./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 ac205ef89a28814c553e9a519c996fc887772dd9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2019-11-19 22:14:19,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:14:19,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:14:19,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:14:19,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:14:19,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:14:19,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:14:19,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:14:19,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:14:19,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:14:19,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:14:19,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:14:19,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:14:19,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:14:19,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:14:19,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:14:19,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:14:19,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:14:19,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:14:19,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:14:19,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:14:19,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:14:19,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:14:19,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:14:19,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:14:19,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:14:19,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:14:19,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:14:19,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:14:19,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:14:19,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:14:19,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:14:19,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:14:19,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:14:19,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:14:19,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:14:19,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:14:19,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:14:19,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:14:19,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:14:19,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:14:19,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-19 22:14:19,861 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:14:19,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:14:19,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:14:19,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:14:19,872 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:14:19,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:14:19,873 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:14:19,873 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:14:19,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:14:19,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:14:19,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:14:19,874 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-19 22:14:19,874 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-19 22:14:19,874 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-19 22:14:19,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:14:19,875 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:14:19,876 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:14:19,876 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:14:19,876 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:14:19,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:14:19,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:14:19,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:14:19,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:14:19,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:14:19,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:14:19,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:14:19,878 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:14:19,878 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:14:19,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:14:19,878 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_2831667d-f599-44ea-bad5-623901522736/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 -> ac205ef89a28814c553e9a519c996fc887772dd9 [2019-11-19 22:14:20,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:14:20,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:14:20,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:14:20,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:14:20,065 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:14:20,065 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i [2019-11-19 22:14:20,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/data/492bc0178/ee54fb59d1d442b9a8f931c9b191b4b5/FLAG2814c5028 [2019-11-19 22:14:20,612 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:14:20,613 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i [2019-11-19 22:14:20,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/data/492bc0178/ee54fb59d1d442b9a8f931c9b191b4b5/FLAG2814c5028 [2019-11-19 22:14:20,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/bin/uautomizer/data/492bc0178/ee54fb59d1d442b9a8f931c9b191b4b5 [2019-11-19 22:14:20,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:14:20,907 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-19 22:14:20,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:14:20,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:14:20,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:14:20,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:14:20" (1/1) ... [2019-11-19 22:14:20,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2032ab9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:20, skipping insertion in model container [2019-11-19 22:14:20,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:14:20" (1/1) ... [2019-11-19 22:14:20,920 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:14:20,960 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:14:21,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:14:21,421 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:14:21,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:14:21,568 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:14:21,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21 WrapperNode [2019-11-19 22:14:21,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:14:21,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:14:21,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:14:21,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:14:21,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... [2019-11-19 22:14:21,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... [2019-11-19 22:14:21,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... [2019-11-19 22:14:21,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... [2019-11-19 22:14:21,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... [2019-11-19 22:14:21,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... [2019-11-19 22:14:21,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... [2019-11-19 22:14:21,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:14:21,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:14:21,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:14:21,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:14:21,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:14:21,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-19 22:14:21,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:14:21,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-19 22:14:21,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-19 22:14:21,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-19 22:14:21,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-19 22:14:21,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-19 22:14:21,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-19 22:14:21,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-19 22:14:21,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-19 22:14:21,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-19 22:14:21,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-19 22:14:21,728 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-19 22:14:21,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-19 22:14:21,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-19 22:14:21,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-19 22:14:21,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-19 22:14:21,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-19 22:14:21,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-19 22:14:21,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-19 22:14:21,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-19 22:14:21,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-19 22:14:21,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-19 