./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 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_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 2a86b9fab61553f9a54467f5b62ac500f38719cf .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 03:00:27,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:00:27,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:00:27,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:00:27,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:00:27,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:00:27,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:00:27,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:00:27,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:00:27,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:00:27,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:00:27,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:00:27,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:00:27,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:00:27,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:00:27,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:00:27,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:00:27,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:00:27,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:00:27,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:00:27,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:00:27,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:00:27,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:00:27,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:00:27,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:00:27,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:00:27,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:00:27,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:00:27,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:00:27,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:00:27,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:00:27,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:00:27,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:00:27,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:00:27,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:00:27,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:00:27,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:00:27,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:00:27,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:00:27,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:00:27,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:00:27,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 03:00:27,475 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:00:27,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:00:27,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:00:27,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:00:27,479 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:00:27,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:00:27,479 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:00:27,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:00:27,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:00:27,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:00:27,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:00:27,480 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 03:00:27,481 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 03:00:27,481 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 03:00:27,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:00:27,481 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 03:00:27,481 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 03:00:27,481 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:00:27,482 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:00:27,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:00:27,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:00:27,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:00:27,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:00:27,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:00:27,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:00:27,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:00:27,483 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 03:00:27,483 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 03:00:27,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 03:00:27,484 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_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 -> 2a86b9fab61553f9a54467f5b62ac500f38719cf [2019-11-20 03:00:27,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:00:27,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:00:27,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:00:27,638 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:00:27,638 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:00:27,639 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2019-11-20 03:00:27,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/data/80edf7a63/29341038edf54b898c7b942e21c0050a/FLAG4bd225ebd [2019-11-20 03:00:28,178 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:00:28,178 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2019-11-20 03:00:28,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/data/80edf7a63/29341038edf54b898c7b942e21c0050a/FLAG4bd225ebd [2019-11-20 03:00:28,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/data/80edf7a63/29341038edf54b898c7b942e21c0050a [2019-11-20 03:00:28,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:00:28,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 03:00:28,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:00:28,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:00:28,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:00:28,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:00:28" (1/1) ... [2019-11-20 03:00:28,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14bff35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:28, skipping insertion in model container [2019-11-20 03:00:28,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:00:28" (1/1) ... [2019-11-20 03:00:28,726 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:00:28,779 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:00:29,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:00:29,340 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:00:29,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:00:29,474 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:00:29,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29 WrapperNode [2019-11-20 03:00:29,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:00:29,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:00:29,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:00:29,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:00:29,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... [2019-11-20 03:00:29,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... [2019-11-20 03:00:29,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... [2019-11-20 03:00:29,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... [2019-11-20 03:00:29,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... [2019-11-20 03:00:29,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... [2019-11-20 03:00:29,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... [2019-11-20 03:00:29,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:00:29,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:00:29,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:00:29,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:00:29,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 03:00:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:00:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 03:00:29,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 03:00:29,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 03:00:29,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 03:00:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 03:00:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 03:00:29,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 03:00:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 03:00:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 03:00:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 03:00:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 03:00:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 03:00:29,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 03:00:29,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 03:00:29,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 03:00:29,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 03:00:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 03:00:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 03:00:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 03:00:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 03:00:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 03:00:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 03:00:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 03:00:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 03:00:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 03:00:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 03:00:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 03:00:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 03:00:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 03:00:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 03:00:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 03:00:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 03:00:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 03:00:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 03:00:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 03:00:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 03:00:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 03:00:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 03:00:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 03:00:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 03:00:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 