./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 ba3b14ef0de39694a8a8eb7210506a4804ce5885 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 10:12:53,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:12:53,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:12:53,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:12:53,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:12:53,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:12:53,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:12:53,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:12:53,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:12:53,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:12:53,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:12:53,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:12:53,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:12:53,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:12:53,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:12:53,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:12:53,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:12:53,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:12:53,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:12:53,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:12:53,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:12:53,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:12:53,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:12:53,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:12:53,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:12:53,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:12:53,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:12:53,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:12:53,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:12:53,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:12:53,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:12:53,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:12:53,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:12:53,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:12:53,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:12:53,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:12:53,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:12:53,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:12:53,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:12:53,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:12:53,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:12:53,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 10:12:53,728 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:12:53,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:12:53,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:12:53,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:12:53,729 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:12:53,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:12:53,730 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:12:53,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:12:53,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:12:53,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:12:53,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:12:53,731 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 10:12:53,731 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 10:12:53,731 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 10:12:53,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:12:53,732 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:12:53,732 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:12:53,732 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:12:53,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:12:53,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:12:53,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:12:53,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:12:53,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:12:53,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:12:53,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:12:53,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:12:53,734 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:12:53,734 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:12:53,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:12:53,735 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_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 -> ba3b14ef0de39694a8a8eb7210506a4804ce5885 [2019-11-20 10:12:53,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:12:53,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:12:53,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:12:53,976 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:12:53,977 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:12:53,978 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-11-20 10:12:54,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/data/7c44497f2/0bf64d53d390440b94e272ca31785ff0/FLAGff474b815 [2019-11-20 10:12:54,725 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:12:54,725 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-11-20 10:12:54,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/data/7c44497f2/0bf64d53d390440b94e272ca31785ff0/FLAGff474b815 [2019-11-20 10:12:55,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/bin/uautomizer/data/7c44497f2/0bf64d53d390440b94e272ca31785ff0 [2019-11-20 10:12:55,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:12:55,025 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 10:12:55,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:12:55,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:12:55,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:12:55,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b159cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55, skipping insertion in model container [2019-11-20 10:12:55,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:12:55,093 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:12:55,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:12:55,616 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:12:55,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:12:55,846 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:12:55,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55 WrapperNode [2019-11-20 10:12:55,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:12:55,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:12:55,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:12:55,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:12:55,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... [2019-11-20 10:12:55,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:12:55,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:12:55,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:12:55,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:12:55,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:12:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 10:12:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:12:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 10:12:56,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 10:12:56,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 10:12:56,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 10:12:56,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 10:12:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 10:12:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 10:12:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 10:12:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 10:12:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 10:12:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 10:12:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 10:12:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 10:12:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 10:12:56,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 10:12:56,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 10:12:56,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 10:12:56,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 10:12:56,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 10:12:56,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 10:12:56,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 10:12:56,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 10:12:56,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 10:12:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 10:12:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 10:12:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 10:12:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 10:12:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 10:12:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 10:12:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 10:12:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 10:12:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 10:12:56,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 10:12:56,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 10:12:56,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 10:12:56,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 10:12:56,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 10:12:56,065 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 10:12:56,065 