22:14:21,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-19 22:14:21,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-19 22:14:21,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-19 22:14:21,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-19 22:14:21,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-19 22:14:21,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-19 22:14:21,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-19 22:14:21,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-19 22:14:21,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-19 22:14:21,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-19 22:14:21,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-19 22:14:21,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-19 22:14:21,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-19 22:14:21,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-19 22:14:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-19 22:14:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-19 22:14:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-19 22:14:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-19 22:14:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_get_clientdata [2019-11-19 22:14:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_set_clientdata [2019-11-19 22:14:21,734 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_2_11 [2019-11-19 22:14:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure free_11 [2019-11-19 22:14:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-19 22:14:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-19 22:14:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-19 22:14:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-19 22:14:21,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-19 22:14:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-19 22:14:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-19 22:14:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-19 22:14:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-19 22:14:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-19 22:14:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-19 22:14:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-19 22:14:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-19 22:14:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-19 22:14:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-19 22:14:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-19 22:14:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-19 22:14:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-19 22:14:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-19 22:14:21,738 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-19 22:14:21,739 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-19 22:14:21,739 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-19 22:14:21,739 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-19 22:14:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-19 22:14:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-19 22:14:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-19 22:14:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-19 22:14:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-19 22:14:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-19 22:14:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-19 22:14:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-19 22:14:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-19 22:14:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-19 22:14:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-19 22:14:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-19 22:14:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-19 22:14:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-19 22:14:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-19 22:14:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-19 22:14:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-19 22:14:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-19 22:14:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-19 22:14:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-19 22:14:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-19 22:14:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-19 22:14:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-19 22:14:21,745 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-19 22:14:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-19 22:14:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-19 22:14:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-19 22:14:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-19 22:14:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-19 22:14:21,746 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-19 22:14:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-19 22:14:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-19 22:14:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-19 22:14:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-19 22:14:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-19 22:14:21,747 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-19 22:14:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-19 22:14:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-19 22:14:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-19 22:14:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-19 22:14:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-19 22:14:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-19 22:14:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-19 22:14:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-19 22:14:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-19 22:14:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-19 22:14:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-19 22:14:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-19 22:14:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-19 22:14:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-19 22:14:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-19 22:14:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-19 22:14:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-19 22:14:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-19 22:14:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-19 22:14:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-19 22:14:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-19 22:14:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-19 22:14:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-19 22:14:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-19 22:14:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-19 22:14:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-19 22:14:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-19 22:14:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-19 22:14:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-19 22:14:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-19 22:14:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-19 22:14:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-19 22:14:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-19 22:14:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-19 22:14:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-19 22:14:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-19 22:14:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-19 22:14:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-19 22:14:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-19 22:14:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-19 22:14:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-19 22:14:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-19 22:14:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-19 22:14:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-19 22:14:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-19 22:14:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-19 22:14:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-19 22:14:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-19 22:14:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-19 22:14:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-19 22:14:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-19 22:14:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-19 22:14:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-19 22:14:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-19 22:14:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-19 22:14:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-19 22:14:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-19 22:14:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-19 22:14:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-19 22:14:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-19 22:14:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-19 22:14:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 22:14:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-19 22:14:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-19 