03:00:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 03:00:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 03:00:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 03:00:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 03:00:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 03:00:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 03:00:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 03:00:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 03:00:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 03:00:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 03:00:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 03:00:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 03:00:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 03:00:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 03:00:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 03:00:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 03:00:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 03:00:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 03:00:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 03:00:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 03:00:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 03:00:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 03:00:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 03:00:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 03:00:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 03:00:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 03:00:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 03:00:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 03:00:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 03:00:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 03:00:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 03:00:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 03:00:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 03:00:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 03:00:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 03:00:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 03:00:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 03:00:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 03:00:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 03:00:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 03:00:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 03:00:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 03:00:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 03:00:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 03:00:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 03:00:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 03:00:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 03:00:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 03:00:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 03:00:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 03:00:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 03:00:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 03:00:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 03:00:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 03:00:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 03:00:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 03:00:29,644 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 03:00:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 03:00:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 03:00:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 03:00:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 03:00:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 03:00:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 03:00:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 03:00:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 03:00:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 03:00:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 03:00:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 03:00:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 03:00:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 03:00:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 03:00:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 03:00:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 03:00:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 03:00:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 03:00:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 03:00:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 03:00:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 03:00:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 03:00:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 03:00:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 03:00:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 03:00:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 03:00:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 03:00:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 03:00:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 03:00:29,650 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 03:00:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 03:00:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 03:00:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 03:00:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 03:00:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 03:00:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 03:00:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 03:00:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 03:00:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 03:00:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 03:00:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 03:00:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 03:00:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 03:00:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 03:00:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 03:00:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 03:00:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 03:00:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 03:00:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 03:00:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 03:00:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 03:00:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 03:00:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 03:00:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 03:00:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 03:00:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 03:00:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 03:00:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 03:00:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 03:00:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 03:00:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 03:00:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 03:00:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 03:00:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 03:00:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 03:00:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 03:00:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 03:00:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 03:00:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 03:00:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 03:00:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 03:00:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 03:00:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 03:00:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 03:00:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 03:00:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 03:00:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:00:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 03:00:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 03:00:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 03:00:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 03:00:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 03:00:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 03:00:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 03:00:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 03:00:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 03:00:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 03:00:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 03:00:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 03:00:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 03:00:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 03:00:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 03:00:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 03:00:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 03:00:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 03:00:29,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 03:00:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 03:00:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 03:00:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 03:00:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 03:00:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 03:00:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 03:00:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 03:00:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 03:00:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:00:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 03:00:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:00:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 03:00:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 03:00:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 03:00:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 03:00:30,266 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 03:00:30,666 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 03:00:31,067 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:00:31,076 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 03:00:31,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:31 