./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.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_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 47a446ab72b0e2eb3d0b617f2eb4b8d836905a9e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:53:22,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:53:22,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:53:22,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:53:22,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:53:22,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:53:22,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:53:22,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:53:22,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:53:22,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:53:22,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:53:22,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:53:22,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:53:22,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:53:22,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:53:22,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:53:22,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:53:22,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:53:22,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:53:22,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:53:22,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:53:22,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:53:22,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:53:22,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:53:22,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:53:22,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:53:22,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:53:22,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:53:22,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:53:22,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:53:22,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:53:22,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:53:22,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:53:22,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:53:22,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:53:22,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:53:22,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:53:22,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:53:22,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:53:22,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:53:22,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:53:22,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 04:53:22,854 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:53:22,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:53:22,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:53:22,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:53:22,855 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:53:22,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:53:22,856 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:53:22,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:53:22,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:53:22,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:53:22,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:53:22,857 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 04:53:22,857 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 04:53:22,857 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 04:53:22,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:53:22,858 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:53:22,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:53:22,858 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:53:22,858 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:53:22,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:53:22,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:53:22,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:53:22,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:53:22,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:53:22,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:53:22,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:53:22,860 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:53:22,860 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:53:22,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:53:22,861 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_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 -> 47a446ab72b0e2eb3d0b617f2eb4b8d836905a9e [2019-11-20 04:53:22,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:53:22,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:53:23,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:53:23,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:53:23,004 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:53:23,004 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2019-11-20 04:53:23,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/data/e63e9e8d0/6662fbd441db4b89afa99c6e156a0d6a/FLAG3d5b9c047 [2019-11-20 04:53:23,546 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:53:23,547 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2019-11-20 04:53:23,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/data/e63e9e8d0/6662fbd441db4b89afa99c6e156a0d6a/FLAG3d5b9c047 [2019-11-20 04:53:23,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/data/e63e9e8d0/6662fbd441db4b89afa99c6e156a0d6a [2019-11-20 04:53:23,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:53:23,875 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 04:53:23,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:53:23,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:53:23,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:53:23,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:53:23" (1/1) ... [2019-11-20 04:53:23,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2577befb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:23, skipping insertion in model container [2019-11-20 04:53:23,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:53:23" (1/1) ... [2019-11-20 04:53:23,888 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:53:23,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:53:24,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:53:24,354 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:53:24,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:53:24,489 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:53:24,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24 WrapperNode [2019-11-20 04:53:24,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:53:24,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:53:24,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:53:24,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:53:24,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... [2019-11-20 04:53:24,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... [2019-11-20 04:53:24,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... [2019-11-20 04:53:24,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... [2019-11-20 04:53:24,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... [2019-11-20 04:53:24,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... [2019-11-20 04:53:24,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... [2019-11-20 04:53:24,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:53:24,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:53:24,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:53:24,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:53:24,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 04:53:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:53:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 04:53:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 04:53:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 04:53:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 04:53:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 04:53:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 04:53:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 04:53:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 04:53:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 04:53:24,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 04:53:24,657 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 04:53:24,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 04:53:24,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 04:53:24,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 04:53:24,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 04:53:24,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 04:53:24,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 04:53:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 04:53:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 04:53:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 04:53:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 04:53:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 04:53:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 04:53:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 04:53:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 04:53:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 04:53:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 04:53:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 04:53:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 04:53:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 04:53:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 04:53:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 04:53:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 04:53:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 04:53:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 04:53:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 04:53:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 04:53:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 04:53:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 04:53:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2019-11-20 04:53:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2019-11-20 