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 10:12:56,065 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 10:12:56,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 10:12:56,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 10:12:56,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 10:12:56,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 10:12:56,066 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 10:12:56,066 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 10:12:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 10:12:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 10:12:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 10:12:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 10:12:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 10:12:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 10:12:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 10:12:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 10:12:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 10:12:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 10:12:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 10:12:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 10:12:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 10:12:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 10:12:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 10:12:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 10:12:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 10:12:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 10:12:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 10:12:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 10:12:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 10:12:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 10:12:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 10:12:56,071 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 10:12:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 10:12:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 10:12:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 10:12:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 10:12:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 10:12:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 10:12:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 10:12:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 10:12:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 10:12:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 10:12:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 10:12:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 10:12:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 10:12:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 10:12:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 10:12:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 10:12:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 10:12:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 10:12:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 10:12:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 10:12:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 10:12:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 10:12:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 10:12:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 10:12:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 10:12:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 10:12:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 10:12:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 10:12:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 10:12:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 10:12:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 10:12:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 10:12:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 10:12:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 10:12:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 10:12:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 10:12:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 10:12:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 10:12:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 10:12:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 10:12:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 10:12:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 10:12:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 10:12:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 10:12:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 10:12:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 10:12:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 10:12:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 10:12:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 10:12:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 10:12:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 10:12:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 10:12:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 10:12:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 10:12:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 10:12:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 10:12:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 10:12:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 10:12:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 10:12:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 10:12:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 10:12:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 10:12:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 10:12:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 10:12:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 10:12:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 10:12:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 10:12:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 10:12:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 10:12:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 10:12:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 10:12:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 10:12:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 10:12:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 10:12:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 10:12:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 10:12:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 10:12:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 10:12:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 10:12:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 10:12:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 10:12:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 10:12:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 10:12:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 10:12:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 10:12:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 10:12:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 10:12:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 10:12:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 10:12:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 10:12:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 10:12:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 10:12:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 10:12:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 10:12:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 10:12:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 10:12:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 10:12:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 10:12:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 10:12:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 10:12:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 10:12:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 10:12:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 10:12:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 10:12:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:12:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 10:12:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 10:12:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 10:12:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 10:12:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 10:12:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 10:12:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 10:12:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 10:12:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 10:12:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 10:12:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 10:12:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 10:12:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 10:12:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 10:12:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 10:12:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 10:12:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 10:12:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 10:12:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 10:12:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 10:12:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 10:12:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 