./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 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_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/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 09bd2b4d877b02d6e4448e44897944243667e3ce ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 10:59:59,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:59:59,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:59:59,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:59:59,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:59:59,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:59:59,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:59:59,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:59:59,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:59:59,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:59:59,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:59:59,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:59:59,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:59:59,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:59:59,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:59:59,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:59:59,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:59:59,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:59:59,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:59:59,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:59:59,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:59:59,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:59:59,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:59:59,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:59:59,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:59:59,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:59:59,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:59:59,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:59:59,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:59:59,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:59:59,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:59:59,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:59:59,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:59:59,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:59:59,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:59:59,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:59:59,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:59:59,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:59:59,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:59:59,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:59:59,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:59:59,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 10:59:59,754 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:59:59,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:59:59,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:59:59,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:59:59,756 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:59:59,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:59:59,756 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:59:59,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:59:59,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:59:59,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:59:59,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:59:59,757 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 10:59:59,757 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 10:59:59,758 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 10:59:59,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:59:59,758 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:59:59,758 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:59:59,758 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:59:59,758 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:59:59,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:59:59,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:59:59,759 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:59:59,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:59:59,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:59:59,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:59:59,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:59:59,760 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:59:59,760 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:59:59,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:59:59,761 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_67eef47b-3d06-47a4-9acf-64aa4e5aa412/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 -> 09bd2b4d877b02d6e4448e44897944243667e3ce [2019-11-20 10:59:59,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:59:59,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:59:59,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:59:59,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:59:59,947 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:59:59,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2019-11-20 11:00:00,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/data/7215c478b/8ebd7d41f5c54ee09c0f9f081839e21f/FLAG0179d23ce [2019-11-20 11:00:00,516 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:00:00,517 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2019-11-20 11:00:00,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/data/7215c478b/8ebd7d41f5c54ee09c0f9f081839e21f/FLAG0179d23ce [2019-11-20 11:00:01,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/data/7215c478b/8ebd7d41f5c54ee09c0f9f081839e21f [2019-11-20 11:00:01,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:00:01,024 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 11:00:01,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:00:01,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:00:01,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:00:01,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:01,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a212b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01, skipping insertion in model container [2019-11-20 11:00:01,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:01,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:00:01,107 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:00:01,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:00:01,790 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:00:01,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:00:01,958 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:00:01,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01 WrapperNode [2019-11-20 11:00:01,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:00:01,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:00:01,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:00:01,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:00:01,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:01,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:01,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:01,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:02,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:02,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:02,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... [2019-11-20 11:00:02,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:00:02,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:00:02,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:00:02,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:00:02,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/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 [2019-11-20 11:00:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 11:00:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:00:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:00:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 11:00:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 11:00:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 11:00:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 11:00:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 11:00:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 11:00:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 11:00:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 11:00:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 11:00:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:00:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 11:00:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 11:00:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 11:00:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 11:00:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 11:00:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 11:00:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 11:00:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 11:00:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 11:00:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 11:00:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 11:00:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 11:00:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 11:00:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 11:00:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 11:00:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 11:00:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 11:00:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 11:00:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 11:00:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 11:00:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 11:00:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 11:00:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 11:00:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 11:00:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 11:00:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 11:00:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 11:00:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 11:00:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 11:00:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 11:00:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 11:00:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 11:00:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 11:00:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 11:00:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 11:00:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 11:00:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 11:00:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 11:00:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 11:00:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 11:00:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 11:00:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 11:00:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 11:00:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 11:00:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 11:00:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 