04:53:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2019-11-20 04:53:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2019-11-20 04:53:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 04:53:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 04:53:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 04:53:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 04:53:24,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 04:53:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 04:53:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 04:53:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 04:53:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 04:53:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 04:53:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 04:53:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 04:53:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 04:53:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 04:53:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 04:53:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 04:53:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 04:53:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 04:53:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 04:53:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 04:53:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 04:53:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 04:53:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 04:53:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 04:53:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 04:53:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 04:53:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 04:53:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 04:53:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 04:53:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 04:53:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 04:53:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 04:53:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 04:53:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 04:53:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 04:53:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 04:53:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 04:53:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 04:53:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 04:53:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 04:53:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 04:53:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 04:53:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 04:53:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 04:53:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 04:53:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 04:53:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 04:53:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 04:53:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 04:53:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 04:53:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 04:53:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 04:53:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 04:53:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 04:53:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 04:53:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 04:53:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 04:53:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 04:53:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 04:53:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 04:53:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 04:53:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 04:53:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 04:53:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 04:53:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 04:53:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 04:53:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 04:53:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 04:53:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 04:53:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 04:53:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 04:53:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 04:53:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 04:53:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 04:53:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 04:53:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 04:53:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 04:53:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 04:53:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 04:53:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 04:53:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 04:53:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 04:53:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 04:53:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 04:53:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 04:53:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 04:53:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 04:53:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 04:53:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 04:53:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 04:53:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 04:53:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 04:53:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 04:53:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 04:53:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 04:53:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 04:53:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 04:53:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 04:53:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 04:53:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 04:53:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 04:53:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 04:53:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 04:53:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 04:53:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 04:53:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 04:53:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 04:53:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 04:53:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 04:53:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 04:53:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 04:53:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 04:53:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 04:53:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 04:53:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 04:53:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 04:53:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 04:53:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 04:53:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 04:53:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 04:53:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 04:53:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 04:53:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 04:53:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 04:53:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 04:53:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 04:53:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 04:53:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 04:53:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 04:53:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 04:53:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 04:53:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 04:53:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 04:53:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 04:53:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 04:53:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:53:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 04:53:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 04:53:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 04:53:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 04:53:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 04:53:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:53:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:53:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 04:53:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 04:53:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 04:53:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 04:53:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 04:53:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 04:53:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 04:53:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 04:53:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 04:53:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 04:53:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 04:53:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 04:53:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 04:53:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 04:53:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 04:53:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 04:53:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 04:53:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:53:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 04:53:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:53:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 04:53:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 04:53:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 04:53:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 04:53:25,254 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 04:53:25,621 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 04:53:26,003 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:53:26,004 