22:14:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-19 22:14:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-19 22:14:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-19 22:14:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-19 22:14:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-19 22:14:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-19 22:14:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-19 22:14:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-19 22:14:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-19 22:14:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-19 22:14:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-19 22:14:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-19 22:14:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:14:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-19 22:14:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-19 22:14:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-19 22:14:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-19 22:14:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-19 22:14:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 22:14:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 22:14:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-19 22:14:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-19 22:14:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-19 22:14:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-19 22:14:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-19 22:14:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-19 22:14:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-19 22:14:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-19 22:14:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-19 22:14:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-19 22:14:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-19 22:14:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-19 22:14:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-19 22:14:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-19 22:14:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-19 22:14:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-19 22:14:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-19 22:14:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_get_clientdata [2019-11-19 22:14:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_set_clientdata [2019-11-19 22:14:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_2_11 [2019-11-19 22:14:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure free_11 [2019-11-19 22:14:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-19 22:14:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-19 22:14:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-19 22:14:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:14:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-19 22:14:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:14:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-19 22:14:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-19 22:14:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-19 22:14:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-19 22:14:22,448 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-19 22:14:22,845 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-19 22:14:23,355 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:14:23,360 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-19 22:14:23,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:14:23 BoogieIcfgContainer [2019-11-19 22:14:23,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:14:23,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:14:23,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:14:23,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:14:23,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:14:20" (1/3) ... [2019-11-19 22:14:23,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b7e58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:14:23, skipping insertion in model container [2019-11-19 22:14:23,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:14:21" (2/3) ... [2019-11-19 22:14:23,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b7e58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:14:23, skipping insertion in model container [2019-11-19 22:14:23,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:14:23" (3/3) ... [2019-11-19 22:14:23,370 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test11_1.i [2019-11-19 22:14:23,379 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:14:23,388 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 96 error locations. [2019-11-19 22:14:23,398 INFO L249 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2019-11-19 22:14:23,415 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:14:23,416 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-19 22:14:23,416 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:14:23,416 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:14:23,416 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:14:23,416 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:14:23,416 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:14:23,416 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:14:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-11-19 22:14:23,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 22:14:23,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:14:23,453 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:14:23,457 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:14:23,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:14:23,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1480943629, now seen corresponding path program 1 times [2019-11-19 22:14:23,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:14:23,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [970690307] [2019-11-19 22:14:23,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:14:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:14:23,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:14:23,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:14:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:14:23,839 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:14:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:14:23,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [970690307] [2019-11-19 22:14:23,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:14:23,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-19 22:14:23,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13631138] [2019-11-19 22:14:23,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:14:23,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:14:23,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:14:23,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:14:23,959 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 5 states. [2019-11-19 22:14:24,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:14:24,113 INFO L93 Difference]: Finished difference Result 151 states and 172 transitions. [2019-11-19 22:14:24,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:14:24,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-19 22:14:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:14:24,132 INFO L225 Difference]: With dead ends: 151 [2019-11-19 22:14:24,132 INFO L226 Difference]: Without dead ends: 148 [2019-11-19 22:14:24,134 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:14:24,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-11-19 22:14:24,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2019-11-19 22:14:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-19 22:14:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 126 transitions. [2019-11-19 22:14:24,213 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 126 transitions. Word has length 16 [2019-11-19 22:14:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:14:24,214 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 126 transitions. [2019-11-19 22:14:24,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:14:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 126 transitions. [2019-11-19 22:14:24,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 22:14:24,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:14:24,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:14:24,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:14:24,423 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:14:24,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:14:24,424 INFO L82 PathProgramCache]: Analyzing trace with hash 261866706, now seen corresponding path program 1 times [2019-11-19 22:14:24,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:14:24,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [667422556] [2019-11-19 22:14:24,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:14:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:14:24,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:14:24,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:14:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:14:24,707 