10:12:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 10:12:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 10:12:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 10:12:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 10:12:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 10:12:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:12:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 10:12:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:12:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 10:12:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 10:12:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 10:12:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 10:12:56,909 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 10:12:57,441 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 10:12:57,989 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:12:57,992 INFO L285 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-20 10:12:57,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:57 BoogieIcfgContainer [2019-11-20 10:12:57,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:12:57,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:12:57,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:12:57,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:12:58,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:12:55" (1/3) ... [2019-11-20 10:12:58,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d8ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:12:58, skipping insertion in model container [2019-11-20 10:12:58,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:55" (2/3) ... [2019-11-20 10:12:58,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d8ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:12:58, skipping insertion in model container [2019-11-20 10:12:58,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:57" (3/3) ... [2019-11-20 10:12:58,005 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2019-11-20 10:12:58,015 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:12:58,029 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2019-11-20 10:12:58,041 INFO L249 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2019-11-20 10:12:58,071 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:12:58,071 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 10:12:58,071 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:12:58,071 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:12:58,072 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:12:58,072 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:12:58,072 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:12:58,072 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:12:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-11-20 10:12:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 10:12:58,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:12:58,126 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:12:58,127 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:12:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:12:58,134 INFO L82 PathProgramCache]: Analyzing trace with hash 2104391860, now seen corresponding path program 1 times [2019-11-20 10:12:58,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:12:58,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [517219718] [2019-11-20 10:12:58,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:12:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:12:58,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 10:12:58,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:12:58,607 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 10:12:58,610 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:12:58,739 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 10:12:58,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [517219718] [2019-11-20 10:12:58,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:12:58,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 10:12:58,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720836167] [2019-11-20 10:12:58,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 10:12:58,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:12:58,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:12:58,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:12:58,778 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 5 states. [2019-11-20 10:12:58,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:12:58,975 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2019-11-20 10:12:58,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:12:58,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 10:12:58,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:12:58,989 INFO L225 Difference]: With dead ends: 67 [2019-11-20 10:12:58,989 INFO L226 Difference]: Without dead ends: 64 [2019-11-20 10:12:58,991 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:12:59,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-20 10:12:59,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2019-11-20 10:12:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 10:12:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2019-11-20 10:12:59,044 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2019-11-20 10:12:59,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:12:59,045 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2019-11-20 10:12:59,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 10:12:59,046 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2019-11-20 10:12:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 10:12:59,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:12:59,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:12:59,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:12:59,257 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:12:59,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:12:59,258 INFO L82 PathProgramCache]: Analyzing trace with hash -447765101, now seen corresponding path program 1 times [2019-11-20 10:12:59,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:12:59,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1061275726] [2019-11-20 10:12:59,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:12:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:12:59,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 10:12:59,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:12:59,622 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 10:12:59,622 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:12:59,694 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 10:12:59,694 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1061275726] [2019-11-20 10:12:59,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:12:59,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 10:12:59,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857958440] [2019-11-20 10:12:59,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:12:59,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:12:59,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:12:59,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:12:59,698 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 3 states. [2019-11-20 10:12:59,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:12:59,825 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2019-11-20 10:12:59,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:12:59,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 10:12:59,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:12:59,827 INFO L225 Difference]: With dead ends: 64 [2019-11-20 10:12:59,828 INFO L226 Difference]: Without dead ends: 61 [2019-11-20 10:12:59,828 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:12:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-20 10:12:59,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2019-11-20 10:12:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-20 10:12:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2019-11-20 10:12:59,838 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2019-11-20 10:12:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:12:59,839 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-11-20 10:12:59,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:12:59,839 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2019-11-20 10:12:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 10:12:59,840 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:12:59,840 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:13:00,044 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:13:00,045 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:13:00,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:13:00,046 INFO L82 PathProgramCache]: Analyzing trace with hash 811280697, now seen corresponding path program 1 times [2019-11-20 10:13:00,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:13:00,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1465790050] [2019-11-20 10:13:00,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:13:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:13:00,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:13:00,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:13:00,348 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 10:13:00,349 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:13:00,387 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 