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 04:53:26,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:53:26 BoogieIcfgContainer [2019-11-20 04:53:26,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:53:26,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:53:26,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:53:26,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:53:26,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:53:23" (1/3) ... [2019-11-20 04:53:26,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0f687a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:53:26, skipping insertion in model container [2019-11-20 04:53:26,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:53:24" (2/3) ... [2019-11-20 04:53:26,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0f687a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:53:26, skipping insertion in model container [2019-11-20 04:53:26,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:53:26" (3/3) ... [2019-11-20 04:53:26,017 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2019-11-20 04:53:26,025 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:53:26,035 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2019-11-20 04:53:26,044 INFO L249 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2019-11-20 04:53:26,064 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:53:26,064 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 04:53:26,064 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:53:26,065 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:53:26,065 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:53:26,065 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:53:26,065 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:53:26,065 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:53:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-11-20 04:53:26,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:53:26,099 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:26,100 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 04:53:26,100 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:26,106 INFO L82 PathProgramCache]: Analyzing trace with hash -989097340, now seen corresponding path program 1 times [2019-11-20 04:53:26,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:26,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [379469668] [2019-11-20 04:53:26,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:26,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:53:26,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:26,509 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 04:53:26,509 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:26,621 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 04:53:26,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [379469668] [2019-11-20 04:53:26,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:26,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 04:53:26,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413105499] [2019-11-20 04:53:26,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:53:26,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:26,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:53:26,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:53:26,646 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 5 states. [2019-11-20 04:53:26,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:26,741 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-11-20 04:53:26,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:53:26,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-20 04:53:26,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:26,754 INFO L225 Difference]: With dead ends: 76 [2019-11-20 04:53:26,754 INFO L226 Difference]: Without dead ends: 73 [2019-11-20 04:53:26,756 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:53:26,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-20 04:53:26,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2019-11-20 04:53:26,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-20 04:53:26,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2019-11-20 04:53:26,824 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2019-11-20 04:53:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:26,825 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2019-11-20 04:53:26,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:53:26,825 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2019-11-20 04:53:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:53:26,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:26,827 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 04:53:27,031 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:27,032 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:27,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:27,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1185610845, now seen corresponding path program 1 times [2019-11-20 04:53:27,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:27,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1509642796] [2019-11-20 04:53:27,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:27,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:53:27,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:27,405 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-20 04:53:27,405 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-20 04:53:27,406 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:27,447 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-20 04:53:27,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:27,451 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 04:53:27,451 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-20 04:53:27,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:27,480 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-20 04:53:27,481 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:27,483 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:27,483 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:27,483 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-20 04:53:27,493 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 04:53:27,493 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:27,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:27,555 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2019-11-20 04:53:27,556 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:27,561 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:27,562 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:27,562 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2019-11-20 04:53:27,590 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 04:53:27,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1509642796] [2019-11-20 04:53:27,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:27,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-20 04:53:27,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68940342] [2019-11-20 04:53:27,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:53:27,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:27,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:53:27,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:53:27,593 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2019-11-20 04:53:27,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:27,808 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-11-20 04:53:27,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:53:27,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-20 04:53:27,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:27,810 INFO L225 Difference]: With dead ends: 92 [2019-11-20 04:53:27,810 INFO L226 Difference]: Without dead ends: 89 [2019-11-20 04:53:27,810 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:53:27,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-20 04:53:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-11-20 04:53:27,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-20 04:53:27,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2019-11-20 04:53:27,822 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2019-11-20 04:53:27,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:27,823 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2019-11-20 04:53:27,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:53:27,823 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2019-11-20 04:53:27,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 04:53:27,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:27,825 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 04:53:28,035 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:28,036 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:28,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:28,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1185610844, now seen corresponding path program 1 times [2019-11-20 04:53:28,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:28,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [594551068] [2019-11-20 04:53:28,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:28,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:53:28,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:28,345 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,345 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-20 04:53:28,345 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,372 INFO L567 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-20 04:53:28,372 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,373 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-20 04:53:28,387 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-20 04:53:28,387 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,393 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,393 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,393 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:7 [2019-11-20 04:53:28,406 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 04:53:28,407 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:28,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-20 04:53:28,570 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2019-11-20 