BoogieIcfgContainer [2019-11-20 03:00:31,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:00:31,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:00:31,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:00:31,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:00:31,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:00:28" (1/3) ... [2019-11-20 03:00:31,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de94164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:00:31, skipping insertion in model container [2019-11-20 03:00:31,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:29" (2/3) ... [2019-11-20 03:00:31,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de94164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:00:31, skipping insertion in model container [2019-11-20 03:00:31,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:31" (3/3) ... [2019-11-20 03:00:31,085 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-1.i [2019-11-20 03:00:31,094 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:00:31,103 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-20 03:00:31,114 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-20 03:00:31,136 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:00:31,136 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 03:00:31,136 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:00:31,136 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:00:31,136 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:00:31,137 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:00:31,137 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:00:31,137 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:00:31,157 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2019-11-20 03:00:31,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 03:00:31,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:31,167 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 03:00:31,168 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:31,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:31,175 INFO L82 PathProgramCache]: Analyzing trace with hash 120577495, now seen corresponding path program 1 times [2019-11-20 03:00:31,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:31,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [250974826] [2019-11-20 03:00:31,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:31,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 03:00:31,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:31,571 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 03:00:31,572 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:00:31,578 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:00:31,579 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:00:31,579 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 03:00:31,616 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 03:00:31,616 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:31,672 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 03:00:31,673 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [250974826] [2019-11-20 03:00:31,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:31,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 03:00:31,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443316334] [2019-11-20 03:00:31,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:00:31,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:31,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:00:31,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:00:31,698 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 5 states. [2019-11-20 03:00:31,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:31,968 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2019-11-20 03:00:31,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:00:31,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 03:00:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:31,994 INFO L225 Difference]: With dead ends: 74 [2019-11-20 03:00:31,994 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 03:00:31,998 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 03:00:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 03:00:32,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2019-11-20 03:00:32,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-20 03:00:32,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2019-11-20 03:00:32,052 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 17 [2019-11-20 03:00:32,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:32,052 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2019-11-20 03:00:32,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:00:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2019-11-20 03:00:32,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 03:00:32,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:32,054 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 03:00:32,264 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:32,265 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:32,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:32,265 INFO L82 PathProgramCache]: Analyzing trace with hash 120577496, now seen corresponding path program 1 times [2019-11-20 03:00:32,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:32,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1077542069] [2019-11-20 03:00:32,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:32,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 03:00:32,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:32,548 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 03:00:32,548 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:00:32,559 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:00:32,559 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:00:32,559 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 03:00:32,604 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 03:00:32,604 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:32,917 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 03:00:32,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077542069] [2019-11-20 03:00:32,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:32,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-20 03:00:32,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576309763] [2019-11-20 03:00:32,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 03:00:32,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:32,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 03:00:32,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-20 03:00:32,921 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand 10 states. [2019-11-20 03:00:33,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:33,366 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2019-11-20 03:00:33,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:00:33,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-20 03:00:33,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:33,369 INFO L225 Difference]: With dead ends: 70 [2019-11-20 03:00:33,369 INFO L226 Difference]: Without dead ends: 70 [2019-11-20 03:00:33,370 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-20 03:00:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-20 03:00:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2019-11-20 03:00:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-20 03:00:33,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2019-11-20 03:00:33,379 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 17 [2019-11-20 03:00:33,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:33,379 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2019-11-20 03:00:33,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 03:00:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2019-11-20 03:00:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 03:00:33,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:33,380 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 03:00:33,583 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:33,583 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:33,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:33,584 INFO L82 PathProgramCache]: Analyzing trace with hash 149206646, now seen corresponding path program 1 times [2019-11-20 03:00:33,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:33,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [45465472] [2019-11-20 03:00:33,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:33,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:00:33,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:33,915 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 03:00:33,915 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:33,980 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 03:00:33,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [45465472] [2019-11-20 03:00:33,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:33,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 03:00:33,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179300707] [2019-11-20 03:00:33,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:00:33,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:33,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:00:33,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:00:33,982 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 5 states. [2019-11-20 03:00:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:34,010 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2019-11-20 03:00:34,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:00:34,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 03:00:34,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:34,013 INFO L225 Difference]: With dead ends: 64 [2019-11-20 03:00:34,013 INFO L226 Difference]: Without dead ends: 64 [2019-11-20 03:00:34,014 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 03:00:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-20 03:00:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2019-11-20 03:00:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-20 03:00:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2019-11-20 03:00:34,021 