./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 04:31:52,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:31:52,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:31:52,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:31:52,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:31:52,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:31:52,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:31:53,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:31:53,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:31:53,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:31:53,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:31:53,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:31:53,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:31:53,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:31:53,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:31:53,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:31:53,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:31:53,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:31:53,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:31:53,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:31:53,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:31:53,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:31:53,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:31:53,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:31:53,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:31:53,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:31:53,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:31:53,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:31:53,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:31:53,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:31:53,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:31:53,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:31:53,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:31:53,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:31:53,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:31:53,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:31:53,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:31:53,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:31:53,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:31:53,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:31:53,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:31:53,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 04:31:53,079 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:31:53,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:31:53,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:31:53,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:31:53,081 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:31:53,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:31:53,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:31:53,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:31:53,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:31:53,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:31:53,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:31:53,082 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 04:31:53,083 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 04:31:53,083 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 04:31:53,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:31:53,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:31:53,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:31:53,083 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:31:53,084 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:31:53,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:31:53,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:31:53,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:31:53,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:31:53,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:31:53,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:31:53,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:31:53,085 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:31:53,085 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:31:53,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:31:53,086 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_cbb3fb78-376f-4c54-93ee-080dfa278915/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 -> c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 [2019-11-20 04:31:53,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:31:53,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:31:53,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:31:53,254 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:31:53,254 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:31:53,255 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-20 04:31:53,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/data/e56570b99/957f390216d24b7eb510f65596b15222/FLAG2b87ea963 [2019-11-20 04:31:53,774 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:31:53,775 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-20 04:31:53,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/data/e56570b99/957f390216d24b7eb510f65596b15222/FLAG2b87ea963 [2019-11-20 04:31:53,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/bin/uautomizer/data/e56570b99/957f390216d24b7eb510f65596b15222 [2019-11-20 04:31:53,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:31:53,809 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 04:31:53,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:31:53,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:31:53,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:31:53,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:31:53" (1/1) ... [2019-11-20 04:31:53,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb910e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:53, skipping insertion in model container [2019-11-20 04:31:53,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:31:53" (1/1) ... [2019-11-20 04:31:53,825 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:31:53,862 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:31:54,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:31:54,326 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:31:54,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:31:54,459 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:31:54,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54 WrapperNode [2019-11-20 04:31:54,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:31:54,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:31:54,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:31:54,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:31:54,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... [2019-11-20 04:31:54,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... [2019-11-20 04:31:54,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... [2019-11-20 04:31:54,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... [2019-11-20 04:31:54,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... [2019-11-20 04:31:54,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... [2019-11-20 04:31:54,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... [2019-11-20 04:31:54,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:31:54,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:31:54,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:31:54,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:31:54,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:31:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 04:31:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:31:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 04:31:54,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 04:31:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 04:31:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 04:31:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 04:31:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 04:31:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 04:31:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 04:31:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 04:31:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 04:31:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 04:31:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 04:31:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 04:31:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 04:31:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 04:31:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 04:31:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 04:31:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 04:31:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 04:31:54,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 04:31:54,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 04:31:54,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 04:31:54,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 04:31:54,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 04:31:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 04:31:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 04:31:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 04:31:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 04:31:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 04:31:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 04:31:54,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 04:31:54,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 04:31:54,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 04:31:54,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 04:31:54,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 04:31:54,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 04:31:54,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 04:31:54,631 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 04:31:54,631 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 04:31:54,631 INFO L138 BoogieDeclarations]: Found implementation of procedure h_safe [2019-11-20 04:31:54,631 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 04:31:54,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 04:31:54,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 04:31:54,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 04:31:54,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 04:31:54,632 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 04:31:54,632 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 04:31:54,633 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 04:31:54,633 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 04:31:54,633 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 04:31:54,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 04:31:54,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 04:31:54,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 04:31:54,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 04:31:54,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 04:31:54,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 04:31:54,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 04:31:54,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 04:31:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 04:31:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 04:31:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 04:31:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 04:31:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 04:31:54,636 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 04:31:54,636 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 04:31:54,637 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 04:31:54,637 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 04:31:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 04:31:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 04:31:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 04:31:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 04:31:54,639 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 04:31:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 04:31:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 04:31:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 04:31:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 04:31:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 04:31:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 04:31:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 04:31:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 04:31:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 04:31:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 04:31:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 04:31:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 04:31:54,641 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 04:31:54,642 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 04:31:54,643 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 04:31:54,644 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 04:31:54,644 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 04:31:54,644 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 