04:53:28,570 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 04:53:28,597 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,598 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 04:53:28,598 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2019-11-20 04:53:28,673 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 04:53:28,673 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [594551068] [2019-11-20 04:53:28,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:28,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 04:53:28,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911809484] [2019-11-20 04:53:28,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:53:28,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:28,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:53:28,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:53:28,674 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 6 states. [2019-11-20 04:53:28,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:28,880 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2019-11-20 04:53:28,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:53:28,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-20 04:53:28,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:28,883 INFO L225 Difference]: With dead ends: 110 [2019-11-20 04:53:28,883 INFO L226 Difference]: Without dead ends: 100 [2019-11-20 04:53:28,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:53:28,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-20 04:53:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2019-11-20 04:53:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-20 04:53:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2019-11-20 04:53:28,893 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2019-11-20 04:53:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:28,893 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2019-11-20 04:53:28,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:53:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2019-11-20 04:53:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 04:53:28,894 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:28,894 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:53:29,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:29,098 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:29,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1700031224, now seen corresponding path program 1 times [2019-11-20 04:53:29,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:29,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [175527182] [2019-11-20 04:53:29,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:29,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:53:29,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:29,344 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 04:53:29,344 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:29,381 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 04:53:29,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [175527182] [2019-11-20 04:53:29,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:29,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 04:53:29,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756291283] [2019-11-20 04:53:29,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:53:29,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:29,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:53:29,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:53:29,383 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 5 states. [2019-11-20 04:53:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:29,424 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2019-11-20 04:53:29,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:53:29,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 04:53:29,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:29,427 INFO L225 Difference]: With dead ends: 89 [2019-11-20 04:53:29,427 INFO L226 Difference]: Without dead ends: 89 [2019-11-20 04:53:29,428 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:53:29,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-20 04:53:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-11-20 04:53:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-20 04:53:29,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2019-11-20 04:53:29,436 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2019-11-20 04:53:29,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:29,436 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2019-11-20 04:53:29,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:53:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2019-11-20 04:53:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 04:53:29,437 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:29,437 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 04:53:29,640 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:29,641 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:29,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:29,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1161359959, now seen corresponding path program 1 times [2019-11-20 04:53:29,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:29,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [970492803] [2019-11-20 04:53:29,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:29,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:53:29,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:29,978 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 04:53:29,979 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:30,067 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 04:53:30,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [970492803] [2019-11-20 04:53:30,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:30,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-20 04:53:30,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412689210] [2019-11-20 04:53:30,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 04:53:30,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:30,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:53:30,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:53:30,068 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand 9 states. [2019-11-20 04:53:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:30,207 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2019-11-20 04:53:30,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:53:30,207 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2019-11-20 04:53:30,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:30,208 INFO L225 Difference]: With dead ends: 88 [2019-11-20 04:53:30,208 INFO L226 Difference]: Without dead ends: 88 [2019-11-20 04:53:30,209 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:53:30,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-20 04:53:30,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-11-20 04:53:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 04:53:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2019-11-20 04:53:30,216 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2019-11-20 04:53:30,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:30,216 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2019-11-20 04:53:30,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 04:53:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2019-11-20 04:53:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 04:53:30,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:30,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:53:30,420 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:30,420 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:30,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:30,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1642419926, now seen corresponding path program 1 times [2019-11-20 04:53:30,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:30,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [894079834] [2019-11-20 04:53:30,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:30,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:53:30,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:30,685 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 04:53:30,685 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:30,688 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:30,688 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:30,688 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 04:53:30,744 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 04:53:30,744 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:30,798 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 04:53:30,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [894079834] [2019-11-20 04:53:30,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:30,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2019-11-20 04:53:30,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767262865] [2019-11-20 04:53:30,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:53:30,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:30,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:53:30,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:53:30,800 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand 6 states. [2019-11-20 04:53:30,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:30,976 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2019-11-20 04:53:30,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:53:30,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-20 04:53:30,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:30,977 INFO L225 Difference]: With dead ends: 91 [2019-11-20 04:53:30,977 INFO L226 Difference]: Without dead ends: 91 [2019-11-20 04:53:30,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:53:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-20 04:53:30,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2019-11-20 04:53:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 04:53:30,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-20 04:53:30,986 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2019-11-20 04:53:30,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:30,986 