10:13:00,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1465790050] [2019-11-20 10:13:00,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:13:00,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 10:13:00,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059487198] [2019-11-20 10:13:00,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 10:13:00,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:13:00,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:13:00,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:13:00,389 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 6 states. [2019-11-20 10:13:00,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:13:00,506 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2019-11-20 10:13:00,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:13:00,508 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-20 10:13:00,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:13:00,510 INFO L225 Difference]: With dead ends: 98 [2019-11-20 10:13:00,511 INFO L226 Difference]: Without dead ends: 98 [2019-11-20 10:13:00,511 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:13:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-20 10:13:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2019-11-20 10:13:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-11-20 10:13:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2019-11-20 10:13:00,523 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2019-11-20 10:13:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:13:00,523 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2019-11-20 10:13:00,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 10:13:00,524 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2019-11-20 10:13:00,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 10:13:00,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:13:00,525 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 10:13:00,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:13:00,734 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:13:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:13:00,734 INFO L82 PathProgramCache]: Analyzing trace with hash 534601915, now seen corresponding path program 1 times [2019-11-20 10:13:00,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:13:00,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [810154309] [2019-11-20 10:13:00,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:13:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:13:01,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 10:13:01,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:13:01,127 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 10:13:01,128 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:01,131 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:01,132 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:13:01,132 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 10:13:01,340 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:01,341 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-20 10:13:01,342 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:01,374 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 10:13:01,375 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 10:13:01,376 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-20 10:13:01,422 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 10:13:01,424 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:13:03,876 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 10:13:03,877 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [810154309] [2019-11-20 10:13:03,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 10:13:03,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-20 10:13:03,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610289438] [2019-11-20 10:13:03,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 10:13:03,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:13:03,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 10:13:03,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-20 10:13:03,878 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 13 states. [2019-11-20 10:13:17,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:13:17,261 INFO L93 Difference]: Finished difference Result 147 states and 181 transitions. [2019-11-20 10:13:17,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 10:13:17,262 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-11-20 10:13:17,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:13:17,265 INFO L225 Difference]: With dead ends: 147 [2019-11-20 10:13:17,265 INFO L226 Difference]: Without dead ends: 147 [2019-11-20 10:13:17,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=66, Invalid=239, Unknown=1, NotChecked=0, Total=306 [2019-11-20 10:13:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-20 10:13:17,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 73. [2019-11-20 10:13:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-20 10:13:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 100 transitions. [2019-11-20 10:13:17,285 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 100 transitions. Word has length 23 [2019-11-20 10:13:17,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:13:17,286 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 100 transitions. [2019-11-20 10:13:17,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 10:13:17,286 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 100 transitions. [2019-11-20 10:13:17,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 10:13:17,287 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:13:17,287 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 10:13:17,488 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:13:17,496 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:13:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:13:17,497 INFO L82 PathProgramCache]: Analyzing trace with hash 534601916, now seen corresponding path program 1 times [2019-11-20 10:13:17,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:13:17,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1116383340] [2019-11-20 10:13:17,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:13:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:13:17,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-20 10:13:17,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:13:17,802 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 10:13:17,803 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:17,820 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:17,830 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 10:13:17,831 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:17,851 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:17,852 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:13:17,852 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 10:13:20,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 10:13:20,132 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 10:13:20,132 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:20,154 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:20,167 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:20,167 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-20 10:13:20,168 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:20,183 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:20,184 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:13:20,184 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-20 10:13:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:13:20,215 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:13:20,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 10:13:22,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:13:22,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 10:13:22,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:13:22,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:13:22,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:13:22,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 10:13:22,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 10:13:32,132 WARN L191 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 10:13:32,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:13:39,414 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_184|], 2=[|v_#length_144|]} [2019-11-20 10:13:39,430 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 10:13:39,430 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:39,449 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:39,451 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 10:13:39,452 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:39,465 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:39,466 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:13:39,466 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-20 10:13:40,203 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 10:13:40,216 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 10:13:40,216 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:40,249 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:40,253 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 10:13:40,254 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:13:40,283 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:13:40,283 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 10:13:40,284 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-20 