,645 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-12-07 17:05:33,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:05:33,645 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-12-07 17:05:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 17:05:33,646 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:33,646 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:05:33,846 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 17:05:33,847 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:33,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:33,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1976385840, now seen corresponding path program 1 times [2019-12-07 17:05:33,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:33,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740117335] [2019-12-07 17:05:33,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:33,974 INFO L264 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 17:05:33,975 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:33,986 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 17:05:33,986 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:33,993 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:33,994 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:05:33,994 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:05:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:05:34,078 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:05:35,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740117335] [2019-12-07 17:05:35,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:05:35,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-12-07 17:05:35,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521363168] [2019-12-07 17:05:35,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 17:05:35,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:35,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 17:05:35,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-12-07 17:05:35,002 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 18 states. [2019-12-07 17:05:36,344 WARN L192 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-12-07 17:05:37,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:37,061 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-12-07 17:05:37,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-07 17:05:37,062 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-12-07 17:05:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:37,063 INFO L225 Difference]: With dead ends: 97 [2019-12-07 17:05:37,063 INFO L226 Difference]: Without dead ends: 97 [2019-12-07 17:05:37,064 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2019-12-07 17:05:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-12-07 17:05:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-12-07 17:05:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-07 17:05:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-12-07 17:05:37,069 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-12-07 17:05:37,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:37,069 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-12-07 17:05:37,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 17:05:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-12-07 17:05:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 17:05:37,070 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:37,070 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 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 17:05:37,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 17:05:37,271 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:37,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:37,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1887639459, now seen corresponding path program 1 times [2019-12-07 17:05:37,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:37,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051990874] [2019-12-07 17:05:37,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:37,418 INFO L264 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 17:05:37,419 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:37,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:05:37,454 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:05:37,560 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051990874] [2019-12-07 17:05:37,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:05:37,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-12-07 17:05:37,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285053763] [2019-12-07 17:05:37,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 17:05:37,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:37,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 17:05:37,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:05:37,562 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-12-07 17:05:37,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:37,845 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-12-07 17:05:37,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 17:05:37,846 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-12-07 17:05:37,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:37,847 INFO L225 Difference]: With dead ends: 98 [2019-12-07 17:05:37,847 INFO L226 Difference]: Without dead ends: 98 [2019-12-07 17:05:37,848 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-12-07 17:05:37,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-12-07 17:05:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-12-07 17:05:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 17:05:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-12-07 17:05:37,854 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-12-07 17:05:37,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:37,854 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-12-07 17:05:37,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 17:05:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-12-07 17:05:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 17:05:37,855 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:37,855 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:05:38,055 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 17:05:38,056 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:38,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1668351152, now seen corresponding path program 2 times [2019-12-07 17:05:38,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:38,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665910631] [2019-12-07 17:05:38,058 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:38,176 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 17:05:38,176 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:05:38,181 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2019-12-07 17:05:38,182 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:38,192 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 17:05:38,192 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:38,197 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:38,197 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:05:38,197 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:05:38,435 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:05:38,435 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:39,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:05:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:05:40,449 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665910631] [2019-12-07 17:05:40,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:05:40,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2019-12-07 17:05:40,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327266024] [2019-12-07 17:05:40,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-12-07 17:05:40,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:40,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-12-07 17:05:40,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2019-12-07 17:05:40,450 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 28 states. [2019-12-07 17:05:41,880 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2019-12-07 17:05:42,329 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 40 [2019-12-07 17:05:42,602 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 28 [2019-12-07 17:05:43,029 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2019-12-07 17:05:43,908 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-12-07 17:05:44,293 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2019-12-07 17:05:45,048 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-12-07 17:05:45,683 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-12-07 17:05:47,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:47,058 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2019-12-07 17:05:47,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-12-07 