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-20 04:53:30,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:53:30,987 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-20 04:53:30,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 04:53:30,988 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:30,988 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:53:31,190 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:31,191 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:31,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:31,191 INFO L82 PathProgramCache]: Analyzing trace with hash 2146988745, now seen corresponding path program 1 times [2019-11-20 04:53:31,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:31,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1592062179] [2019-11-20 04:53:31,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/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 04:53:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:31,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:53:31,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:31,393 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 04:53:31,393 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:31,430 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 04:53:31,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1592062179] [2019-11-20 04:53:31,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:31,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 04:53:31,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525553603] [2019-11-20 04:53:31,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:53:31,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:31,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:53:31,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:53:31,432 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 6 states. [2019-11-20 04:53:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:31,484 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2019-11-20 04:53:31,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:53:31,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-20 04:53:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:31,488 INFO L225 Difference]: With dead ends: 78 [2019-11-20 04:53:31,488 INFO L226 Difference]: Without dead ends: 77 [2019-11-20 04:53:31,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:53:31,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-20 04:53:31,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2019-11-20 04:53:31,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-20 04:53:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2019-11-20 04:53:31,494 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 24 [2019-11-20 04:53:31,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:31,494 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2019-11-20 04:53:31,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:53:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2019-11-20 04:53:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 04:53:31,501 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:31,501 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:53:31,703 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:31,708 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:31,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:31,708 INFO L82 PathProgramCache]: Analyzing trace with hash -514884290, now seen corresponding path program 1 times [2019-11-20 04:53:31,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:31,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [819874399] [2019-11-20 04:53:31,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:31,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 04:53:31,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:31,982 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-20 04:53:31,983 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-20 04:53:31,983 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:32,004 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-20 04:53:32,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:32,006 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 04:53:32,006 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-20 04:53:32,006 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:32,094 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:32,094 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 04:53:32,095 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:32,111 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 04:53:32,112 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 04:53:32,113 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 04:53:32,311 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 04:53:32,311 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:53:34,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [819874399] [2019-11-20 04:53:34,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:34,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2019-11-20 04:53:34,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139239781] [2019-11-20 04:53:34,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 04:53:34,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 04:53:34,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=146, Unknown=1, NotChecked=0, Total=182 [2019-11-20 04:53:34,692 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 14 states. [2019-11-20 04:53:35,322 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-20 04:53:35,898 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-11-20 04:53:36,337 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2019-11-20 04:53:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:42,822 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2019-11-20 04:53:42,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:53:42,822 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2019-11-20 04:53:42,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:42,823 INFO L225 Difference]: With dead ends: 80 [2019-11-20 04:53:42,823 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 04:53:42,824 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=98, Invalid=281, Unknown=1, NotChecked=0, Total=380 [2019-11-20 04:53:42,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 04:53:42,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2019-11-20 04:53:42,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-20 04:53:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2019-11-20 04:53:42,830 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 28 [2019-11-20 04:53:42,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:42,830 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2019-11-20 04:53:42,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 04:53:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2019-11-20 04:53:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 04:53:42,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:42,832 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:53:43,035 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:43,035 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:53:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:43,036 INFO L82 PathProgramCache]: Analyzing trace with hash -514884289, now seen corresponding path program 1 times [2019-11-20 04:53:43,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:43,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1287632761] [2019-11-20 04:53:43,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:53:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:43,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-20 04:53:43,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:43,263 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:43,264 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-20 04:53:43,264 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:43,291 INFO L567 ElimStorePlain]: treesize reduction 10, result has 75.0 percent of original size [2019-11-20 04:53:43,355 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-20 04:53:43,356 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-20 04:53:43,356 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:43,396 INFO L567 ElimStorePlain]: treesize reduction 10, result has 80.0 percent of original size [2019-11-20 04:53:43,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:43,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:43,397 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 04:53:43,398 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:40 [2019-11-20 04:53:43,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:43,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:43,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:43,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:43,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:43,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:43,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:43,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:43,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:43,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:43,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:43,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:43,637 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2019-11-20 04:53:45,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:45,795 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:45,795 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2019-11-20 04:53:45,796 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:45,823 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:45,824 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 50 [2019-11-20 04:53:45,824 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:45,830 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 04:53:45,830 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2019-11-20 04:53:45,831 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:45,889 INFO L567 ElimStorePlain]: treesize reduction 29, result has 42.0 percent of original size [2019-11-20 04:53:45,892 