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2019-11-20 03:00:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:34,021 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2019-11-20 03:00:34,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:00:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2019-11-20 03:00:34,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 03:00:34,022 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:34,023 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:34,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:34,230 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:34,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:34,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1768010814, now seen corresponding path program 1 times [2019-11-20 03:00:34,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:34,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1039429085] [2019-11-20 03:00:34,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:34,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 03:00:34,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:34,466 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 03:00:34,466 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:34,577 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 03:00:34,577 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1039429085] [2019-11-20 03:00:34,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:34,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 03:00:34,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019606128] [2019-11-20 03:00:34,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:00:34,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:34,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:00:34,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:00:34,579 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 5 states. [2019-11-20 03:00:34,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:34,596 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2019-11-20 03:00:34,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:00:34,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 03:00:34,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:34,599 INFO L225 Difference]: With dead ends: 64 [2019-11-20 03:00:34,600 INFO L226 Difference]: Without dead ends: 64 [2019-11-20 03:00:34,600 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:00:34,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-20 03:00:34,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2019-11-20 03:00:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-20 03:00:34,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2019-11-20 03:00:34,607 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 22 [2019-11-20 03:00:34,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:34,607 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2019-11-20 03:00:34,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:00:34,607 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2019-11-20 03:00:34,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 03:00:34,608 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:34,608 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:34,808 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:34,809 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:34,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:34,809 INFO L82 PathProgramCache]: Analyzing trace with hash 730005123, now seen corresponding path program 1 times [2019-11-20 03:00:34,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:34,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [594593010] [2019-11-20 03:00:34,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:35,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 03:00:35,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:35,059 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 03:00:35,059 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:35,155 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 03:00:35,155 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [594593010] [2019-11-20 03:00:35,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:35,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 03:00:35,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655432913] [2019-11-20 03:00:35,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:00:35,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:35,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:00:35,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:00:35,157 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 3 states. [2019-11-20 03:00:35,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:35,227 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2019-11-20 03:00:35,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:00:35,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-20 03:00:35,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:35,232 INFO L225 Difference]: With dead ends: 68 [2019-11-20 03:00:35,232 INFO L226 Difference]: Without dead ends: 58 [2019-11-20 03:00:35,233 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:00:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-20 03:00:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-11-20 03:00:35,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-20 03:00:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2019-11-20 03:00:35,239 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 22 [2019-11-20 03:00:35,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:35,240 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2019-11-20 03:00:35,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:00:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2019-11-20 03:00:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 03:00:35,241 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:35,241 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:35,444 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:35,444 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:35,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:35,445 INFO L82 PathProgramCache]: Analyzing trace with hash -734714589, now seen corresponding path program 1 times [2019-11-20 03:00:35,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:35,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [703122159] [2019-11-20 03:00:35,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:35,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 03:00:35,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:35,690 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 03:00:35,690 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:35,764 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 03:00:35,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [703122159] [2019-11-20 03:00:35,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:35,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 03:00:35,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407525751] [2019-11-20 03:00:35,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 03:00:35,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:35,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 03:00:35,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:00:35,766 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2019-11-20 03:00:35,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:35,817 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2019-11-20 03:00:35,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:00:35,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-20 03:00:35,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:35,823 INFO L225 Difference]: With dead ends: 64 [2019-11-20 03:00:35,823 INFO L226 Difference]: Without dead ends: 60 [2019-11-20 03:00:35,823 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:00:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-20 03:00:35,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-11-20 03:00:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-20 03:00:35,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2019-11-20 03:00:35,830 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 32 [2019-11-20 03:00:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:35,830 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2019-11-20 03:00:35,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 03:00:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2019-11-20 03:00:35,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 03:00:35,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:35,832 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:36,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:36,038 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:36,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:36,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1771101565, now seen corresponding path program 1 times [2019-11-20 03:00:36,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:36,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1519980740] [2019-11-20 03:00:36,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:36,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 03:00:36,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:36,323 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:36,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1519980740] [2019-11-20 03:00:36,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:00:36,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-20 03:00:36,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556358865] [2019-11-20 03:00:36,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 03:00:36,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:36,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 03:00:36,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-20 03:00:36,443 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 10 states. [2019-11-20 03:00:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:36,676 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2019-11-20 03:00:36,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 03:00:36,680 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-20 03:00:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:36,681 