./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 46ca4cc321f66643bb303146077f836b6b81d33d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 07:04:02,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:04:02,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:04:02,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:04:02,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:04:02,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:04:02,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:04:02,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:04:02,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:04:02,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:04:02,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:04:02,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:04:02,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:04:02,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:04:02,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:04:02,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:04:02,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:04:02,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:04:02,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:04:02,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:04:02,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:04:02,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:04:02,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:04:02,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:04:02,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:04:02,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:04:02,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:04:02,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:04:02,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:04:02,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:04:02,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:04:02,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:04:02,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:04:02,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:04:02,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:04:02,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:04:02,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:04:02,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:04:02,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:04:02,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:04:02,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:04:02,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 07:04:02,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:04:02,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:04:02,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:04:02,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:04:02,809 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:04:02,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:04:02,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:04:02,809 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 07:04:02,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:04:02,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:04:02,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:04:02,810 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 07:04:02,810 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 07:04:02,810 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 07:04:02,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:04:02,811 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 07:04:02,811 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 07:04:02,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:04:02,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:04:02,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:04:02,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:04:02,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:04:02,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:04:02,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:04:02,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:04:02,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:04:02,813 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 07:04:02,813 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 07:04:02,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 07:04:02,814 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_f01f9b9b-3191-43d1-be9c-59098937da59/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 -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-20 07:04:03,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:04:03,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:04:03,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:04:03,049 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:04:03,051 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:04:03,052 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-20 07:04:03,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/data/9fccb504b/045bbeb058964532964b5f3278b6cb52/FLAG704b2f4d4 [2019-11-20 07:04:03,646 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:04:03,647 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-20 07:04:03,681 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/data/9fccb504b/045bbeb058964532964b5f3278b6cb52/FLAG704b2f4d4 [2019-11-20 07:04:03,937 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/bin/uautomizer/data/9fccb504b/045bbeb058964532964b5f3278b6cb52 [2019-11-20 07:04:03,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:04:03,940 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 07:04:03,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:04:03,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:04:03,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:04:03,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:04:03" (1/1) ... [2019-11-20 07:04:03,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5c786d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:03, skipping insertion in model container [2019-11-20 07:04:03,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:04:03" (1/1) ... [2019-11-20 07:04:03,959 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:04:04,020 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:04:04,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:04:04,536 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:04:04,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:04:04,699 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:04:04,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04 WrapperNode [2019-11-20 07:04:04,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:04:04,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:04:04,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:04:04,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:04:04,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... [2019-11-20 07:04:04,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... [2019-11-20 07:04:04,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... [2019-11-20 07:04:04,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... [2019-11-20 07:04:04,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... [2019-11-20 07:04:04,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... [2019-11-20 07:04:04,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... [2019-11-20 07:04:04,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:04:04,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:04:04,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:04:04,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:04:04,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:04,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 07:04:04,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:04:04,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 07:04:04,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 07:04:04,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 07:04:04,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 07:04:04,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 07:04:04,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 07:04:04,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 07:04:04,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 07:04:04,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 07:04:04,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 07:04:04,938 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 07:04:04,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 07:04:04,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 07:04:04,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 07:04:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 07:04:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 07:04:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 07:04:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 07:04:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 07:04:04,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 07:04:04,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 07:04:04,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 07:04:04,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 07:04:04,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 07:04:04,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 07:04:04,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 07:04:04,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 07:04:04,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 07:04:04,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 07:04:04,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 07:04:04,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 07:04:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 07:04:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 07:04:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 07:04:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 07:04:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 07:04:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 07:04:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 07:04:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 07:04:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 07:04:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 07:04:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 07:04:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 07:04:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 07:04:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 07:04:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 07:04:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 07:04:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 07:04:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 07:04:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 07:04:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 07:04:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 07:04:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 07:04:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 07:04:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 07:04:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 07:04:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 