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:14:24,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:14:24,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [667422556] [2019-11-19 22:14:24,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:14:24,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 22:14:24,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065374920] [2019-11-19 22:14:24,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:14:24,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:14:24,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:14:24,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:14:24,762 INFO L87 Difference]: Start difference. First operand 114 states and 126 transitions. Second operand 3 states. [2019-11-19 22:14:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:14:25,016 INFO L93 Difference]: Finished difference Result 168 states and 192 transitions. [2019-11-19 22:14:25,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:14:25,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-19 22:14:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:14:25,019 INFO L225 Difference]: With dead ends: 168 [2019-11-19 22:14:25,019 INFO L226 Difference]: Without dead ends: 165 [2019-11-19 22:14:25,020 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:14:25,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-19 22:14:25,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 110. [2019-11-19 22:14:25,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-19 22:14:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 118 transitions. [2019-11-19 22:14:25,033 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 118 transitions. Word has length 16 [2019-11-19 22:14:25,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:14:25,033 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 118 transitions. [2019-11-19 22:14:25,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:14:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 118 transitions. [2019-11-19 22:14:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-19 22:14:25,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:14:25,034 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:14:25,237 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:14:25,238 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:14:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:14:25,238 INFO L82 PathProgramCache]: Analyzing trace with hash 2012202911, now seen corresponding path program 1 times [2019-11-19 22:14:25,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:14:25,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1774175588] [2019-11-19 22:14:25,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:14:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:14:25,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:14:25,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:14:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:14:25,508 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:14:25,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:14:25,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1774175588] [2019-11-19 22:14:25,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 22:14:25,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-19 22:14:25,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829225607] [2019-11-19 22:14:25,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:14:25,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:14:25,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:14:25,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:14:25,541 INFO L87 Difference]: Start difference. First operand 110 states and 118 transitions. Second operand 5 states. [2019-11-19 22:14:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:14:25,582 INFO L93 Difference]: Finished difference Result 109 states and 117 transitions. [2019-11-19 22:14:25,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:14:25,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-19 22:14:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:14:25,585 INFO L225 Difference]: With dead ends: 109 [2019-11-19 22:14:25,585 INFO L226 Difference]: Without dead ends: 109 [2019-11-19 22:14:25,585 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:14:25,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-19 22:14:25,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-19 22:14:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-19 22:14:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2019-11-19 22:14:25,594 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 21 [2019-11-19 22:14:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:14:25,594 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2019-11-19 22:14:25,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:14:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2019-11-19 22:14:25,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-19 22:14:25,595 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:14:25,595 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:14:25,798 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:14:25,802 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:14:25,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:14:25,802 INFO L82 PathProgramCache]: Analyzing trace with hash 2012202945, now seen corresponding path program 1 times [2019-11-19 22:14:25,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:14:25,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1338840560] [2019-11-19 22:14:25,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:14:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:14:26,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-19 22:14:26,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:14:26,119 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 [2019-11-19 22:14:26,119 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:14:26,131 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:14:26,135 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 [2019-11-19 22:14:26,136 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 22:14:26,152 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:14:26,152 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:14:26,153 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-19 22:14:28,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 22:14:28,318 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 12 treesize of output 14 [2019-11-19 22:14:28,318 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:14:28,343 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:14:28,362 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:14:28,362 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 13 treesize of output 17 [2019-11-19 22:14:28,363 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 22:14:28,381 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:14:28,381 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:14:28,382 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-19 22:14:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:14:28,412 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:14:28,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 22:14:30,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:14:30,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:14:30,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 22:14:30,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 22:14:30,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:14:30,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 22:14:30,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 22:14:31,524 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-19 22:14:31,533 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:14:34,222 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-19 22:14:34,238 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-19 22:14:34,239 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:14:34,258 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:14:34,260 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-19 22:14:34,261 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 22:14:34,279 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:14:34,280 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:14:34,280 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-19 22:14:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:14:34,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1338840560] [2019-11-19 22:14:34,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 22:14:34,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-19 22:14:34,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772039712] [2019-11-19 22:14:34,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-19 22:14:34,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:14:34,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-19 22:14:34,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=199, Unknown=3, NotChecked=0, Total=240 [2019-11-19 22:14:34,362 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand 16 states. [2019-11-19 22:14:49,357 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (forall ((v_entry_point_~c11~0.base_BEFORE_CALL_2 