17:05:47,060 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 34 [2019-12-07 17:05:47,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:47,061 INFO L225 Difference]: With dead ends: 118 [2019-12-07 17:05:47,061 INFO L226 Difference]: Without dead ends: 118 [2019-12-07 17:05:47,062 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2019-12-07 17:05:47,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-12-07 17:05:47,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2019-12-07 17:05:47,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-12-07 17:05:47,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2019-12-07 17:05:47,067 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 34 [2019-12-07 17:05:47,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:47,068 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2019-12-07 17:05:47,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-12-07 17:05:47,068 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2019-12-07 17:05:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-07 17:05:47,070 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:47,070 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 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 17:05:47,270 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 17:05:47,271 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:47,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:47,272 INFO L82 PathProgramCache]: Analyzing trace with hash 355937783, now seen corresponding path program 2 times [2019-12-07 17:05:47,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:47,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068132415] [2019-12-07 17:05:47,272 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:47,402 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 17:05:47,402 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:05:47,404 INFO L264 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:05:47,405 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:47,423 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-12-07 17:05:47,423 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-12-07 17:05:47,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068132415] [2019-12-07 17:05:47,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:05:47,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-12-07 17:05:47,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174016590] [2019-12-07 17:05:47,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:05:47,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:47,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:05:47,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:05:47,472 INFO L87 Difference]: Start difference. First operand 116 states and 128 transitions. Second operand 7 states. [2019-12-07 17:05:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:47,536 INFO L93 Difference]: Finished difference Result 147 states and 163 transitions. [2019-12-07 17:05:47,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:05:47,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-12-07 17:05:47,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:47,538 INFO L225 Difference]: With dead ends: 147 [2019-12-07 17:05:47,538 INFO L226 Difference]: Without dead ends: 144 [2019-12-07 17:05:47,538 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:05:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-12-07 17:05:47,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2019-12-07 17:05:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-12-07 17:05:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2019-12-07 17:05:47,541 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 50 [2019-12-07 17:05:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:47,542 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2019-12-07 17:05:47,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:05:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2019-12-07 17:05:47,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-07 17:05:47,543 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:47,543 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:05:47,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 17:05:47,744 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:47,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:47,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1622715602, now seen corresponding path program 1 times [2019-12-07 17:05:47,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:47,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963459011] [2019-12-07 17:05:47,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:05:47,911 INFO L264 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 17:05:47,913 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 4 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:05:48,000 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 17:05:48,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963459011] [2019-12-07 17:05:48,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:05:48,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-12-07 17:05:48,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271083084] [2019-12-07 17:05:48,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-12-07 17:05:48,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:48,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-12-07 17:05:48,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2019-12-07 17:05:48,375 INFO L87 Difference]: Start difference. First operand 117 states and 129 transitions. Second operand 22 states. [2019-12-07 17:05:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:05:48,804 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2019-12-07 17:05:48,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 17:05:48,805 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 50 [2019-12-07 17:05:48,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:05:48,806 INFO L225 Difference]: With dead ends: 117 [2019-12-07 17:05:48,806 INFO L226 Difference]: Without dead ends: 117 [2019-12-07 17:05:48,807 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2019-12-07 17:05:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-12-07 17:05:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-12-07 17:05:48,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-12-07 17:05:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2019-12-07 17:05:48,810 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 50 [2019-12-07 17:05:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:05:48,810 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2019-12-07 17:05:48,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-12-07 17:05:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2019-12-07 17:05:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-07 17:05:48,811 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:05:48,811 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:05:49,012 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 17:05:49,014 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:05:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:05:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917294, now seen corresponding path program 2 times [2019-12-07 17:05:49,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:05:49,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104651796] [2019-12-07 17:05:49,017 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:05:49,187 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 17:05:49,187 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:05:49,195 INFO L264 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 17:05:49,197 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:05:49,200 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 17:05:49,200 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:49,201 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:49,201 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:05:49,202 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:05:49,265 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:05:49,265 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-12-07 17:05:49,266 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:05:49,278 INFO L614 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-12-07 17:05:49,279 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:05:49,279 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-12-07 17:05:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 17:05:49,303 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:05:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 17:05:53,606 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104651796] [2019-12-07 17:05:53,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:05:53,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-12-07 17:05:53,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341118168] [2019-12-07 