10:13:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:13:40,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1116383340] [2019-11-20 10:13:40,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 10:13:40,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-20 10:13:40,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989447823] [2019-11-20 10:13:40,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 10:13:40,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:13:40,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 10:13:40,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=259, Unknown=5, NotChecked=0, Total=306 [2019-11-20 10:13:40,471 INFO L87 Difference]: Start difference. First operand 73 states and 100 transitions. Second operand 18 states. [2019-11-20 10:14:05,241 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2)) (.cse1 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse0 .cse1)) (exists ((v_prenex_2 (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_2) (_ bv0 1)) (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_2 v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))))))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1))) (forall ((|v_ldv_malloc_#t~malloc12.base_24| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse5 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse3 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse5)) (.cse4 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse5 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse3)) (not (bvsle .cse3 .cse4)) (exists ((v_prenex_2 (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_2) (_ bv0 1)) (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_2 v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_24|) (_ bv0 1))) (bvsle .cse4 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_24| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4))))))) is different from false [2019-11-20 10:14:37,876 WARN L191 SmtUtils]: Spent 18.38 s on a formula simplification. DAG size of input: 54 DAG size of output: 25 [2019-11-20 10:14:42,050 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv40 32) (select |c_#length| |c_entry_point_#t~ret38.base|)) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2)) (.cse1 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse0 .cse1)) (exists ((v_prenex_2 (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_2) (_ bv0 1)) (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_2 v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))))))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1))) (= (bvadd (select |c_#valid| |c_entry_point_#t~ret38.base|) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) |c_entry_point_#t~ret38.offset|)) is different from false [2019-11-20 10:15:04,162 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2)) (.cse1 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse0 .cse1)) (exists ((v_prenex_2 (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (= (select |c_old(#valid)| v_prenex_2) (_ bv0 1)) (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_2 v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))))))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)))) is different from false [2019-11-20 10:15:08,793 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 10:15:25,368 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2019-11-20 10:15:39,842 WARN L191 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 50 DAG size of output: 21 [2019-11-20 10:16:11,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:16:11,469 INFO L93 Difference]: Finished difference Result 153 states and 191 transitions. [2019-11-20 10:16:11,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-20 10:16:11,471 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2019-11-20 10:16:11,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:16:11,473 INFO L225 Difference]: With dead ends: 153 [2019-11-20 10:16:11,473 INFO L226 Difference]: Without dead ends: 153 [2019-11-20 10:16:11,474 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 83.6s TimeCoverageRelationStatistics Valid=97, Invalid=493, Unknown=22, NotChecked=144, Total=756 [2019-11-20 10:16:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-20 10:16:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 79. [2019-11-20 10:16:11,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-20 10:16:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2019-11-20 10:16:11,487 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 23 [2019-11-20 10:16:11,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:16:11,488 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2019-11-20 10:16:11,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 10:16:11,488 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2019-11-20 10:16:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 10:16:11,489 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:16:11,490 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:16:11,700 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:16:11,701 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:16:11,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:16:11,701 INFO L82 PathProgramCache]: Analyzing trace with hash 29043290, now seen corresponding path program 1 times [2019-11-20 10:16:11,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:16:11,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1022101661] [2019-11-20 10:16:11,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:16:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:16:11,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 10:16:11,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:16:11,978 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 10:16:11,978 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:16:12,027 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 10:16:12,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1022101661] [2019-11-20 10:16:12,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 10:16:12,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-20 10:16:12,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11095116] [2019-11-20 10:16:12,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 10:16:12,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:16:12,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:16:12,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:16:12,029 INFO L87 Difference]: Start difference. First operand 79 states and 108 transitions. Second operand 5 states. [2019-11-20 10:16:12,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:16:12,106 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2019-11-20 10:16:12,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:16:12,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-20 10:16:12,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:16:12,109 INFO L225 Difference]: With dead ends: 54 [2019-11-20 10:16:12,109 INFO L226 Difference]: Without dead ends: 52 [2019-11-20 10:16:12,109 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 10:16:12,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-20 10:16:12,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-20 10:16:12,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-20 10:16:12,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2019-11-20 10:16:12,116 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 23 [2019-11-20 10:16:12,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:16:12,117 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2019-11-20 10:16:12,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 10:16:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2019-11-20 10:16:12,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 10:16:12,119 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:16:12,119 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 10:16:12,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:16:12,326 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:16:12,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:16:12,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1643676217, now seen corresponding path program 1 times [2019-11-20 10:16:12,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:16:12,327 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1771813239] [2019-11-20 10:16:12,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:16:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:16:12,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 10:16:12,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:16:12,620 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 10:16:12,620 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:16:12,654 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 10:16:12,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1771813239] [2019-11-20 10:16:12,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:16:12,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 10:16:12,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019082391] [2019-11-20 10:16:12,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 10:16:12,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:16:12,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:16:12,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:16:12,656 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 5 states. [2019-11-20 10:16:12,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:16:12,748 