04:31:54,644 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 04:31:54,644 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 04:31:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 04:31:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 04:31:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 04:31:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 04:31:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 04:31:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 04:31:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 04:31:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 04:31:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 04:31:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 04:31:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 04:31:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 04:31:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 04:31:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 04:31:54,650 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 04:31:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 04:31:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 04:31:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 04:31:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 04:31:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 04:31:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 04:31:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 04:31:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 04:31:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 04:31:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 04:31:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 04:31:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 04:31:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 04:31:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 04:31:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 04:31:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 04:31:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 04:31:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:31:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 04:31:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 04:31:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 04:31:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 04:31:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 04:31:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:31:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:31:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 04:31:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 04:31:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 04:31:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 04:31:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 04:31:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 04:31:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 04:31:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 04:31:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 04:31:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 04:31:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 04:31:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 04:31:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 04:31:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 04:31:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 04:31:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 04:31:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 04:31:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure h_safe [2019-11-20 04:31:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 04:31:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 04:31:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 04:31:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:31:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 04:31:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:31:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 04:31:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 04:31:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 04:31:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 04:31:55,212 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 04:31:55,606 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 04:31:55,997 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:31:55,999 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 04:31:56,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:31:56 BoogieIcfgContainer [2019-11-20 04:31:56,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:31:56,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:31:56,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:31:56,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:31:56,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:31:53" (1/3) ... [2019-11-20 04:31:56,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126bb784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:31:56, skipping insertion in model container [2019-11-20 04:31:56,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:31:54" (2/3) ... [2019-11-20 04:31:56,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126bb784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:31:56, skipping insertion in model container [2019-11-20 04:31:56,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:31:56" (3/3) ... [2019-11-20 04:31:56,007 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2019-11-20 04:31:56,016 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:31:56,021 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-20 04:31:56,030 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-20 04:31:56,047 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:31:56,047 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 04:31:56,047 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:31:56,047 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:31:56,048 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:31:56,048 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:31:56,048 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:31:56,048 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:31:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2019-11-20 04:31:56,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 04:31:56,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:31:56,068 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 04:31:56,069 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:31:56,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:31:56,074 INFO L82 PathProgramCache]: Analyzing trace with hash 362301239, now seen corresponding path program 1 times [2019-11-20 04:31:56,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:31:56,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [267403172] [2019-11-20 04:31:56,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:31:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:31:56,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:31:56,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:31:56,447 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 04:31:56,447 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:31:56,582 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 04:31:56,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [267403172] [2019-11-20 04:31:56,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:31:56,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 04:31:56,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594464841] [2019-11-20 04:31:56,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:31:56,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:31:56,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:31:56,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:31:56,608 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2019-11-20 04:31:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:31:56,666 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-20 04:31:56,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:31:56,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-20 04:31:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:31:56,676 INFO L225 Difference]: With dead ends: 29 [2019-11-20 04:31:56,676 INFO L226 Difference]: Without dead ends: 26 [2019-11-20 04:31:56,680 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:31:56,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-20 04:31:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-20 04:31:56,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 04:31:56,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-20 04:31:56,710 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2019-11-20 04:31:56,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:31:56,710 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-20 04:31:56,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:31:56,710 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-20 04:31:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 04:31:56,711 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:31:56,711 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:31:56,914 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:31:56,914 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:31:56,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:31:56,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1653563109, now seen corresponding path program 1 times [2019-11-20 04:31:56,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:31:56,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [682222810] [2019-11-20 04:31:56,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:31:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:31:57,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:31:57,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:31:57,331 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 04:31:57,332 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:31:57,573 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 04:31:57,573 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [682222810] [2019-11-20 04:31:57,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:31:57,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2019-11-20 04:31:57,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909812483] [2019-11-20 04:31:57,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 04:31:57,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:31:57,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 04:31:57,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-20 04:31:57,576 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 13 states. [2019-11-20 04:31:57,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:31:57,809 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-11-20 04:31:57,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:31:57,811 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-11-20 04:31:57,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:31:57,811 INFO L225 Difference]: With dead ends: 25 [2019-11-20 04:31:57,812 INFO L226 Difference]: Without dead ends: 25 [2019-11-20 04:31:57,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-20 04:31:57,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-20 04:31:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-20 04:31:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 04:31:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-20 04:31:57,816 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2019-11-20 04:31:57,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:31:57,819 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-20 04:31:57,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 04:31:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-20 04:31:57,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:31:57,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:31:57,820 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:31:58,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:31:58,024 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:31:58,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:31:58,025 INFO L82 PathProgramCache]: Analyzing trace with hash 279151545, now seen corresponding path program 1 times [2019-11-20 04:31:58,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:31:58,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1483460381] [2019-11-20 04:31:58,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:31:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:31:58,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:31:58,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:31:58,310 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 04:31:58,311 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:31:58,313 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:31:58,313 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:31:58,314 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 04:31:58,357 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 04:31:58,357 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:31:58,479 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 04:31:58,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1483460381] [2019-11-20 