17:05:53,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 17:05:53,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:05:53,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 17:05:53,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=229, Unknown=1, NotChecked=0, Total=272 [2019-12-07 17:05:53,607 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand 17 states. [2019-12-07 17:06:11,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:06:11,708 INFO L93 Difference]: Finished difference Result 216 states and 247 transitions. [2019-12-07 17:06:11,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 17:06:11,709 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2019-12-07 17:06:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:06:11,710 INFO L225 Difference]: With dead ends: 216 [2019-12-07 17:06:11,710 INFO L226 Difference]: Without dead ends: 216 [2019-12-07 17:06:11,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=105, Invalid=494, Unknown=1, NotChecked=0, Total=600 [2019-12-07 17:06:11,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-12-07 17:06:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 147. [2019-12-07 17:06:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-12-07 17:06:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 178 transitions. [2019-12-07 17:06:11,716 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 178 transitions. Word has length 56 [2019-12-07 17:06:11,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:06:11,717 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 178 transitions. [2019-12-07 17:06:11,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 17:06:11,717 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 178 transitions. [2019-12-07 17:06:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-07 17:06:11,718 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:06:11,718 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:06:11,918 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 17:06:11,919 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:06:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:06:11,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917293, now seen corresponding path program 1 times [2019-12-07 17:06:11,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:06:11,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386097698] [2019-12-07 17:06:11,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:06:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:06:12,080 INFO L264 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2019-12-07 17:06:12,082 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:06:12,092 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 17:06:12,093 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:12,100 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:12,102 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 17:06:12,103 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:12,108 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:12,108 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:06:12,108 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 17:06:14,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:06:14,243 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-12-07 17:06:14,243 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:14,255 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:14,262 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:14,263 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-12-07 17:06:14,263 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:14,272 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:14,273 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:06:14,273 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2019-12-07 17:06:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 17:06:14,308 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:06:14,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:06:16,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:06:16,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:06:16,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:06:22,209 WARN L192 SmtUtils]: Spent 4.86 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-12-07 17:06:22,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:06:25,429 INFO L430 ElimStorePlain]: Different costs {1=[|v_#valid_262|], 2=[|v_#length_220|]} [2019-12-07 17:06:25,435 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 17:06:25,435 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:25,443 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:25,444 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:06:25,444 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:25,451 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:25,451 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:06:25,451 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-12-07 17:06:25,995 INFO L430 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-12-07 17:06:26,004 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 17:06:26,004 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:26,022 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:26,024 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:06:26,024 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 17:06:26,041 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:06:26,041 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:06:26,041 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-12-07 17:06:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 17:06:26,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386097698] [2019-12-07 17:06:26,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:06:26,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-12-07 17:06:26,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402987392] [2019-12-07 17:06:26,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-12-07 17:06:26,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:06:26,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-12-07 17:06:26,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=405, Unknown=4, NotChecked=0, Total=462 [2019-12-07 17:06:26,207 INFO L87 Difference]: Start difference. First operand 147 states and 178 transitions. Second operand 22 states. [2019-12-07 17:07:01,204 WARN L192 SmtUtils]: Spent 20.27 s on a formula simplification that was a NOOP. DAG size: 54 [2019-12-07 17:07:27,053 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-12-07 17:07:32,228 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-12-07 17:07:35,805 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-12-07 17:07:49,729 WARN L192 SmtUtils]: Spent 6.66 s on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2019-12-07 17:07:56,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:07:56,547 INFO L93 Difference]: Finished difference Result 281 states and 335 transitions. [2019-12-07 17:07:56,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-07 17:07:56,547 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-12-07 17:07:56,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:07:56,549 INFO L225 Difference]: With dead ends: 281 [2019-12-07 17:07:56,549 INFO L226 Difference]: Without dead ends: 281 [2019-12-07 17:07:56,549 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 58.4s TimeCoverageRelationStatistics Valid=170, Invalid=1012, Unknown=8, NotChecked=0, Total=1190 [2019-12-07 17:07:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-12-07 17:07:56,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 178. [2019-12-07 17:07:56,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-12-07 17:07:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 225 transitions. [2019-12-07 17:07:56,556 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 225 transitions. Word has length 56 [2019-12-07 17:07:56,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:07:56,557 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 225 transitions. [2019-12-07 17:07:56,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-12-07 17:07:56,557 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 225 transitions. [2019-12-07 17:07:56,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 17:07:56,558 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:07:56,558 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:07:56,758 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 17:07:56,759 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:07:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:07:56,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1452186463, now seen corresponding path program 1 times [2019-12-07 17:07:56,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:07:56,760 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499798348] [2019-12-07 17:07:56,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:07:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:07:56,943 