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 04:53:45,892 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:45,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:45,900 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:45,901 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:99, output treesize:11 [2019-11-20 04:53:46,042 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 04:53:46,042 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:46,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:47,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:47,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:47,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:47,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:47,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:47,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:47,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:53:52,313 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-20 04:53:52,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:53:54,555 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-11-20 04:53:57,007 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 04:53:57,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287632761] [2019-11-20 04:53:57,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:57,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2019-11-20 04:53:57,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294688135] [2019-11-20 04:53:57,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 04:53:57,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:57,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 04:53:57,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=168, Unknown=4, NotChecked=0, Total=210 [2019-11-20 04:53:57,010 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 15 states. [2019-11-20 04:54:07,374 WARN L191 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-20 04:54:18,065 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-20 04:54:30,445 WARN L191 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-11-20 04:54:40,920 WARN L191 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2019-11-20 04:55:15,971 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 47 DAG size of output: 21 [2019-11-20 04:55:36,087 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2019-11-20 04:56:21,122 WARN L191 SmtUtils]: Spent 40.55 s on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-11-20 04:56:29,388 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_probe1_6_~a.base_BEFORE_CALL_12 (_ BitVec 32)) (v_probe1_6_~a.offset_BEFORE_CALL_6 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe1_6_~a.offset_BEFORE_CALL_6 (_ bv4 32)))) (or (exists ((|v_ldv_malloc_#t~malloc12.base_28| (_ BitVec 32)) (v_ldv_malloc_~size_41 (_ BitVec 32))) (and (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_28|) (_ bv0 1)) (not (bvsle (bvadd v_probe1_6_~a.offset_BEFORE_CALL_6 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_28| v_ldv_malloc_~size_41) v_probe1_6_~a.base_BEFORE_CALL_12))))) (not (bvsle (_ bv0 32) v_probe1_6_~a.offset_BEFORE_CALL_6)) (not (bvsle v_probe1_6_~a.offset_BEFORE_CALL_6 .cse0)) (bvsle .cse0 (select |c_#length| v_probe1_6_~a.base_BEFORE_CALL_12))))) (exists ((v_probe1_6_~a.base_BEFORE_CALL_8 (_ BitVec 32))) (= (_ bv4 32) (select |c_#length| v_probe1_6_~a.base_BEFORE_CALL_8))) (or (bvsle (_ bv0 32) |c_~#a6~0.offset|) (forall ((|v_ldv_malloc_#t~malloc12.base_28| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_28|) (_ bv0 1))))) (forall ((v_prenex_6 (_ BitVec 32)) (v_ldv_malloc_~size_41 (_ BitVec 32))) (or (not (= (select |c_#valid| v_prenex_6) (_ bv0 1))) (bvsle (bvadd |c_~#a6~0.offset| (_ bv4 32)) (select (store |c_#length| v_prenex_6 v_ldv_malloc_~size_41) |c_~#a6~0.base|)))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (or (forall ((v_prenex_5 (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| v_prenex_5)))) (bvsle |c_~#a6~0.offset| (bvadd |c_~#a6~0.offset| (_ bv4 32)))) (exists ((v_prenex_4 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_4) (_ bv0 1)))) is different from false [2019-11-20 04:56:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:56:55,178 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2019-11-20 04:56:55,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 04:56:55,179 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2019-11-20 04:56:55,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:56:55,180 INFO L225 Difference]: With dead ends: 77 [2019-11-20 04:56:55,180 INFO L226 Difference]: Without dead ends: 60 [2019-11-20 04:56:55,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 121.1s TimeCoverageRelationStatistics Valid=146, Invalid=481, Unknown=27, NotChecked=48, Total=702 [2019-11-20 04:56:55,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-20 04:56:55,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2019-11-20 04:56:55,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-20 04:56:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2019-11-20 04:56:55,184 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 28 [2019-11-20 04:56:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:56:55,185 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2019-11-20 04:56:55,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 04:56:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2019-11-20 04:56:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 04:56:55,186 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:56:55,186 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:56:55,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:55,393 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-20 04:56:55,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:56:55,393 INFO L82 PathProgramCache]: Analyzing trace with hash -441238595, now seen corresponding path program 1 times [2019-11-20 04:56:55,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:56:55,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [280882378] [2019-11-20 04:56:55,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03dfa1db-02cd-486d-a159-0d82afeb8e90/bin/uautomizer/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:56:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:56:55,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-20 04:56:55,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:56:55,676 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-20 04:56:55,677 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-20 04:56:55,677 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:56:55,697 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-20 04:56:55,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:56:55,698 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 04:56:55,698 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-20 04:56:55,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:56:55,712 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-20 04:56:55,712 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:56:55,713 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:56:55,713 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:56:55,714 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-20 04:56:55,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:56:55,786 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2019-11-20 04:56:55,786 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:56:55,802 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:56:55,804 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2019-11-20 04:56:55,805 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:56:55,811 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:56:55,812 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-11-20 04:56:55,812 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:16 [2019-11-20 04:56:57,948 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:56:57,949 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-20 04:56:57,949 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:56:57,984 INFO L567 ElimStorePlain]: treesize reduction 18, result has 45.5 percent of original size [2019-11-20 04:56:57,985 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 04:56:57,985 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:15 [2019-11-20 04:56:58,017 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 04:56:58,017 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:57:04,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:57:04,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:57:04,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:57:04,276 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-20 04:57:04,484 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 04:57:04,485 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 04:57:04,488 INFO L168 Benchmark]: Toolchain (without parser) took 220613.44 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 276.8 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -224.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:57:04,488 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:57:04,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:57:04,489 INFO L168 Benchmark]: Boogie Preprocessor took 87.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:57:04,489 INFO L168 Benchmark]: RCFGBuilder took 1426.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 111.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 11.5 GB. [2019-11-20 04:57:04,489 INFO L168 Benchmark]: TraceAbstraction took 218481.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 139.5 MB). Free memory was 973.5 MB in the beginning and 1.2 GB in the end (delta: -195.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:57:04,491 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 614.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.98 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: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1426.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 111.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 218481.13 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 139.5 MB). Free memory was 973.5 MB in the beginning and 1.2 GB in the end (delta: -195.9 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...