11:00:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 11:00:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 11:00:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 11:00:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 11:00:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 11:00:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 11:00:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 11:00:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 11:00:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 11:00:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 11:00:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 11:00:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 11:00:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 11:00:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 11:00:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 11:00:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 11:00:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 11:00:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 11:00:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 11:00:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 11:00:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 11:00:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 11:00:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 11:00:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 11:00:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 11:00:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 11:00:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 11:00:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 11:00:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 11:00:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 11:00:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 11:00:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 11:00:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 11:00:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 11:00:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 11:00:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 11:00:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 11:00:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 11:00:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 11:00:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 11:00:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 11:00:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 11:00:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 11:00:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 11:00:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 11:00:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 11:00:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 11:00:02,163 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 11:00:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 11:00:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 11:00:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 11:00:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 11:00:02,164 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 11:00:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 11:00:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 11:00:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 11:00:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 11:00:02,165 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 11:00:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 11:00:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 11:00:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 11:00:02,166 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 11:00:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 11:00:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 11:00:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 11:00:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 11:00:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 11:00:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 11:00:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 11:00:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 11:00:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 11:00:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 11:00:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 11:00:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 11:00:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 11:00:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 11:00:02,170 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 11:00:02,170 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 11:00:02,170 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 11:00:02,170 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 11:00:02,170 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 11:00:02,171 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 11:00:02,171 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 11:00:02,171 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 11:00:02,171 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 11:00:02,171 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 11:00:02,172 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 11:00:02,172 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 11:00:02,172 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 11:00:02,172 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 11:00:02,172 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 11:00:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 11:00:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 11:00:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 11:00:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 11:00:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 11:00:02,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 11:00:02,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 11:00:02,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 11:00:02,174 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 11:00:02,174 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 11:00:02,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 11:00:02,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 11:00:02,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 11:00:02,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 11:00:02,175 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:00:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 11:00:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 11:00:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 11:00:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 11:00:02,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 11:00:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 11:00:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 11:00:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 11:00:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 11:00:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 11:00:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 11:00:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:00:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 11:00:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 11:00:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 11:00:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 11:00:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 11:00:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:00:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:00:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 11:00:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 11:00:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:00:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 11:00:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 11:00:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 11:00:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 11:00:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 11:00:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 11:00:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 11:00:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 11:00:02,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 11:00:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 11:00:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 11:00:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 11:00:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 11:00:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 11:00:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 11:00:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 11:00:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 11:00:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:00:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 11:00:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:00:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 11:00:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 11:00:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 11:00:02,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 11:00:02,810 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:00:03,279 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:00:03,748 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:00:03,748 INFO L285 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-20 11:00:03,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:00:03 BoogieIcfgContainer [2019-11-20 11:00:03,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:00:03,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:00:03,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:00:03,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:00:03,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:00:01" (1/3) ... [2019-11-20 11:00:03,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3702090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:00:03, skipping insertion in model container [2019-11-20 11:00:03,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:00:01" (2/3) ... [2019-11-20 11:00:03,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3702090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:00:03, skipping insertion in model container [2019-11-20 11:00:03,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:00:03" (3/3) ... [2019-11-20 11:00:03,766 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2019-11-20 11:00:03,776 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:00:03,786 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 81 error locations. [2019-11-20 11:00:03,797 INFO L249 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2019-11-20 11:00:03,819 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:00:03,820 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 11:00:03,820 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:00:03,820 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:00:03,820 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:00:03,820 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:00:03,820 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:00:03,820 