INFO L264 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:07:56,945 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:07:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-12-07 17:07:56,957 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:07:56,978 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-12-07 17:07:56,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499798348] [2019-12-07 17:07:56,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:07:56,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:07:56,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465837731] [2019-12-07 17:07:56,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:07:56,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:07:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:07:56,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:07:56,979 INFO L87 Difference]: Start difference. First operand 178 states and 225 transitions. Second operand 5 states. [2019-12-07 17:07:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:07:57,016 INFO L93 Difference]: Finished difference Result 211 states and 267 transitions. [2019-12-07 17:07:57,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:07:57,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-12-07 17:07:57,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:07:57,017 INFO L225 Difference]: With dead ends: 211 [2019-12-07 17:07:57,017 INFO L226 Difference]: Without dead ends: 211 [2019-12-07 17:07:57,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:07:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2019-12-07 17:07:57,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 186. [2019-12-07 17:07:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-12-07 17:07:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 231 transitions. [2019-12-07 17:07:57,023 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 231 transitions. Word has length 58 [2019-12-07 17:07:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:07:57,023 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 231 transitions. [2019-12-07 17:07:57,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:07:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 231 transitions. [2019-12-07 17:07:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 17:07:57,024 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:07:57,024 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:07:57,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 17:07:57,225 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:07:57,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:07:57,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1099970498, now seen corresponding path program 1 times [2019-12-07 17:07:57,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:07:57,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829308162] [2019-12-07 17:07:57,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:07:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:07:57,377 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 17:07:57,378 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:07:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-12-07 17:07:57,388 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:07:57,408 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-12-07 17:07:57,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829308162] [2019-12-07 17:07:57,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:07:57,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 17:07:57,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065045607] [2019-12-07 17:07:57,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:07:57,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:07:57,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:07:57,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:07:57,409 INFO L87 Difference]: Start difference. First operand 186 states and 231 transitions. Second operand 6 states. [2019-12-07 17:07:57,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:07:57,480 INFO L93 Difference]: Finished difference Result 197 states and 242 transitions. [2019-12-07 17:07:57,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:07:57,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-12-07 17:07:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:07:57,482 INFO L225 Difference]: With dead ends: 197 [2019-12-07 17:07:57,482 INFO L226 Difference]: Without dead ends: 197 [2019-12-07 17:07:57,482 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:07:57,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-12-07 17:07:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2019-12-07 17:07:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2019-12-07 17:07:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 233 transitions. [2019-12-07 17:07:57,487 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 233 transitions. Word has length 58 [2019-12-07 17:07:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:07:57,487 INFO L462 AbstractCegarLoop]: Abstraction has 188 states and 233 transitions. [2019-12-07 17:07:57,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:07:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 233 transitions. [2019-12-07 17:07:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 17:07:57,488 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:07:57,488 INFO L410 BasicCegarLoop]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:07:57,688 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-12-07 17:07:57,689 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:07:57,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:07:57,689 INFO L82 PathProgramCache]: Analyzing trace with hash 612578384, now seen corresponding path program 3 times [2019-12-07 17:07:57,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:07:57,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169488326] [2019-12-07 17:07:57,690 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:07:58,074 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2019-12-07 17:07:58,075 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:07:58,084 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjunts are in the unsatisfiable core [2019-12-07 17:07:58,085 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:07:58,097 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 17:07:58,097 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:07:58,101 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:07:58,101 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:07:58,101 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:07:58,519 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 41 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:07:58,519 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:08:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 41 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:08:04,964 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169488326] [2019-12-07 17:08:04,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:08:04,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2019-12-07 17:08:04,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914252003] [2019-12-07 17:08:04,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-12-07 17:08:04,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:08:04,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-12-07 17:08:04,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1309, Unknown=0, NotChecked=0, Total=1560 [2019-12-07 17:08:04,965 INFO L87 Difference]: Start difference. First operand 188 states and 233 transitions. Second operand 40 states. [2019-12-07 17:08:08,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:08:08,181 INFO L93 Difference]: Finished difference Result 174 states and 214 transitions. [2019-12-07 17:08:08,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 17:08:08,183 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 58 [2019-12-07 17:08:08,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:08:08,184 INFO L225 Difference]: With dead ends: 174 [2019-12-07 17:08:08,184 INFO L226 Difference]: Without dead ends: 174 [2019-12-07 17:08:08,185 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=456, Invalid=2406, Unknown=0, NotChecked=0, Total=2862 [2019-12-07 17:08:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-12-07 17:08:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2019-12-07 17:08:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-12-07 17:08:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2019-12-07 17:08:08,188 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 58 [2019-12-07 17:08:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:08:08,189 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2019-12-07 17:08:08,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-12-07 17:08:08,189 