INFO L225 Difference]: With dead ends: 68 [2019-11-20 03:00:36,681 INFO L226 Difference]: Without dead ends: 64 [2019-11-20 03:00:36,682 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-20 03:00:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-20 03:00:36,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-11-20 03:00:36,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-11-20 03:00:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2019-11-20 03:00:36,689 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 34 [2019-11-20 03:00:36,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:36,689 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2019-11-20 03:00:36,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 03:00:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2019-11-20 03:00:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 03:00:36,691 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:36,691 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:36,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:36,897 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:36,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:36,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1571056317, now seen corresponding path program 2 times [2019-11-20 03:00:36,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:36,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2090458294] [2019-11-20 03:00:36,898 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:37,112 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 03:00:37,112 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 03:00:37,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 03:00:37,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:37,125 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 03:00:37,125 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:00:37,127 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:00:37,127 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:00:37,127 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 03:00:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-20 03:00:37,273 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-20 03:00:37,368 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2090458294] [2019-11-20 03:00:37,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:37,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-20 03:00:37,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086532244] [2019-11-20 03:00:37,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 03:00:37,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:37,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 03:00:37,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-20 03:00:37,370 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 13 states. [2019-11-20 03:00:37,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:37,964 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2019-11-20 03:00:37,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 03:00:37,965 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-11-20 03:00:37,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:37,966 INFO L225 Difference]: With dead ends: 63 [2019-11-20 03:00:37,966 INFO L226 Difference]: Without dead ends: 63 [2019-11-20 03:00:37,966 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-20 03:00:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-20 03:00:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-11-20 03:00:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-20 03:00:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2019-11-20 03:00:37,972 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 38 [2019-11-20 03:00:37,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:37,973 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2019-11-20 03:00:37,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 03:00:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2019-11-20 03:00:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 03:00:37,974 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:37,974 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:38,177 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:38,178 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:38,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:38,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1571056316, now seen corresponding path program 1 times [2019-11-20 03:00:38,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:38,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [510878337] [2019-11-20 03:00:38,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:38,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 03:00:38,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:38,593 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:38,899 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:38,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [510878337] [2019-11-20 03:00:38,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:00:38,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-20 03:00:38,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478036256] [2019-11-20 03:00:38,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 03:00:38,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:38,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 03:00:38,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-20 03:00:38,901 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand 18 states. [2019-11-20 03:00:39,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:39,865 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2019-11-20 03:00:39,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-20 03:00:39,867 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-20 03:00:39,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:39,868 INFO L225 Difference]: With dead ends: 75 [2019-11-20 03:00:39,868 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 03:00:39,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-20 03:00:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 03:00:39,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-11-20 03:00:39,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-20 03:00:39,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2019-11-20 03:00:39,874 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 38 [2019-11-20 03:00:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:39,874 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2019-11-20 03:00:39,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 03:00:39,875 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2019-11-20 03:00:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 03:00:39,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:39,876 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:40,080 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:40,081 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:40,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:40,081 INFO L82 PathProgramCache]: Analyzing trace with hash 905861828, now seen corresponding path program 2 times [2019-11-20 03:00:40,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:40,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1644225539] [2019-11-20 03:00:40,082 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/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 03:00:40,328 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 03:00:40,328 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 03:00:40,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-20 03:00:40,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:40,346 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 03:00:40,346 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:00:40,354 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:00:40,354 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:00:40,354 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 03:00:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-20 03:00:40,663 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-20 03:00:41,532 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1644225539] [2019-11-20 03:00:41,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:41,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-20 03:00:41,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586793946] [2019-11-20 03:00:41,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-20 03:00:41,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:41,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-20 03:00:41,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-20 03:00:41,534 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 23 states. [2019-11-20 03:00:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:43,011 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2019-11-20 03:00:43,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 03:00:43,012 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-20 03:00:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:43,013 INFO L225 Difference]: With dead ends: 70 [2019-11-20 03:00:43,013 INFO L226 Difference]: Without dead ends: 70 [2019-11-20 03:00:43,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-20 03:00:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-20 03:00:43,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-11-20 03:00:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-20 03:00:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2019-11-20 03:00:43,018 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 46 [2019-11-20 03:00:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:43,019 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2019-11-20 03:00:43,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-20 03:00:43,019 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2019-11-20 03:00:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 03:00:43,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:43,021 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:43,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:43,225 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:43,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1162659866, now seen corresponding