07:04:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 07:04:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 07:04:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 07:04:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 07:04:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 07:04:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 07:04:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 07:04:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 07:04:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 07:04:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 07:04:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 07:04:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 07:04:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 07:04:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 07:04:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 07:04:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 07:04:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 07:04:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 07:04:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 07:04:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 07:04:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 07:04:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 07:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 07:04:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 07:04:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 07:04:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 07:04:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 07:04:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 07:04:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 07:04:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 07:04:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 07:04:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 07:04:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 07:04:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 07:04:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 07:04:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 07:04:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 07:04:04,960 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 07:04:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 07:04:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 07:04:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 07:04:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 07:04:04,961 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 07:04:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 07:04:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 07:04:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 07:04:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 07:04:04,962 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 07:04:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 07:04:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 07:04:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 07:04:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 07:04:04,963 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 07:04:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 07:04:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 07:04:04,964 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 07:04:04,965 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 07:04:04,965 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 07:04:04,965 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 07:04:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 07:04:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 07:04:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 07:04:04,966 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 07:04:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 07:04:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 07:04:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 07:04:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 07:04:04,967 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 07:04:04,968 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 07:04:04,968 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 07:04:04,968 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 07:04:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 07:04:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 07:04:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 07:04:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 07:04:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 07:04:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 07:04:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 07:04:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 07:04:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 07:04:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 07:04:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 07:04:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 07:04:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 07:04:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 07:04:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 07:04:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 07:04:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 07:04:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 07:04:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 07:04:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 07:04:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 07:04:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 07:04:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 07:04:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 07:04:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 07:04:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 07:04:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 07:04:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 07:04:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 07:04:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 07:04:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 07:04:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 07:04:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 07:04:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 07:04:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 07:04:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 07:04:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 07:04:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 07:04:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 07:04:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 07:04:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 07:04:04,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 07:04:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 07:04:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 07:04:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 07:04:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 07:04:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 07:04:04,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 07:04:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 07:04:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 07:04:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 07:04:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 07:04:04,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 07:04:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 07:04:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 07:04:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 07:04:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 07:04:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 07:04:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 07:04:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 07:04:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 07:04:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 07:04:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 07:04:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 07:04:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 07:04:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 07:04:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 07:04:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 07:04:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 07:04:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 07:04:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 07:04:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 07:04:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 07:04:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 07:04:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 07:04:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 07:04:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:04:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 07:04:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 07:04:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 07:04:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 07:04:05,760 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 07:04:06,236 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 07:04:06,667 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:04:06,667 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 07:04:06,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:04:06 BoogieIcfgContainer [2019-11-20 07:04:06,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:04:06,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:04:06,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:04:06,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:04:06,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:04:03" (1/3) ... [2019-11-20 07:04:06,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc36230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:04:06, skipping insertion in model container [2019-11-20 07:04:06,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:04:04" (2/3) ... [2019-11-20 07:04:06,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc36230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:04:06, skipping insertion in model container [2019-11-20 07:04:06,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:04:06" (3/3) ... [2019-11-20 07:04:06,678 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-20 07:04:06,689 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:04:06,698 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-20 07:04:06,711 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-20 07:04:06,738 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:04:06,738 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 07:04:06,738 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:04:06,738 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:04:06,738 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:04:06,739 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:04:06,739 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:04:06,739 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:04:06,766 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-20 07:04:06,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 