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2019-12-07 17:08:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-12-07 17:08:08,189 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:08:08,189 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:08:08,390 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-12-07 17:08:08,390 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:08:08,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:08,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1452868472, now seen corresponding path program 1 times [2019-12-07 17:08:08,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:08:08,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646150295] [2019-12-07 17:08:08,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/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 17:08:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:08,576 INFO L264 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 17:08:08,577 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:08,580 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 17:08:08,581 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:08,582 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:08:08,582 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:08,582 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:08:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 17:08:08,618 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:08:08,665 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_6| (Array (_ BitVec 32) (_ BitVec 1)))) (or (forall ((v_prenex_8 (_ BitVec 32))) (or (not (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_prenex_8))) (= (bvadd (select |c_#valid| v_prenex_8) (_ bv1 1)) (_ bv0 1)))) (exists ((v_entry_point_~array~0.base_BEFORE_CALL_5 (_ BitVec 32))) (and (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_entry_point_~array~0.base_BEFORE_CALL_5)) (not (= (_ bv1 1) (select |c_old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_5))))))) is different from false [2019-12-07 17:08:08,670 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_6| (Array (_ BitVec 32) (_ BitVec 1))) (v_prenex_8 (_ BitVec 32))) (or (not (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_prenex_8))) (= (bvadd (select |c_#valid| v_prenex_8) (_ bv1 1)) (_ bv0 1)) (exists ((v_entry_point_~array~0.base_BEFORE_CALL_5 (_ BitVec 32))) (and (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_entry_point_~array~0.base_BEFORE_CALL_5)) (not (= (_ bv1 1) (select |c_old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_5))))))) is different from false [2019-12-07 17:08:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 2 not checked. [2019-12-07 17:08:08,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646150295] [2019-12-07 17:08:08,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:08:08,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 10 [2019-12-07 17:08:08,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164883896] [2019-12-07 17:08:08,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 17:08:08,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:08:08,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 17:08:08,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=58, Unknown=2, NotChecked=30, Total=110 [2019-12-07 17:08:08,716 INFO L87 Difference]: Start difference. First operand 174 states and 214 transitions. Second operand 11 states. [2019-12-07 17:08:08,850 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_old(#valid)_BEFORE_CALL_6| (Array (_ BitVec 32) (_ BitVec 1))) (v_prenex_8 (_ BitVec 32))) (or (not (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_prenex_8))) (= (bvadd (select |c_#valid| v_prenex_8) (_ bv1 1)) (_ bv0 1)) (exists ((v_entry_point_~array~0.base_BEFORE_CALL_5 (_ BitVec 32))) (and (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_entry_point_~array~0.base_BEFORE_CALL_5)) (not (= (_ bv1 1) (select |c_old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_5))))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2019-12-07 17:08:08,853 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_old(#valid)_BEFORE_CALL_6| (Array (_ BitVec 32) (_ BitVec 1)))) (or (forall ((v_prenex_8 (_ BitVec 32))) (or (not (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_prenex_8))) (= (bvadd (select |c_#valid| v_prenex_8) (_ bv1 1)) (_ bv0 1)))) (exists ((v_entry_point_~array~0.base_BEFORE_CALL_5 (_ BitVec 32))) (and (= (_ bv1 1) (select |v_old(#valid)_BEFORE_CALL_6| v_entry_point_~array~0.base_BEFORE_CALL_5)) (not (= (_ bv1 1) (select |c_old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_5))))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2019-12-07 17:08:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:08:09,106 INFO L93 Difference]: Finished difference Result 213 states and 251 transitions. [2019-12-07 17:08:09,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 17:08:09,106 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-12-07 17:08:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:08:09,107 INFO L225 Difference]: With dead ends: 213 [2019-12-07 17:08:09,107 INFO L226 Difference]: Without dead ends: 213 [2019-12-07 17:08:09,108 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=168, Unknown=4, NotChecked=116, Total=342 [2019-12-07 17:08:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-12-07 17:08:09,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 185. [2019-12-07 17:08:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-12-07 17:08:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 225 transitions. [2019-12-07 17:08:09,112 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 225 transitions. Word has length 65 [2019-12-07 17:08:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:08:09,113 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 225 transitions. [2019-12-07 17:08:09,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 17:08:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 225 transitions. [2019-12-07 17:08:09,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-12-07 17:08:09,113 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:08:09,113 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:08:09,314 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2019-12-07 17:08:09,314 INFO L410 AbstractCegarLoop]: === Iteration 17 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:08:09,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:09,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1452868471, now seen corresponding path program 1 times [2019-12-07 17:08:09,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:08:09,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351464244] [2019-12-07 17:08:09,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2019-12-07 17:08:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:09,454 INFO L264 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 21 conjunts are in the unsatisfiable core [2019-12-07 17:08:09,455 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:09,464 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 17:08:09,464 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:09,468 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:08:09,468 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:09,468 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:08:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 17:08:09,558 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:08:09,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:08:09,950 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_8 (_ BitVec 32)) (|v_old(#length)_BEFORE_CALL_2| (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_4 (_ bv4 32)))) (or (bvule .cse0 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_8)) (exists ((v_prenex_10 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (let ((.cse1 (bvadd v_prenex_9 (_ bv4 32)))) (and (bvule v_prenex_9 .cse1) (bvule .cse1 (select |v_old(#length)_BEFORE_CALL_2| v_prenex_10)) (not (bvule .cse1 (select |c_old(#length)| v_prenex_10)))))) (not (bvule v_entry_point_~array~0.offset_BEFORE_CALL_4 .cse0)) (not (bvule .cse0 (select |v_old(#length)_BEFORE_CALL_2| v_entry_point_~array~0.base_BEFORE_CALL_8)))))) is different from false [2019-12-07 17:08:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 3 not checked. [2019-12-07 17:08:10,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351464244] [2019-12-07 17:08:10,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:08:10,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-12-07 17:08:10,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585645007] [2019-12-07 17:08:10,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-12-07 17:08:10,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:08:10,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-12-07 17:08:10,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=266, Unknown=1, NotChecked=32, Total=342 [2019-12-07 