04:31:58,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:31:58,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 04:31:58,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062358507] [2019-11-20 04:31:58,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:31:58,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:31:58,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:31:58,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:31:58,481 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2019-11-20 04:31:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:31:58,567 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2019-11-20 04:31:58,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:31:58,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-20 04:31:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:31:58,569 INFO L225 Difference]: With dead ends: 37 [2019-11-20 04:31:58,569 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 04:31:58,570 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:31:58,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 04:31:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-20 04:31:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 04:31:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-20 04:31:58,576 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 20 [2019-11-20 04:31:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:31:58,576 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-20 04:31:58,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:31:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-20 04:31:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:31:58,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:31:58,577 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:31:58,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:31:58,778 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:31:58,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:31:58,778 INFO L82 PathProgramCache]: Analyzing trace with hash 279399091, now seen corresponding path program 1 times [2019-11-20 04:31:58,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:31:58,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1901538784] [2019-11-20 04:31:58,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:31:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:31:58,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:31:58,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:31:59,028 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 04:31:59,029 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:31:59,186 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 04:31:59,186 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1901538784] [2019-11-20 04:31:59,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:31:59,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-20 04:31:59,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111830490] [2019-11-20 04:31:59,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:31:59,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:31:59,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:31:59,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:31:59,188 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 7 states. [2019-11-20 04:31:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:31:59,237 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-11-20 04:31:59,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:31:59,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-20 04:31:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:31:59,239 INFO L225 Difference]: With dead ends: 37 [2019-11-20 04:31:59,239 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 04:31:59,239 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:31:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 04:31:59,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-20 04:31:59,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 04:31:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-11-20 04:31:59,244 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 20 [2019-11-20 04:31:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:31:59,244 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-11-20 04:31:59,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:31:59,245 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-11-20 04:31:59,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:31:59,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:31:59,246 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:31:59,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:31:59,447 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:31:59,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:31:59,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1517799814, now seen corresponding path program 1 times [2019-11-20 04:31:59,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:31:59,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [490230318] [2019-11-20 04:31:59,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:31:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:31:59,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:31:59,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:31:59,657 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 04:31:59,658 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:31:59,719 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 04:31:59,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [490230318] [2019-11-20 04:31:59,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:31:59,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-20 04:31:59,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156170484] [2019-11-20 04:31:59,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:31:59,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:31:59,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:31:59,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:31:59,721 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2019-11-20 04:31:59,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:31:59,768 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-11-20 04:31:59,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:31:59,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-20 04:31:59,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:31:59,769 INFO L225 Difference]: With dead ends: 34 [2019-11-20 04:31:59,769 INFO L226 Difference]: Without dead ends: 33 [2019-11-20 04:31:59,770 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:31:59,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-20 04:31:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-11-20 04:31:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 04:31:59,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-11-20 04:31:59,775 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 20 [2019-11-20 04:31:59,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:31:59,775 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-11-20 04:31:59,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:31:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-11-20 04:31:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:31:59,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:31:59,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:31:59,976 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:31:59,977 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:31:59,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:31:59,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1517552268, now seen corresponding path program 1 times [2019-11-20 04:31:59,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:31:59,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1572719973] [2019-11-20 04:31:59,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:32:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:32:00,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:32:00,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:32:00,181 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 04:32:00,181 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:32:00,274 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 04:32:00,275 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572719973] [2019-11-20 04:32:00,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:32:00,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 04:32:00,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011330316] [2019-11-20 04:32:00,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:32:00,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:32:00,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:32:00,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:32:00,276 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 3 states. [2019-11-20 04:32:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:32:00,299 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2019-11-20 04:32:00,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:32:00,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-20 04:32:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:32:00,300 INFO L225 Difference]: With dead ends: 34 [2019-11-20 04:32:00,300 INFO L226 Difference]: Without dead ends: 24 [2019-11-20 04:32:00,300 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 04:32:00,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-20 04:32:00,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-20 04:32:00,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-20 04:32:00,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2019-11-20 04:32:00,303 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2019-11-20 04:32:00,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:32:00,304 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2019-11-20 04:32:00,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:32:00,304 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2019-11-20 04:32:00,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 04:32:00,305 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:32:00,305 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:32:00,505 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:32:00,506 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 04:32:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:32:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1147366747, now seen corresponding path program 1 times [2019-11-20 04:32:00,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:32:00,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1574713050] [2019-11-20 04:32:00,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbb3fb78-376f-4c54-93ee-080dfa278915/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 04:32:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:32:00,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-20 04:32:00,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:32:00,739 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:32:00,740 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-20 04:32:00,741 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:32:00,760 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 04:32:00,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:32:00,762 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 04:32:00,762 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 04:32:00,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:32:00,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:32:00,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:32:00,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:32:06,985 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 04:32:06,985 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:32:11,360 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:32:11,361 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 04:32:11,364 INFO L168 Benchmark]: Toolchain (without parser) took 17555.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -105.7 MB). Peak memory consumption was 73.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:32:11,364 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:32:11,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:32:11,365 INFO L168 Benchmark]: Boogie Preprocessor took 109.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:32:11,366 INFO L168 Benchmark]: RCFGBuilder took 1430.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.9 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:32:11,366 INFO L168 Benchmark]: TraceAbstraction took 15361.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 985.9 MB in the beginning and 1.1 GB in the end (delta: -65.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:32:11,369 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 650.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.70 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 1430.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.9 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15361.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 985.9 MB in the beginning and 1.1 GB in the end (delta: -65.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...