07:04:06,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:06,777 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:06,778 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:06,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1299630744, now seen corresponding path program 1 times [2019-11-20 07:04:06,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:06,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [453934580] [2019-11-20 07:04:06,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:07,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:04:07,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:07,226 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 07:04:07,227 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:07,351 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 07:04:07,352 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [453934580] [2019-11-20 07:04:07,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:04:07,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 07:04:07,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714630863] [2019-11-20 07:04:07,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:04:07,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:07,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:04:07,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:07,384 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-20 07:04:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:07,474 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-20 07:04:07,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:04:07,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 07:04:07,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:07,492 INFO L225 Difference]: With dead ends: 53 [2019-11-20 07:04:07,493 INFO L226 Difference]: Without dead ends: 50 [2019-11-20 07:04:07,495 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:07,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-20 07:04:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-20 07:04:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 07:04:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-20 07:04:07,569 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-20 07:04:07,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:07,570 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-20 07:04:07,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:04:07,570 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-20 07:04:07,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 07:04:07,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:07,574 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:07,778 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:07,784 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash 443179591, now seen corresponding path program 1 times [2019-11-20 07:04:07,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:07,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1440635617] [2019-11-20 07:04:07,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:08,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:04:08,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:08,074 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 07:04:08,074 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:08,136 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 07:04:08,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1440635617] [2019-11-20 07:04:08,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:04:08,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 07:04:08,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061143053] [2019-11-20 07:04:08,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:04:08,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:08,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:04:08,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:04:08,139 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-20 07:04:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:08,201 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-20 07:04:08,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:04:08,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-20 07:04:08,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:08,203 INFO L225 Difference]: With dead ends: 46 [2019-11-20 07:04:08,204 INFO L226 Difference]: Without dead ends: 43 [2019-11-20 07:04:08,204 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 07:04:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-20 07:04:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-20 07:04:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 07:04:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-20 07:04:08,212 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-20 07:04:08,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:08,212 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-20 07:04:08,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:04:08,213 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-20 07:04:08,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 07:04:08,214 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:08,214 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:08,418 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:08,422 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1246513499, now seen corresponding path program 1 times [2019-11-20 07:04:08,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:08,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1329413796] [2019-11-20 07:04:08,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:08,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:04:08,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:08,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:08,720 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:08,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1329413796] [2019-11-20 07:04:08,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:04:08,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 07:04:08,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895175308] [2019-11-20 07:04:08,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:04:08,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:08,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:04:08,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:08,770 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-20 07:04:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:08,783 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-20 07:04:08,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:04:08,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-20 07:04:08,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:08,785 INFO L225 Difference]: With dead ends: 30 [2019-11-20 07:04:08,785 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 07:04:08,785 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 07:04:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 07:04:08,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 07:04:08,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 07:04:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-20 07:04:08,791 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-20 07:04:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:08,791 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-20 07:04:08,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:04:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-20 07:04:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 07:04:08,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:08,793 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:08,993 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:08,994 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:08,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:08,994 INFO L82 PathProgramCache]: Analyzing trace with hash -12786823, now seen corresponding path program 1 times [2019-11-20 07:04:08,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:08,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1722770820] [2019-11-20 07:04:08,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:09,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:04:09,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:09,409 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:09,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1722770820] [2019-11-20 07:04:09,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:04:09,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-20 07:04:09,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723818613] [2019-11-20 07:04:09,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 07:04:09,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:09,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:04:09,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:04:09,557 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 9 states. [2019-11-20 07:04:09,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:09,727 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-20 07:04:09,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:04:09,730 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-20 07:04:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:09,731 INFO L225 Difference]: With dead ends: 29 [2019-11-20 07:04:09,731 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 07:04:09,731 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:04:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 07:04:09,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-20 07:04:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 07:04:09,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-20 07:04:09,736 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-20 07:04:09,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:09,736 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-20 07:04:09,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 07:04:09,737 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-20 07:04:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 07:04:09,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:09,737 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:09,938 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:09,938 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:09,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:09,939 INFO L82 PathProgramCache]: Analyzing trace with hash -396391139, now seen corresponding path program 1 times [2019-11-20 07:04:09,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:09,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1247329335] [2019-11-20 07:04:09,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:10,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:04:10,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:10,249 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 07:04:10,249 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:04:10,253 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:04:10,253 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:04:10,253 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 07:04:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:10,283 