17:08:10,483 INFO L87 Difference]: Start difference. First operand 185 states and 225 transitions. Second operand 19 states. [2019-12-07 17:08:10,997 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_8 (_ BitVec 32)) (|v_old(#length)_BEFORE_CALL_2| (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_4 (_ bv4 32)))) (or (bvule .cse0 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_8)) (exists ((v_prenex_10 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (let ((.cse1 (bvadd v_prenex_9 (_ bv4 32)))) (and (bvule v_prenex_9 .cse1) (bvule .cse1 (select |v_old(#length)_BEFORE_CALL_2| v_prenex_10)) (not (bvule .cse1 (select |c_old(#length)| v_prenex_10)))))) (not (bvule v_entry_point_~array~0.offset_BEFORE_CALL_4 .cse0)) (not (bvule .cse0 (select |v_old(#length)_BEFORE_CALL_2| v_entry_point_~array~0.base_BEFORE_CALL_8)))))) (= |c_old(#length)| |c_#length|)) is different from false [2019-12-07 17:08:11,007 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_8 (_ BitVec 32)) (|v_old(#length)_BEFORE_CALL_2| (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_4 (_ bv4 32)))) (or (bvule .cse0 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_8)) (exists ((v_prenex_10 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (let ((.cse1 (bvadd v_prenex_9 (_ bv4 32)))) (and (bvule v_prenex_9 .cse1) (bvule .cse1 (select |v_old(#length)_BEFORE_CALL_2| v_prenex_10)) (not (bvule .cse1 (select |c_old(#length)| v_prenex_10)))))) (not (bvule v_entry_point_~array~0.offset_BEFORE_CALL_4 .cse0)) (not (bvule .cse0 (select |v_old(#length)_BEFORE_CALL_2| v_entry_point_~array~0.base_BEFORE_CALL_8)))))) (= |c_old(#length)| |c_#length|)) is different from false [2019-12-07 17:08:12,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:08:12,907 INFO L93 Difference]: Finished difference Result 244 states and 288 transitions. [2019-12-07 17:08:12,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 17:08:12,908 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2019-12-07 17:08:12,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:08:12,910 INFO L225 Difference]: With dead ends: 244 [2019-12-07 17:08:12,910 INFO L226 Difference]: Without dead ends: 244 [2019-12-07 17:08:12,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 110 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=108, Invalid=603, Unknown=3, NotChecked=156, Total=870 [2019-12-07 17:08:12,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-12-07 17:08:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 217. [2019-12-07 17:08:12,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-12-07 17:08:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 276 transitions. [2019-12-07 17:08:12,915 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 276 transitions. Word has length 65 [2019-12-07 17:08:12,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:08:12,916 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 276 transitions. [2019-12-07 17:08:12,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-12-07 17:08:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 276 transitions. [2019-12-07 17:08:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-12-07 17:08:12,916 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:08:12,916 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:08:13,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2019-12-07 17:08:13,117 INFO L410 AbstractCegarLoop]: === Iteration 18 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:08:13,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:13,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1258960697, now seen corresponding path program 1 times [2019-12-07 17:08:13,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:08:13,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131736417] [2019-12-07 17:08:13,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2019-12-07 17:08:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:13,269 INFO L264 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 17:08:13,270 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-12-07 17:08:13,297 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:08:13,383 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-12-07 17:08:13,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131736417] [2019-12-07 17:08:13,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:08:13,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-12-07 17:08:13,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180258760] [2019-12-07 17:08:13,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 17:08:13,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:08:13,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 17:08:13,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:08:13,384 INFO L87 Difference]: Start difference. First operand 217 states and 276 transitions. Second operand 9 states. [2019-12-07 17:08:13,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:08:13,503 INFO L93 Difference]: Finished difference Result 271 states and 338 transitions. [2019-12-07 17:08:13,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:08:13,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2019-12-07 17:08:13,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:08:13,506 INFO L225 Difference]: With dead ends: 271 [2019-12-07 17:08:13,506 INFO L226 Difference]: Without dead ends: 265 [2019-12-07 17:08:13,506 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:08:13,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-12-07 17:08:13,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 217. [2019-12-07 17:08:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-12-07 17:08:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 274 transitions. [2019-12-07 17:08:13,513 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 274 transitions. Word has length 66 [2019-12-07 17:08:13,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:08:13,513 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 274 transitions. [2019-12-07 17:08:13,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 17:08:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 274 transitions. [2019-12-07 17:08:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-12-07 17:08:13,514 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:08:13,514 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:08:13,714 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2019-12-07 17:08:13,715 INFO L410 AbstractCegarLoop]: === Iteration 19 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:08:13,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:08:13,715 INFO L82 PathProgramCache]: Analyzing trace with hash -2089249284, now seen corresponding path program 1 times [2019-12-07 17:08:13,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:08:13,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93539489] [2019-12-07 17:08:13,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2019-12-07 17:08:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:08:13,908 INFO L264 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 29 conjunts are in the unsatisfiable core [2019-12-07 17:08:13,909 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:08:13,915 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2019-12-07 17:08:13,915 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:13,921 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:08:13,921 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:13,921 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-12-07 17:08:13,966 INFO L343 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2019-12-07 17:08:13,966 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2019-12-07 17:08:13,966 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:13,977 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:08:13,977 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:13,977 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2019-12-07 17:08:14,078 INFO L343 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2019-12-07 17:08:14,078 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2019-12-07 17:08:14,078 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:14,097 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:08:14,097 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:14,097 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2019-12-07 17:08:14,263 INFO L343 Elim1Store]: treesize reduction 171, result has 17.8 percent of original size [2019-12-07 17:08:14,263 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 57 [2019-12-07 17:08:14,263 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:14,288 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:08:14,288 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:14,288 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:57, output treesize:53 [2019-12-07 17:08:14,582 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2019-12-07 17:08:14,582 INFO L343 