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:00:03,845 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-11-20 11:00:03,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:00:03,856 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:00:03,857 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:00:03,858 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:00:03,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:00:03,864 INFO L82 PathProgramCache]: Analyzing trace with hash 902709096, now seen corresponding path program 1 times [2019-11-20 11:00:03,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:00:03,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [8608436] [2019-11-20 11:00:03,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:00:04,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:00:04,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:00:04,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:04,296 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:00:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:04,440 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [8608436] [2019-11-20 11:00:04,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:00:04,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:00:04,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115333530] [2019-11-20 11:00:04,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:00:04,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:00:04,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:00:04,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:00:04,475 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 5 states. [2019-11-20 11:00:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:00:04,727 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2019-11-20 11:00:04,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:00:04,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 11:00:04,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:00:04,748 INFO L225 Difference]: With dead ends: 78 [2019-11-20 11:00:04,748 INFO L226 Difference]: Without dead ends: 75 [2019-11-20 11:00:04,750 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 [2019-11-20 11:00:04,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-20 11:00:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2019-11-20 11:00:04,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-20 11:00:04,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2019-11-20 11:00:04,804 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2019-11-20 11:00:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:00:04,805 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2019-11-20 11:00:04,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:00:04,805 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2019-11-20 11:00:04,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:00:04,807 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:00:04,807 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:00:05,010 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:05,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:00:05,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:00:05,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1649447865, now seen corresponding path program 1 times [2019-11-20 11:00:05,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:00:05,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [374587361] [2019-11-20 11:00:05,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:00:05,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:00:05,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:00:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:05,358 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:00:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:05,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [374587361] [2019-11-20 11:00:05,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:00:05,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:00:05,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232901669] [2019-11-20 11:00:05,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:00:05,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:00:05,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:00:05,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:00:05,426 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 3 states. [2019-11-20 11:00:05,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:00:05,571 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-11-20 11:00:05,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:00:05,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 11:00:05,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:00:05,574 INFO L225 Difference]: With dead ends: 76 [2019-11-20 11:00:05,574 INFO L226 Difference]: Without dead ends: 73 [2019-11-20 11:00:05,575 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 [2019-11-20 11:00:05,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-20 11:00:05,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2019-11-20 11:00:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-20 11:00:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2019-11-20 11:00:05,585 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2019-11-20 11:00:05,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:00:05,585 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-11-20 11:00:05,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:00:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2019-11-20 11:00:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 11:00:05,587 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:00:05,587 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:00:05,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:05,791 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:00:05,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:00:05,792 INFO L82 PathProgramCache]: Analyzing trace with hash -2081301391, now seen corresponding path program 1 times [2019-11-20 11:00:05,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:00:05,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [940471082] [2019-11-20 11:00:05,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:00:06,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:00:06,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:00:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:06,081 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:00:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:06,123 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [940471082] [2019-11-20 11:00:06,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:00:06,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 11:00:06,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378573788] [2019-11-20 11:00:06,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:00:06,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:00:06,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:00:06,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:00:06,125 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 6 states. [2019-11-20 11:00:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:00:06,232 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2019-11-20 11:00:06,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:00:06,234 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-20 11:00:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:00:06,236 INFO L225 Difference]: With dead ends: 92 [2019-11-20 11:00:06,236 INFO L226 Difference]: Without dead ends: 92 [2019-11-20 11:00:06,237 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:00:06,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-20 11:00:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2019-11-20 11:00:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-20 11:00:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2019-11-20 11:00:06,264 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2019-11-20 11:00:06,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:00:06,265 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2019-11-20 11:00:06,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:00:06,265 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2019-11-20 11:00:06,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 11:00:06,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:00:06,267 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:00:06,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:06,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:00:06,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:00:06,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1625657181, now seen corresponding path program 1 times [2019-11-20 11:00:06,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:00:06,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [365108273] [2019-11-20 11:00:06,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:00:06,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 11:00:06,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:00:06,821 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 [2019-11-20 11:00:06,822 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:06,826 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:06,826 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:00:06,826 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 11:00:06,940 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:06,940 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 [2019-11-20 11:00:06,941 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:06,974 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 11:00:06,975 INFO L496 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. [2019-11-20 11:00:06,975 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-20 11:00:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:07,010 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:00:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:11,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [365108273] [2019-11-20 11:00:11,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:00:11,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-20 11:00:11,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246865508] [2019-11-20 11:00:11,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 11:00:11,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:00:11,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 11:00:11,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-20 11:00:11,479 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 13 states. [2019-11-20 11:00:29,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:00:29,048 INFO L93 Difference]: Finished difference Result 173 states and 204 transitions. [2019-11-20 11:00:29,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 11:00:29,049 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-11-20 11:00:29,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:00:29,052 INFO L225 Difference]: With dead ends: 173 [2019-11-20 11:00:29,052 INFO L226 Difference]: Without dead ends: 173 [2019-11-20 11:00:29,053 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=66, Invalid=239, Unknown=1, NotChecked=0, Total=306 [2019-11-20 11:00:29,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-20 11:00:29,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 75. [2019-11-20 11:00:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-20 11:00:29,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2019-11-20 11:00:29,073 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 23 [2019-11-20 11:00:29,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:00:29,074 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2019-11-20 11:00:29,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 11:00:29,074 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2019-11-20 11:00:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 11:00:29,076 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:00:29,076 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:00:29,277 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:29,277 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:00:29,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:00:29,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1625657180, now seen corresponding path program 1 times [2019-11-20 11:00:29,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:00:29,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [308191869] [2019-11-20 11:00:29,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:00:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:00:29,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-20 11:00:29,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:00:29,588 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 [2019-11-20 11:00:29,588 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:29,604 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:29,608 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 [2019-11-20 11:00:29,608 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:29,622 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:29,622 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:00:29,622 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 11:00:31,783 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 11:00:31,784 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 11:00:31,785 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:31,807 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:31,821 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:31,822 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 [2019-11-20 11:00:31,822 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:31,833 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:31,834 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:00:31,834 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-20 11:00:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:31,860 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:00:32,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:00:34,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:00:34,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:00:34,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:00:34,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:00:34,319 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:00:34,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 11:00:34,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:00:34,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:00:45,040 WARN L191 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 11:00:45,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:00:51,619 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_194|], 2=[|v_#length_151|]} [2019-11-20 11:00:51,630 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 [2019-11-20 11:00:51,630 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:51,638 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:51,640 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 11:00:51,640 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:51,648 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:51,648 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:00:51,648 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-20 11:00:52,298 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 11:00:52,310 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 [2019-11-20 11:00:52,311 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:52,346 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:52,350 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 11:00:52,360 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 11:00:52,375 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:00:52,376 INFO L496 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. [2019-11-20 11:00:52,376 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-20 11:00:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:00:52,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [308191869] [2019-11-20 11:00:52,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:00:52,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-20 11:00:52,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085217181] [2019-11-20 11:00:52,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 11:00:52,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:00:52,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 11:00:52,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=259, Unknown=5, NotChecked=0, Total=306 [2019-11-20 11:00:52,504 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand 18 states. [2019-11-20 11:01:31,308 WARN L191 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 55 DAG size of output: 26 [2019-11-20 11:01:50,357 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_entry_point_~array~0.base)) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2)) (.cse1 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (exists ((v_prenex_1 (_ BitVec 32)) (v_ldv_malloc_~size_31 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)) (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_31) v_entry_point_~array~0.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (= (bvadd (select |c_#length| c_entry_point_~array~0.base) (_ bv4294967256 32)) (_ bv0 32)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (= c_entry_point_~i~0 (_ bv0 32)) (= (_ bv0 32) c_entry_point_~array~0.offset) (exists ((v_prenex_2 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))) is different from false [2019-11-20 11:01:59,814 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-11-20 11:02:00,399 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 11:02:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:13,664 INFO L93 Difference]: Finished difference Result 185 states and 234 transitions. [2019-11-20 11:02:13,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 11:02:13,665 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2019-11-20 11:02:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:02:13,668 INFO L225 Difference]: With dead ends: 185 [2019-11-20 11:02:13,668 INFO L226 Difference]: Without dead ends: 185 [2019-11-20 11:02:13,669 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=94, Invalid=495, Unknown=15, NotChecked=46, Total=650 [2019-11-20 11:02:13,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-11-20 11:02:13,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 92. [2019-11-20 11:02:13,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-20 11:02:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 127 transitions. [2019-11-20 11:02:13,684 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 127 transitions. Word has length 23 [2019-11-20 11:02:13,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:02:13,685 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 127 transitions. [2019-11-20 11:02:13,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 11:02:13,685 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2019-11-20 11:02:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 11:02:13,686 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:02:13,686 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:13,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:13,887 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:02:13,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:13,887 INFO L82 PathProgramCache]: Analyzing trace with hash -2131215806, now seen corresponding path program 1 times [2019-11-20 11:02:13,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:02:13,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1226133571] [2019-11-20 11:02:13,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:14,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:02:14,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:02:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:02:14,138 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:02:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:02:14,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1226133571] [2019-11-20 11:02:14,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 11:02:14,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-20 11:02:14,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603523005] [2019-11-20 11:02:14,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:02:14,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:02:14,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:02:14,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:02:14,186 INFO L87 Difference]: Start difference. First operand 92 states and 127 transitions. Second operand 5 states. [2019-11-20 11:02:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:14,279 INFO L93 Difference]: Finished difference Result 74 states and 96 transitions. [2019-11-20 11:02:14,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:02:14,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 11:02:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:02:14,280 INFO L225 Difference]: With dead ends: 74 [2019-11-20 11:02:14,280 INFO L226 Difference]: Without dead ends: 72 [2019-11-20 11:02:14,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:02:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-11-20 11:02:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-11-20 11:02:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-20 11:02:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2019-11-20 11:02:14,287 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 23 [2019-11-20 11:02:14,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:02:14,288 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2019-11-20 11:02:14,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:02:14,288 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2019-11-20 11:02:14,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 11:02:14,289 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:02:14,289 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:14,492 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:14,493 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:02:14,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1111503791, now seen corresponding path program 1 times [2019-11-20 11:02:14,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:02:14,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [12158091] [2019-11-20 