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:10,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1247329335] [2019-11-20 07:04:10,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:04:10,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 07:04:10,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280063296] [2019-11-20 07:04:10,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:04:10,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:10,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:04:10,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:10,341 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-20 07:04:10,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:10,417 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-20 07:04:10,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:04:10,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 07:04:10,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:10,419 INFO L225 Difference]: With dead ends: 35 [2019-11-20 07:04:10,419 INFO L226 Difference]: Without dead ends: 35 [2019-11-20 07:04:10,419 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 07:04:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-20 07:04:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-20 07:04:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 07:04:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-20 07:04:10,431 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-20 07:04:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:10,432 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-20 07:04:10,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:04:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-20 07:04:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 07:04:10,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:10,434 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:10,634 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:10,637 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:10,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:10,640 INFO L82 PathProgramCache]: Analyzing trace with hash 491112542, now seen corresponding path program 1 times [2019-11-20 07:04:10,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:10,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [480339104] [2019-11-20 07:04:10,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:10,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:04:10,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:10,865 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:10,897 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [480339104] [2019-11-20 07:04:10,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:04:10,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 07:04:10,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631445005] [2019-11-20 07:04:10,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:04:10,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:10,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:04:10,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:10,899 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-20 07:04:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:10,931 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-20 07:04:10,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:04:10,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 07:04:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:10,934 INFO L225 Difference]: With dead ends: 42 [2019-11-20 07:04:10,934 INFO L226 Difference]: Without dead ends: 42 [2019-11-20 07:04:10,934 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 07:04:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-20 07:04:10,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-20 07:04:10,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 07:04:10,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-20 07:04:10,939 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-20 07:04:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:10,940 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-20 07:04:10,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:04:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-20 07:04:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 07:04:10,941 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:10,941 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:11,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:11,142 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:11,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:11,142 INFO L82 PathProgramCache]: Analyzing trace with hash 596776955, now seen corresponding path program 1 times [2019-11-20 07:04:11,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:11,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [738677930] [2019-11-20 07:04:11,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:11,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:04:11,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:11,362 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:11,394 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [738677930] [2019-11-20 07:04:11,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:04:11,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 07:04:11,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477950532] [2019-11-20 07:04:11,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:04:11,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:11,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:04:11,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:11,395 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-20 07:04:11,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:11,407 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-20 07:04:11,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:04:11,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 07:04:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:11,408 INFO L225 Difference]: With dead ends: 27 [2019-11-20 07:04:11,408 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 07:04:11,409 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 07:04:11,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 07:04:11,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 07:04:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-20 07:04:11,412 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-20 07:04:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:11,412 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-20 07:04:11,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:04:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-20 07:04:11,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 07:04:11,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:11,414 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:11,614 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:11,615 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:11,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1320216799, now seen corresponding path program 1 times [2019-11-20 07:04:11,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:11,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1454779718] [2019-11-20 07:04:11,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:11,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:04:11,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:11,965 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:12,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1454779718] [2019-11-20 07:04:12,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:04:12,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-20 07:04:12,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128663253] [2019-11-20 07:04:12,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 07:04:12,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:12,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:04:12,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:04:12,069 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2019-11-20 07:04:12,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:12,186 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-20 07:04:12,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:04:12,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 07:04:12,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:12,187 INFO L225 Difference]: With dead ends: 26 [2019-11-20 07:04:12,187 INFO L226 Difference]: Without dead ends: 26 [2019-11-20 07:04:12,187 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:04:12,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-20 07:04:12,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-20 07:04:12,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 07:04:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-20 07:04:12,191 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2019-11-20 07:04:12,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:12,191 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-20 07:04:12,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 07:04:12,191 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-20 07:04:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 07:04:12,192 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:12,192 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:12,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:12,394 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:12,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:12,395 INFO L82 PathProgramCache]: Analyzing trace with hash -2022951811, now seen corresponding path program 1 times [2019-11-20 07:04:12,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:12,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1213074212] [2019-11-20 07:04:12,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:12,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 07:04:12,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:12,641 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 07:04:12,642 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:04:12,644 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:04:12,644 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:04:12,645 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 07:04:12,731 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:04:12,731 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 07:04:12,733 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:04:12,754 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 07:04:12,754 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:04:12,755 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-20 07:04:12,805 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-20 07:04:12,806 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:04:12,818 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-20 07:04:12,818 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 07:04:12,819 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-20 07:04:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:04:12,847 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:04:13,112 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1213074212] [2019-11-20 