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2019-12-07 17:08:14,582 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 172 [2019-12-07 17:08:14,583 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:14,671 INFO L614 ElimStorePlain]: treesize reduction 114, result has 30.9 percent of original size [2019-12-07 17:08:14,671 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:14,671 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2019-12-07 17:08:15,033 WARN L192 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 57 [2019-12-07 17:08:15,033 INFO L343 Elim1Store]: treesize reduction 112, result has 62.7 percent of original size [2019-12-07 17:08:15,034 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 59 treesize of output 214 [2019-12-07 17:08:15,034 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:15,149 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2019-12-07 17:08:15,150 INFO L614 ElimStorePlain]: treesize reduction 144, result has 29.4 percent of original size [2019-12-07 17:08:15,150 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:15,150 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2019-12-07 17:08:15,613 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2019-12-07 17:08:15,613 INFO L343 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2019-12-07 17:08:15,613 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 68 treesize of output 256 [2019-12-07 17:08:15,614 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:08:15,755 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-12-07 17:08:15,755 INFO L614 ElimStorePlain]: treesize reduction 174, result has 28.4 percent of original size [2019-12-07 17:08:15,755 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:08:15,755 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:73, output treesize:69 [2019-12-07 17:09:29,716 WARN L192 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 161 DAG size of output: 96 [2019-12-07 17:09:29,717 INFO L343 Elim1Store]: treesize reduction 209, result has 61.0 percent of original size [2019-12-07 17:09:29,717 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 80 treesize of output 359 [2019-12-07 17:09:29,718 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:09:29,885 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-12-07 17:09:29,886 INFO L614 ElimStorePlain]: treesize reduction 174, result has 31.8 percent of original size [2019-12-07 17:09:29,886 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:09:29,886 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:81 [2019-12-07 17:09:30,743 WARN L192 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 87 [2019-12-07 17:09:30,743 INFO L343 Elim1Store]: treesize reduction 322, result has 48.6 percent of original size [2019-12-07 17:09:30,743 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 86 treesize of output 340 [2019-12-07 17:09:30,744 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:09:30,959 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2019-12-07 17:09:30,959 INFO L614 ElimStorePlain]: treesize reduction 234, result has 27.1 percent of original size [2019-12-07 17:09:30,959 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:09:30,959 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:87 [2019-12-07 17:09:31,548 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 48 [2019-12-07 17:09:31,549 INFO L343 Elim1Store]: treesize reduction 644, result has 11.0 percent of original size [2019-12-07 17:09:31,549 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 93 treesize of output 116 [2019-12-07 17:09:31,549 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:09:31,612 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:09:31,612 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:09:31,612 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2019-12-07 17:09:32,452 INFO L343 Elim1Store]: treesize reduction 522, result has 0.2 percent of original size [2019-12-07 17:09:32,452 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 96 treesize of output 34 [2019-12-07 17:09:32,453 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:09:32,454 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:09:32,454 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:09:32,454 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:96, output treesize:3 [2019-12-07 17:09:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 17:09:32,573 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:13:37,099 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 84 [2019-12-07 17:13:37,107 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 191 [2019-12-07 17:13:37,108 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 17:13:37,217 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2019-12-07 17:13:37,217 INFO L614 ElimStorePlain]: treesize reduction 97, result has 45.2 percent of original size [2019-12-07 17:13:37,217 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:13:37,235 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:13:37,235 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:13:37,235 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:86, output treesize:80 [2019-12-07 17:13:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 126 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 17:13:37,462 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93539489] [2019-12-07 17:13:37,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:13:37,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2019-12-07 17:13:37,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918205954] [2019-12-07 17:13:37,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-12-07 17:13:37,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:13:37,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-12-07 17:13:37,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=567, Invalid=1747, Unknown=38, NotChecked=0, Total=2352 [2019-12-07 17:13:37,464 INFO L87 Difference]: Start difference. First operand 217 states and 274 transitions. Second operand 49 states. [2019-12-07 17:13:46,694 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-12-07 17:13:48,014 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-12-07 17:13:48,590 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-12-07 17:13:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:52,006 INFO L93 Difference]: Finished difference Result 258 states and 320 transitions. [2019-12-07 17:13:52,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-12-07 17:13:52,007 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 66 [2019-12-07 17:13:52,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:13:52,009 INFO L225 Difference]: With dead ends: 258 [2019-12-07 17:13:52,009 INFO L226 Difference]: Without dead ends: 258 [2019-12-07 17:13:52,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1176 ImplicationChecksByTransitivity, 251.2s TimeCoverageRelationStatistics Valid=1105, Invalid=4407, Unknown=38, NotChecked=0, Total=5550 [2019-12-07 17:13:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-12-07 17:13:52,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 241. [2019-12-07 17:13:52,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-12-07 17:13:52,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 309 transitions. [2019-12-07 17:13:52,019 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 309 transitions. Word has length 66 [2019-12-07 17:13:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:13:52,019 INFO L462 AbstractCegarLoop]: Abstraction has 241 states and 309 transitions. [2019-12-07 17:13:52,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-12-07 17:13:52,020 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 309 transitions. [2019-12-07 17:13:52,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-12-07 17:13:52,020 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:13:52,021 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:52,221 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2019-12-07 17:13:52,221 INFO L410 AbstractCegarLoop]: === Iteration 20 === [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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:13:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:52,222 INFO L82 PathProgramCache]: Analyzing trace with hash -342217912, now seen corresponding path program 1 times [2019-12-07 17:13:52,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:13:52,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660118124] [2019-12-07 17:13:52,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2019-12-07 17:13:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:52,393 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 30 conjunts are in the unsatisfiable core [2019-12-07 17:13:52,395 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:13:52,407 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2019-12-07 17:13:52,407 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:13:52,415 