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32)) (v_entry_point_~c11~0.offset_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_20| (_ BitVec 32))) (let ((.cse0 (bvadd v_entry_point_~c11~0.offset_BEFORE_CALL_4 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) v_entry_point_~c11~0.offset_BEFORE_CALL_4)) (bvsle .cse0 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_20| ldv_malloc_~size) v_entry_point_~c11~0.base_BEFORE_CALL_2)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_20|) (_ bv0 1))) (exists ((v_ldv_malloc_~size_24 (_ BitVec 32)) (v_prenex_1 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~c11~0.offset_BEFORE_CALL_4 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_24) v_entry_point_~c11~0.base_BEFORE_CALL_2))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)))) (not (bvsle v_entry_point_~c11~0.offset_BEFORE_CALL_4 .cse0))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|)) is different from false [2019-11-19 22:15:00,802 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-19 22:15:29,628 WARN L191 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2019-11-19 22:15:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:15:56,841 INFO L93 Difference]: Finished difference Result 267 states and 312 transitions. [2019-11-19 22:15:56,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-19 22:15:56,842 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2019-11-19 22:15:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:15:56,845 INFO L225 Difference]: With dead ends: 267 [2019-11-19 22:15:56,845 INFO L226 Difference]: Without dead ends: 267 [2019-11-19 22:15:56,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=4, NotChecked=46, Total=650 [2019-11-19 22:15:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-11-19 22:15:56,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 127. [2019-11-19 22:15:56,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-11-19 22:15:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 144 transitions. [2019-11-19 22:15:56,864 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 144 transitions. Word has length 21 [2019-11-19 22:15:56,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:15:56,864 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 144 transitions. [2019-11-19 22:15:56,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-19 22:15:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 144 transitions. [2019-11-19 22:15:56,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-19 22:15:56,865 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:15:56,866 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:15:57,066 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:15:57,066 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:15:57,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:15:57,067 INFO L82 PathProgramCache]: Analyzing trace with hash 2012202944, now seen corresponding path program 1 times [2019-11-19 22:15:57,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:15:57,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1291869497] [2019-11-19 22:15:57,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:15:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:15:57,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-19 22:15:57,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:15:57,346 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-19 22:15:57,346 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:15:57,348 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:15:57,348 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 22:15:57,348 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-19 22:15:57,428 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:15:57,428 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 [2019-11-19 22:15:57,429 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:15:57,444 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-19 22:15:57,444 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. [2019-11-19 22:15:57,444 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-19 22:15:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:15:57,470 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:01,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:01,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1291869497] [2019-11-19 22:16:01,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 22:16:01,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-19 22:16:01,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745226598] [2019-11-19 22:16:01,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-19 22:16:01,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:01,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-19 22:16:01,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-19 22:16:01,769 INFO L87 Difference]: Start difference. First operand 127 states and 144 transitions. Second operand 13 states. [2019-11-19 22:16:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:48,299 INFO L93 Difference]: Finished difference Result 249 states and 296 transitions. [2019-11-19 22:16:48,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-19 22:16:48,299 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2019-11-19 22:16:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:48,302 INFO L225 Difference]: With dead ends: 249 [2019-11-19 22:16:48,302 INFO L226 Difference]: Without dead ends: 249 [2019-11-19 22:16:48,302 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=76, Invalid=265, Unknown=1, NotChecked=0, Total=342 [2019-11-19 22:16:48,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-11-19 22:16:48,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 124. [2019-11-19 22:16:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-19 22:16:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 139 transitions. [2019-11-19 22:16:48,335 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 139 transitions. Word has length 21 [2019-11-19 22:16:48,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:48,335 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 139 transitions. [2019-11-19 22:16:48,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-19 22:16:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 139 transitions. [2019-11-19 22:16:48,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-19 22:16:48,337 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:48,337 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:48,540 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:16:48,540 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:16:48,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:48,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1718799938, now seen corresponding path program 1 times [2019-11-19 22:16:48,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:48,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1660894335] [2019-11-19 22:16:48,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:16:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:48,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 22:16:48,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:16:48,803 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:16:48,830 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1660894335] [2019-11-19 22:16:48,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 22:16:48,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-19 22:16:48,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497014733] [2019-11-19 22:16:48,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:16:48,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:48,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:16:48,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:16:48,831 INFO L87 Difference]: Start difference. First operand 124 states and 139 transitions. Second operand 5 states. [2019-11-19 22:16:48,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:48,851 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2019-11-19 22:16:48,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:16:48,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-19 22:16:48,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:48,853 INFO L225 Difference]: With dead ends: 118 [2019-11-19 22:16:48,853 INFO L226 Difference]: Without dead ends: 116 [2019-11-19 22:16:48,854 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:16:48,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-19 22:16:48,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2019-11-19 22:16:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-19 22:16:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2019-11-19 22:16:48,860 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 21 [2019-11-19 22:16:48,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:48,860 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2019-11-19 22:16:48,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:16:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2019-11-19 22:16:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-19 22:16:48,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:48,861 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:49,065 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:16:49,067 