07:04:13,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:04:13,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-20 07:04:13,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907645781] [2019-11-20 07:04:13,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 07:04:13,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:13,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 07:04:13,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-20 07:04:13,114 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2019-11-20 07:04:15,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:15,288 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-20 07:04:15,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 07:04:15,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-20 07:04:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:15,290 INFO L225 Difference]: With dead ends: 46 [2019-11-20 07:04:15,290 INFO L226 Difference]: Without dead ends: 46 [2019-11-20 07:04:15,291 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-20 07:04:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-20 07:04:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2019-11-20 07:04:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 07:04:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-20 07:04:15,296 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-20 07:04:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:15,297 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-20 07:04:15,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 07:04:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-20 07:04:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 07:04:15,299 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:15,299 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:15,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:15,502 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:15,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:15,503 INFO L82 PathProgramCache]: Analyzing trace with hash 2075501980, now seen corresponding path program 1 times [2019-11-20 07:04:15,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:15,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1616341480] [2019-11-20 07:04:15,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:15,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 07:04:15,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:15,760 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 07:04:15,761 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:04:15,766 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:04:15,766 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:04:15,766 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-20 07:04:15,899 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 07:04:15,900 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:04:15,922 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-20 07:04:15,922 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 07:04:15,922 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-20 07:04:15,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:04:15,947 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:04:16,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1616341480] [2019-11-20 07:04:16,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:04:16,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-20 07:04:16,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965332976] [2019-11-20 07:04:16,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 07:04:16,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:16,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 07:04:16,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-20 07:04:16,167 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 15 states. [2019-11-20 07:04:16,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:16,785 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-11-20 07:04:16,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 07:04:16,785 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-20 07:04:16,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:16,786 INFO L225 Difference]: With dead ends: 49 [2019-11-20 07:04:16,787 INFO L226 Difference]: Without dead ends: 49 [2019-11-20 07:04:16,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-20 07:04:16,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-20 07:04:16,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2019-11-20 07:04:16,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 07:04:16,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-20 07:04:16,793 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-20 07:04:16,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:16,794 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-20 07:04:16,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 07:04:16,794 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-20 07:04:16,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 07:04:16,795 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:16,795 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:16,998 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:16,999 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, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:16,999 INFO L82 PathProgramCache]: Analyzing trace with hash -669642114, now seen corresponding path program 2 times [2019-11-20 07:04:16,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:16,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [377762117] [2019-11-20 07:04:16,999 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:17,179 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 07:04:17,180 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 07:04:17,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:04:17,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:17,194 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:04:17,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [377762117] [2019-11-20 07:04:17,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:04:17,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-20 07:04:17,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255275736] [2019-11-20 07:04:17,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:04:17,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:04:17,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:04:17,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:04:17,211 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states. [2019-11-20 07:04:17,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:04:17,234 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-11-20 07:04:17,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:04:17,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 07:04:17,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:04:17,236 INFO L225 Difference]: With dead ends: 39 [2019-11-20 07:04:17,236 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 07:04:17,236 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 07:04:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 07:04:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2019-11-20 07:04:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 07:04:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-20 07:04:17,240 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 25 [2019-11-20 07:04:17,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:04:17,241 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-20 07:04:17,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:04:17,241 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-20 07:04:17,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 07:04:17,242 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:04:17,242 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:04:17,445 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:17,445 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, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 07:04:17,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:04:17,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1224078522, now seen corresponding path program 1 times [2019-11-20 07:04:17,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:04:17,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [6493012] [2019-11-20 07:04:17,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f01f9b9b-3191-43d1-be9c-59098937da59/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 07:04:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:04:17,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-20 07:04:17,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:04:17,692 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 07:04:17,692 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-20 07:04:17,693 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 07:04:17,708 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 07:04:17,708 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:04:17,711 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 07:04:17,711 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 07:04:17,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:04:17,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:04:17,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:04:17,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:04:20,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:04:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 07:04:20,419 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:04:20,601 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-20 07:04:24,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 07:04:24,971 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 07:04:24,975 INFO L168 Benchmark]: Toolchain (without parser) took 21034.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.6 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -64.1 MB). Peak memory consumption was 251.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:04:24,975 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:04:24,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:04:24,976 INFO L168 Benchmark]: Boogie Preprocessor took 136.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:04:24,976 INFO L168 Benchmark]: RCFGBuilder took 1831.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.7 MB in the end (delta: 110.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. [2019-11-20 07:04:24,977 INFO L168 Benchmark]: TraceAbstraction took 18303.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 976.7 MB in the beginning and 1.0 GB in the end (delta: -30.7 MB). Peak memory consumption was 152.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:04:24,979 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 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 759.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 136.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1831.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.7 MB in the end (delta: 110.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18303.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 976.7 MB in the beginning and 1.0 GB in the end (delta: -30.7 MB). Peak memory consumption was 152.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...