11:02:14,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:14,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:02:14,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:02:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:02:14,700 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:02:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:02:14,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [12158091] [2019-11-20 11:02:14,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:02:14,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:02:14,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528859666] [2019-11-20 11:02:14,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:02:14,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:02:14,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:02:14,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:02:14,746 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand 5 states. [2019-11-20 11:02:14,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:14,815 INFO L93 Difference]: Finished difference Result 94 states and 121 transitions. [2019-11-20 11:02:14,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:02:14,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 11:02:14,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:02:14,818 INFO L225 Difference]: With dead ends: 94 [2019-11-20 11:02:14,818 INFO L226 Difference]: Without dead ends: 94 [2019-11-20 11:02:14,818 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:02:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-20 11:02:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 78. [2019-11-20 11:02:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 11:02:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2019-11-20 11:02:14,835 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 25 [2019-11-20 11:02:14,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:02:14,838 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2019-11-20 11:02:14,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:02:14,838 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2019-11-20 11:02:14,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 11:02:14,842 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:02:14,842 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:15,042 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:15,043 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:02:15,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:15,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1440653170, now seen corresponding path program 1 times [2019-11-20 11:02:15,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:02:15,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [981394664] [2019-11-20 11:02:15,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:15,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:02:15,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:02:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 11:02:15,260 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:02:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 11:02:15,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [981394664] [2019-11-20 11:02:15,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:02:15,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 11:02:15,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437263225] [2019-11-20 11:02:15,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:02:15,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:02:15,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:02:15,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:02:15,293 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 6 states. [2019-11-20 11:02:15,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:15,371 INFO L93 Difference]: Finished difference Result 77 states and 91 transitions. [2019-11-20 11:02:15,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:02:15,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-20 11:02:15,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:02:15,373 INFO L225 Difference]: With dead ends: 77 [2019-11-20 11:02:15,373 INFO L226 Difference]: Without dead ends: 77 [2019-11-20 11:02:15,373 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:02:15,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-20 11:02:15,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 70. [2019-11-20 11:02:15,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-20 11:02:15,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2019-11-20 11:02:15,378 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 25 [2019-11-20 11:02:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:02:15,379 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2019-11-20 11:02:15,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:02:15,379 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2019-11-20 11:02:15,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 11:02:15,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:02:15,380 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:15,583 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:15,583 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:02:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:15,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1710576442, now seen corresponding path program 1 times [2019-11-20 11:02:15,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:02:15,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1962298891] [2019-11-20 11:02:15,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:15,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:02:15,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:02:15,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:02:15,866 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:02:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:02:15,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1962298891] [2019-11-20 11:02:15,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:02:15,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-20 11:02:15,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248909070] [2019-11-20 11:02:15,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:02:15,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:02:15,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:02:15,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:02:15,944 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 9 states. [2019-11-20 11:02:16,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:02:16,127 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2019-11-20 11:02:16,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:02:16,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2019-11-20 11:02:16,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:02:16,129 INFO L225 Difference]: With dead ends: 69 [2019-11-20 11:02:16,129 INFO L226 Difference]: Without dead ends: 69 [2019-11-20 11:02:16,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:02:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-20 11:02:16,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-11-20 11:02:16,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-20 11:02:16,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2019-11-20 11:02:16,133 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 82 transitions. Word has length 26 [2019-11-20 11:02:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:02:16,134 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 82 transitions. [2019-11-20 11:02:16,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:02:16,134 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 82 transitions. [2019-11-20 11:02:16,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 11:02:16,135 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:02:16,135 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:02:16,335 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:16,335 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:02:16,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:02:16,336 INFO L82 PathProgramCache]: Analyzing trace with hash 142617433, now seen corresponding path program 1 times [2019-11-20 11:02:16,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:02:16,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [490346278] [2019-11-20 11:02:16,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67eef47b-3d06-47a4-9acf-64aa4e5aa412/bin/uautomizer/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:02:16,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 11:02:16,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:02:16,563 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:02:16,563 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 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-20 11:02:16,563 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:02:16,578 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 11:02:16,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:02:16,579 INFO L496 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. [2019-11-20 11:02:16,579 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 11:02:16,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:02:16,585 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:02:16,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:02:16,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:02:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 11:02:22,736 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:02:27,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:02:27,061 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 11:02:27,064 INFO L168 Benchmark]: Toolchain (without parser) took 146040.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 944.7 MB in the beginning and 912.8 MB in the end (delta: 31.9 MB). Peak memory consumption was 209.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:27,065 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:02:27,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 934.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:27,066 INFO L168 Benchmark]: Boogie Preprocessor took 116.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:27,067 INFO L168 Benchmark]: RCFGBuilder took 1674.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.3 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:27,071 INFO L168 Benchmark]: TraceAbstraction took 143312.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 967.9 MB in the beginning and 912.8 MB in the end (delta: 55.2 MB). Peak memory consumption was 105.5 MB. Max. memory is 11.5 GB. [2019-11-20 11:02:27,073 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 934.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 116.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1674.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.3 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 143312.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 967.9 MB in the beginning and 912.8 MB in the end (delta: 55.2 MB). Peak memory consumption was 105.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...