path program 1 times [2019-11-20 03:00:43,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:43,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [927398624] [2019-11-20 03:00:43,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:43,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 03:00:43,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:43,728 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:44,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [927398624] [2019-11-20 03:00:44,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:00:44,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-20 03:00:44,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794382753] [2019-11-20 03:00:44,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-20 03:00:44,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:44,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-20 03:00:44,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2019-11-20 03:00:44,673 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 34 states. [2019-11-20 03:00:45,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:45,841 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2019-11-20 03:00:45,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-20 03:00:45,853 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-20 03:00:45,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:45,854 INFO L225 Difference]: With dead ends: 76 [2019-11-20 03:00:45,854 INFO L226 Difference]: Without dead ends: 72 [2019-11-20 03:00:45,855 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2019-11-20 03:00:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-11-20 03:00:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-11-20 03:00:45,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-20 03:00:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2019-11-20 03:00:45,867 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 51 [2019-11-20 03:00:45,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:45,868 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2019-11-20 03:00:45,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-20 03:00:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2019-11-20 03:00:45,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-20 03:00:45,870 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:45,870 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:46,075 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:46,075 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:46,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1097236102, now seen corresponding path program 2 times [2019-11-20 03:00:46,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:46,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [479618599] [2019-11-20 03:00:46,076 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:46,373 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 03:00:46,373 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 03:00:46,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 03:00:46,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:46,387 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 03:00:46,387 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:00:46,389 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:00:46,390 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:00:46,390 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 03:00:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:46,625 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:46,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [479618599] [2019-11-20 03:00:46,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:46,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-20 03:00:46,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573457437] [2019-11-20 03:00:46,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 03:00:46,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:46,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 03:00:46,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-20 03:00:46,736 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand 13 states. [2019-11-20 03:00:47,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:47,305 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2019-11-20 03:00:47,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 03:00:47,306 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2019-11-20 03:00:47,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:47,307 INFO L225 Difference]: With dead ends: 70 [2019-11-20 03:00:47,307 INFO L226 Difference]: Without dead ends: 70 [2019-11-20 03:00:47,307 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-20 03:00:47,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-20 03:00:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-11-20 03:00:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-20 03:00:47,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2019-11-20 03:00:47,311 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 53 [2019-11-20 03:00:47,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:47,311 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2019-11-20 03:00:47,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 03:00:47,311 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2019-11-20 03:00:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-20 03:00:47,313 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:47,313 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:47,513 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:47,514 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:47,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:47,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1097236103, now seen corresponding path program 1 times [2019-11-20 03:00:47,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:47,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [995707440] [2019-11-20 03:00:47,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:47,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-20 03:00:47,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:47,911 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 03:00:47,912 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 03:00:47,917 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 03:00:47,917 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 03:00:47,917 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 03:00:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:48,215 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:49,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [995707440] [2019-11-20 03:00:49,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:49,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-20 03:00:49,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039089834] [2019-11-20 03:00:49,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-20 03:00:49,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:49,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-20 03:00:49,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-20 03:00:49,080 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 23 states. [2019-11-20 03:00:50,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:50,224 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2019-11-20 03:00:50,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 03:00:50,224 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 53 [2019-11-20 03:00:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:50,225 INFO L225 Difference]: With dead ends: 68 [2019-11-20 03:00:50,225 INFO L226 Difference]: Without dead ends: 68 [2019-11-20 03:00:50,226 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-20 03:00:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-20 03:00:50,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-11-20 03:00:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-20 03:00:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2019-11-20 03:00:50,229 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 53 [2019-11-20 03:00:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:50,230 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2019-11-20 03:00:50,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-20 03:00:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2019-11-20 03:00:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 03:00:50,231 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:50,231 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:50,436 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:50,436 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:50,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:50,436 INFO L82 PathProgramCache]: Analyzing trace with hash -935548641, now seen corresponding path program 1 times [2019-11-20 03:00:50,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:50,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1673989465] [2019-11-20 03:00:50,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:50,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:00:50,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:50,666 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:50,837 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:50,838 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1673989465] [2019-11-20 03:00:50,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:50,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-20 03:00:50,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669724801] [2019-11-20 03:00:50,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 03:00:50,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:50,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 03:00:50,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 03:00:50,839 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand 8 states. [2019-11-20 03:00:50,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:50,897 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2019-11-20 03:00:50,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:00:50,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-11-20 03:00:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:50,899 INFO L225 Difference]: With dead ends: 70 [2019-11-20 03:00:50,899 INFO L226 