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2019-11-20 10:16:12,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:16:12,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 10:16:12,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:16:12,750 INFO L225 Difference]: With dead ends: 88 [2019-11-20 10:16:12,750 INFO L226 Difference]: Without dead ends: 88 [2019-11-20 10:16:12,751 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:16:12,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-20 10:16:12,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 58. [2019-11-20 10:16:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-20 10:16:12,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2019-11-20 10:16:12,760 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 25 [2019-11-20 10:16:12,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:16:12,760 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2019-11-20 10:16:12,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 10:16:12,761 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2019-11-20 10:16:12,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 10:16:12,762 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:16:12,762 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 10:16:12,966 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:16:12,967 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:16:12,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:16:12,968 INFO L82 PathProgramCache]: Analyzing trace with hash 99134118, now seen corresponding path program 1 times [2019-11-20 10:16:12,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:16:12,969 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1682239820] [2019-11-20 10:16:12,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:16:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:16:13,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:16:13,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:16:13,278 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 10:16:13,278 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:16:13,317 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 10:16:13,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1682239820] [2019-11-20 10:16:13,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:16:13,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 10:16:13,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283718356] [2019-11-20 10:16:13,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 10:16:13,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:16:13,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:16:13,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:16:13,320 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand 6 states. [2019-11-20 10:16:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:16:13,416 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2019-11-20 10:16:13,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:16:13,418 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-20 10:16:13,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:16:13,419 INFO L225 Difference]: With dead ends: 62 [2019-11-20 10:16:13,419 INFO L226 Difference]: Without dead ends: 62 [2019-11-20 10:16:13,420 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:16:13,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-20 10:16:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2019-11-20 10:16:13,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-20 10:16:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2019-11-20 10:16:13,426 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 25 [2019-11-20 10:16:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:16:13,426 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2019-11-20 10:16:13,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 10:16:13,426 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2019-11-20 10:16:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 10:16:13,427 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:16:13,427 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:16:13,631 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:16:13,632 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 10:16:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:16:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash 778572363, now seen corresponding path program 1 times [2019-11-20 10:16:13,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:16:13,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1485791689] [2019-11-20 10:16:13,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_148d2afa-c73d-4fb0-b62c-64f301d0dddc/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 10:16:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:16:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:16:14,009 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 10:16:14,010 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:16:14,214 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:16:14,235 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-20 10:16:14,247 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 10:16:14,247 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 10:16:14,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:16:14 BoogieIcfgContainer [2019-11-20 10:16:14,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:16:14,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:16:14,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:16:14,260 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:16:14,261 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:57" (3/4) ... [2019-11-20 10:16:14,267 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:16:14,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:16:14,271 INFO L168 Benchmark]: Toolchain (without parser) took 199244.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 939.2 MB in the beginning and 999.4 MB in the end (delta: -60.1 MB). Peak memory consumption was 87.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:16:14,271 INFO L168 Benchmark]: CDTParser took 0.80 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 10:16:14,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:16:14,281 INFO L168 Benchmark]: Boogie Preprocessor took 134.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:16:14,281 INFO L168 Benchmark]: RCFGBuilder took 2010.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.7 MB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:16:14,284 INFO L168 Benchmark]: TraceAbstraction took 196263.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Free memory was 981.7 MB in the beginning and 999.4 MB in the end (delta: -17.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:16:14,285 INFO L168 Benchmark]: Witness Printer took 7.74 ms. Allocated memory is still 1.2 GB. Free memory is still 999.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:16:14,288 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 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 821.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 134.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2010.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.7 MB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 196263.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.6 MB). Free memory was 981.7 MB in the beginning and 999.4 MB in the end (delta: -17.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 7.74 ms. Allocated memory is still 1.2 GB. Free memory is still 999.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 779]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 779. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={1108378657:0}] [L780] CALL entry_point() VAL [ldv_global_msg_list={1108378657:0}] [L762] int len = 10; VAL [ldv_global_msg_list={1108378657:0}, len=10] [L763] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={1108378657:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=40, \result={-1039104991:0}, ldv_global_msg_list={1108378657:0}, malloc(size)={-1039104991:0}, size=40] [L763] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={1108378657:0}, ldv_malloc(sizeof(struct A18*)*len)={-1039104991:0}, len=10] [L763] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L764] struct A18 *p; [L765] int i=0; [L766] int j; VAL [array={-1039104991:0}, i=0, ldv_global_msg_list={1108378657:0}, len=10] [L767] COND FALSE !(!array) VAL [array={-1039104991:0}, i=0, ldv_global_msg_list={1108378657:0}, len=10] [L768] COND TRUE i=0) VAL [array={-1039104991:0}, i=0, j=4294967295, ldv_global_msg_list={1108378657:0}, len=10, p={0:0}] [L780] RET entry_point() VAL [ldv_global_msg_list={1108378657:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 345 locations, 78 error locations. Result: UNSAFE, OverallTime: 196.1s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 165.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 397 SDtfs, 603 SDslu, 1376 SDs, 0 SdLazy, 978 SolverSat, 113 SolverUnsat, 54 SolverUnknown, 0 SolverNotchecked, 102.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 284 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 86.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 247 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 26.0s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 28 QuantifiedInterpolants, 38682 SizeOfPredicates, 20 NumberOfNonLiveVariables, 715 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...