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:16:49,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:49,067 INFO L82 PathProgramCache]: Analyzing trace with hash -2046218738, now seen corresponding path program 1 times [2019-11-19 22:16:49,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:49,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [843896661] [2019-11-19 22:16:49,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:16:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:49,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:16:49,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:16:49,261 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:49,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:16:49,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [843896661] [2019-11-19 22:16:49,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:16:49,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-19 22:16:49,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645483961] [2019-11-19 22:16:49,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 22:16:49,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:49,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:16:49,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:16:49,292 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 5 states. [2019-11-19 22:16:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:49,379 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2019-11-19 22:16:49,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:16:49,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-19 22:16:49,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:49,381 INFO L225 Difference]: With dead ends: 146 [2019-11-19 22:16:49,381 INFO L226 Difference]: Without dead ends: 146 [2019-11-19 22:16:49,381 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 [2019-11-19 22:16:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-19 22:16:49,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 118. [2019-11-19 22:16:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-19 22:16:49,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2019-11-19 22:16:49,395 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 22 [2019-11-19 22:16:49,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:49,395 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2019-11-19 22:16:49,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 22:16:49,395 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2019-11-19 22:16:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-19 22:16:49,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:49,396 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:49,607 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:16:49,608 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:16:49,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:49,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1158715057, now seen corresponding path program 1 times [2019-11-19 22:16:49,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:49,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1833741575] [2019-11-19 22:16:49,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:16:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:49,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:16:49,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:16:49,860 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:16:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:16:49,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1833741575] [2019-11-19 22:16:49,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 22:16:49,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-19 22:16:49,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611259245] [2019-11-19 22:16:49,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-19 22:16:49,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:16:49,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-19 22:16:49,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:16:49,978 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand 9 states. [2019-11-19 22:16:50,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:16:50,287 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2019-11-19 22:16:50,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:16:50,287 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-11-19 22:16:50,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:16:50,288 INFO L225 Difference]: With dead ends: 117 [2019-11-19 22:16:50,289 INFO L226 Difference]: Without dead ends: 117 [2019-11-19 22:16:50,289 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:16:50,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-11-19 22:16:50,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-11-19 22:16:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-19 22:16:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2019-11-19 22:16:50,297 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 22 [2019-11-19 22:16:50,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:16:50,297 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2019-11-19 22:16:50,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-19 22:16:50,297 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2019-11-19 22:16:50,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-19 22:16:50,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:16:50,298 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:16:50,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:16:50,501 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, alloc_2_11Err5REQUIRES_VIOLATION, alloc_2_11Err0REQUIRES_VIOLATION, alloc_2_11Err8ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err1REQUIRES_VIOLATION, alloc_2_11Err2REQUIRES_VIOLATION, alloc_2_11Err7ASSERT_VIOLATIONMEMORY_FREE, alloc_2_11Err3REQUIRES_VIOLATION, alloc_2_11Err4REQUIRES_VIOLATION, alloc_2_11Err6ASSERT_VIOLATIONMEMORY_FREE, free_11Err0ASSERT_VIOLATIONMEMORY_FREE, free_11Err1ASSERT_VIOLATIONMEMORY_FREE, free_11Err2ASSERT_VIOLATIONMEMORY_FREE, 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_pointErr11ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-19 22:16:50,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:16:50,502 INFO L82 PathProgramCache]: Analyzing trace with hash 2017833562, now seen corresponding path program 1 times [2019-11-19 22:16:50,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:16:50,502 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1804202574] [2019-11-19 22:16:50,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2831667d-f599-44ea-bad5-623901522736/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 [2019-11-19 22:16:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:16:50,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-19 22:16:50,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:16:50,729 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 22:16:50,729 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-19 22:16:50,730 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 22:16:50,743 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-19 22:16:50,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:50,745 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. [2019-11-19 22:16:50,745 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-19 22:16:50,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:50,753 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:50,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:50,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:16:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:16:56,907 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:17:01,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 22:17:01,225 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-19 22:17:01,228 INFO L168 Benchmark]: Toolchain (without parser) took 160321.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -110.9 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:17:01,228 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:17:01,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -132.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:17:01,229 INFO L168 Benchmark]: Boogie Preprocessor took 91.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:17:01,230 INFO L168 Benchmark]: RCFGBuilder took 1700.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 948.1 MB in the end (delta: 125.4 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:17:01,230 INFO L168 Benchmark]: TraceAbstraction took 157863.29 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -108.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:17:01,232 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 661.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -132.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 91.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1700.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 948.1 MB in the end (delta: 125.4 MB). Peak memory consumption was 125.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 157863.29 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -108.9 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...