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:13:52,415 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:13:52,415 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2019-12-07 17:13:52,481 INFO L343 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2019-12-07 17:13:52,481 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2019-12-07 17:13:52,481 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:13:52,494 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:13:52,494 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:13:52,494 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2019-12-07 17:13:52,598 INFO L343 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2019-12-07 17:13:52,599 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2019-12-07 17:13:52,599 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:13:52,620 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:13:52,620 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:13:52,620 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:42 [2019-12-07 17:13:52,841 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2019-12-07 17:13:52,841 INFO L343 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2019-12-07 17:13:52,841 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 130 [2019-12-07 17:13:52,842 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:13:54,964 WARN L192 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2019-12-07 17:13:54,965 INFO L614 ElimStorePlain]: treesize reduction 84, result has 34.9 percent of original size [2019-12-07 17:13:54,965 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:13:54,965 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2019-12-07 17:14:31,798 WARN L192 SmtUtils]: Spent 36.73 s on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-12-07 17:14:31,799 INFO L343 Elim1Store]: treesize reduction 71, result has 69.9 percent of original size [2019-12-07 17:14:31,799 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 188 [2019-12-07 17:14:31,800 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:14:35,957 WARN L192 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 50 DAG size of output: 29 [2019-12-07 17:14:35,957 INFO L614 ElimStorePlain]: treesize reduction 154, result has 27.0 percent of original size [2019-12-07 17:14:35,957 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:14:35,958 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:61, output treesize:57 [2019-12-07 17:14:36,339 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 57 [2019-12-07 17:14:36,340 INFO L343 Elim1Store]: treesize reduction 112, result has 62.7 percent of original size [2019-12-07 17:14:36,340 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 59 treesize of output 214 [2019-12-07 17:14:36,341 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:14:36,468 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2019-12-07 17:14:36,468 INFO L614 ElimStorePlain]: treesize reduction 144, result has 30.4 percent of original size [2019-12-07 17:14:36,468 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:14:36,468 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2019-12-07 17:15:37,827 WARN L192 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 127 DAG size of output: 82 [2019-12-07 17:15:37,828 INFO L343 Elim1Store]: treesize reduction 151, result has 64.4 percent of original size [2019-12-07 17:15:37,828 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 71 treesize of output 302 [2019-12-07 17:15:37,829 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:15:40,014 WARN L192 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2019-12-07 17:15:40,015 INFO L614 ElimStorePlain]: treesize reduction 262, result has 22.3 percent of original size [2019-12-07 17:15:40,015 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:15:40,015 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2019-12-07 17:15:40,746 WARN L192 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2019-12-07 17:15:40,747 INFO L343 Elim1Store]: treesize reduction 240, result has 52.6 percent of original size [2019-12-07 17:15:40,747 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 77 treesize of output 298 [2019-12-07 17:15:40,748 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:15:40,950 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2019-12-07 17:15:40,951 INFO L614 ElimStorePlain]: treesize reduction 204, result has 28.4 percent of original size [2019-12-07 17:15:40,951 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:15:40,951 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:81 [2019-12-07 17:16:13,744 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 17:16:13,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660118124] [2019-12-07 17:16:13,745 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2019-12-07 17:16:13,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [57029043] [2019-12-07 17:16:13,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 17:16:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:14,348 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 39 conjunts are in the unsatisfiable core [2019-12-07 17:16:14,349 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:16:14,350 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2019-12-07 17:16:14,350 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365199310] [2019-12-07 17:16:14,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_996eb692-bd2a-48ea-ae6c-f562260341ce/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:16:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:14,497 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 42 conjunts are in the unsatisfiable core [2019-12-07 17:16:14,498 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:16:14,499 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@b4b05d3 [2019-12-07 17:16:14,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:14,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 17:16:14,499 ERROR L206 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2019-12-07 17:16:14,499 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:16:15,103 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3,22 cvc4 --incremental --print-success --lang smt --rewrite-divk,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:16:15,124 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 17:16:15,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:16:15 BoogieIcfgContainer [2019-12-07 17:16:15,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:16:15,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:16:15,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:16:15,125 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:16:15,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:05:29" (3/4) ... [2019-12-07 17:16:15,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:16:15,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:16:15,129 INFO L168 Benchmark]: Toolchain (without parser) took 646690.68 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 232.8 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -250.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:16:15,129 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 17:16:15,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:15,129 INFO L168 Benchmark]: Boogie Preprocessor took 65.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:16:15,129 INFO L168 Benchmark]: RCFGBuilder took 986.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.0 MB in the end (delta: 135.1 MB). Peak memory consumption was 135.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:15,130 INFO L168 Benchmark]: TraceAbstraction took 645200.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.9 MB). Free memory was 961.0 MB in the beginning and 1.2 GB in the end (delta: -236.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:16:15,130 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:16:15,131 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 432.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 986.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.0 MB in the end (delta: 135.1 MB). Peak memory consumption was 135.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 645200.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.9 MB). Free memory was 961.0 MB in the beginning and 1.2 GB in the end (delta: -236.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.18 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L797] CALL entry_point() [L784] int i; [L785] int len = 10; [L786] CALL, EXPR ldv_malloc(sizeof(struct A17*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L786] RET, EXPR ldv_malloc(sizeof(struct A17*)*len) [L786] struct A17 **array = (struct A17 **)ldv_malloc(sizeof(struct A17*)*len); [L787] COND TRUE \read(**array) [L788] i=0 [L788] COND TRUE i=0) [L775] return - -3; [L791] RET alloc_17(array, len) [L792] CALL free_17(array, len) [L778] int i; [L779] i=0 [L779] COND TRUE i