Difference]: Without dead ends: 68 [2019-11-20 03:00:50,899 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-20 03:00:50,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-20 03:00:50,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-11-20 03:00:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-20 03:00:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2019-11-20 03:00:50,902 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 51 [2019-11-20 03:00:50,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:50,903 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2019-11-20 03:00:50,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 03:00:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2019-11-20 03:00:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 03:00:50,904 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:50,904 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:51,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:51,111 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash 923461308, now seen corresponding path program 1 times [2019-11-20 03:00:51,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:51,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1709955706] [2019-11-20 03:00:51,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:51,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 03:00:51,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:51,423 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 03:00:51,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 03:00:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-20 03:00:51,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1709955706] [2019-11-20 03:00:51,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:51,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-20 03:00:51,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643388013] [2019-11-20 03:00:51,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 03:00:51,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 03:00:51,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 03:00:51,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-20 03:00:51,691 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 11 states. [2019-11-20 03:00:51,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:51,785 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2019-11-20 03:00:51,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 03:00:51,785 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2019-11-20 03:00:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:51,786 INFO L225 Difference]: With dead ends: 72 [2019-11-20 03:00:51,786 INFO L226 Difference]: Without dead ends: 68 [2019-11-20 03:00:51,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-20 03:00:51,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-20 03:00:51,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-11-20 03:00:51,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-20 03:00:51,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2019-11-20 03:00:51,790 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 56 [2019-11-20 03:00:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:51,791 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2019-11-20 03:00:51,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 03:00:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2019-11-20 03:00:51,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-20 03:00:51,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:51,793 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:51,996 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:51,996 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 03:00:51,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:51,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1423933729, now seen corresponding path program 1 times [2019-11-20 03:00:51,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 03:00:51,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [387659186] [2019-11-20 03:00:51,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0855f8a4-f138-4315-90c4-0fe7bc513aa1/bin/uautomizer/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:00:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:01:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:01:01,645 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 03:01:01,654 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 03:01:01,874 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 03:01:01,894 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2019-11-20 03:01:01,900 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-20 03:01:01,905 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 03:01:01,906 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 03:01:01,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:01:01 BoogieIcfgContainer [2019-11-20 03:01:01,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:01:01,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:01:01,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:01:01,918 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:01:01,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:31" (3/4) ... [2019-11-20 03:01:01,922 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 03:01:01,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:01:01,923 INFO L168 Benchmark]: Toolchain (without parser) took 33211.63 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 330.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 126.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:01,924 INFO L168 Benchmark]: CDTParser took 0.19 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 03:01:01,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:01,925 INFO L168 Benchmark]: Boogie Preprocessor took 93.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:01,925 INFO L168 Benchmark]: RCFGBuilder took 1508.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.8 MB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:01,926 INFO L168 Benchmark]: TraceAbstraction took 30839.09 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 217.6 MB). Free memory was 958.8 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:01,926 INFO L168 Benchmark]: Witness Printer took 4.36 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:01:01,928 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 762.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1508.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.8 MB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 30839.09 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 217.6 MB). Free memory was 958.8 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.36 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 762]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 762. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={1661493519:0}] [L763] CALL entry_point() VAL [ldv_global_msg_list={1661493519:0}] [L759] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={1661493519:0}] [L760] CALL, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={1661493519:0}] [L741] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={1661493519:0}] [L742] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16, ldv_global_msg_list={1661493519:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=16, \result={-2147483644:0}, ldv_global_msg_list={1661493519:0}, malloc(size)={-2147483644:0}, size=16] [L742] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={1661493519:0}, ldv_malloc(sizeof(*kobj))={-2147483644:0}] [L742] kobj = ldv_malloc(sizeof(*kobj)) [L743] COND FALSE !(!kobj) VAL [kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L745] FCALL memset(kobj, 0, sizeof(*kobj)) VAL [kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}, memset(kobj, 0, sizeof(*kobj))={-2147483644:0}] [L746] CALL ldv_kobject_init(kobj) VAL [kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L731] COND FALSE !(!kobj) VAL [kobj={-2147483644:0}, kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L734] CALL ldv_kobject_init_internal(kobj) VAL [kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L724] COND FALSE !(!kobj) VAL [kobj={-2147483644:0}, kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L726] CALL ldv_kref_init(&kobj->kref) VAL [kref={-2147483644:12}, ldv_global_msg_list={1661493519:0}] [L683] ((&kref->refcount)->counter) = (1) VAL [kref={-2147483644:12}, kref={-2147483644:12}, ldv_global_msg_list={1661493519:0}] [L726] RET ldv_kref_init(&kobj->kref) VAL [kobj={-2147483644:0}, kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L727] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [ldv_global_msg_list={1661493519:0}, list={-2147483644:4}] [L541] list->next = list VAL [ldv_global_msg_list={1661493519:0}, list={-2147483644:4}, list={-2147483644:4}] [L542] list->prev = list VAL [ldv_global_msg_list={1661493519:0}, list={-2147483644:4}, list={-2147483644:4}] [L727] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={-2147483644:0}, kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L734] RET ldv_kobject_init_internal(kobj) VAL [kobj={-2147483644:0}, kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L746] RET ldv_kobject_init(kobj) VAL [kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L747] return kobj; VAL [\result={-2147483644:0}, kobj={-2147483644:0}, ldv_global_msg_list={1661493519:0}] [L760] RET, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={1661493519:0}, ldv_kobject_create()={-2147483644:0}] [L760] kobj = ldv_kobject_create() [L763] RET entry_point() VAL [ldv_global_msg_list={1661493519:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 324 locations, 71 error locations. Result: UNSAFE, OverallTime: 30.7s, OverallIterations: 16, TraceHistogramMax: 16, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 756 SDtfs, 380 SDslu, 4138 SDs, 0 SdLazy, 2413 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1109 GetRequests, 905 SyntacticMatches, 17 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 614 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1064 ConstructedInterpolants, 50 QuantifiedInterpolants, 160774 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2245 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 1340/1598 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...