./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.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_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/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 a95368535a8c20a6128f13edcb77bbb1dbe40e6b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 06:13:33,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:13:33,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:13:33,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:13:33,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:13:33,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:13:33,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:13:33,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:13:33,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:13:33,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:13:33,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:13:33,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:13:33,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:13:33,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:13:33,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:13:33,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:13:33,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:13:33,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:13:33,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:13:33,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:13:33,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:13:33,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:13:33,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:13:33,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:13:33,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:13:33,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:13:33,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:13:33,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:13:33,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:13:33,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:13:33,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:13:33,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:13:33,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:13:33,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:13:33,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:13:33,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:13:33,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:13:33,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:13:33,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:13:33,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:13:33,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:13:33,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 06:13:33,097 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:13:33,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:13:33,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:13:33,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:13:33,109 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:13:33,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:13:33,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:13:33,110 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 06:13:33,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:13:33,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:13:33,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:13:33,110 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 06:13:33,111 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 06:13:33,111 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 06:13:33,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:13:33,111 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 06:13:33,111 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 06:13:33,112 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:13:33,113 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:13:33,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:13:33,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:13:33,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:13:33,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:13:33,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:13:33,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:13:33,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:13:33,115 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 06:13:33,115 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 06:13:33,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 06:13:33,115 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_592619c1-3c35-45b2-b056-780332e228d2/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 -> a95368535a8c20a6128f13edcb77bbb1dbe40e6b [2019-11-20 06:13:33,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:13:33,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:13:33,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:13:33,300 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:13:33,300 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:13:33,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2019-11-20 06:13:33,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/data/b212ad820/18117f5ff7104036925a6dd78fee0125/FLAGb0e4cd1ee [2019-11-20 06:13:33,825 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:13:33,825 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2019-11-20 06:13:33,846 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/data/b212ad820/18117f5ff7104036925a6dd78fee0125/FLAGb0e4cd1ee [2019-11-20 06:13:34,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/data/b212ad820/18117f5ff7104036925a6dd78fee0125 [2019-11-20 06:13:34,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:13:34,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 06:13:34,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:13:34,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:13:34,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:13:34,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:34,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ee6956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34, skipping insertion in model container [2019-11-20 06:13:34,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:34,178 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:13:34,239 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:13:34,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:13:34,726 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:13:34,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:13:34,936 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:13:34,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34 WrapperNode [2019-11-20 06:13:34,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:13:34,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:13:34,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:13:34,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:13:34,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:34,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:34,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:34,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:35,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:35,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:35,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... [2019-11-20 06:13:35,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:13:35,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:13:35,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:13:35,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:13:35,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:13:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 06:13:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:13:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 06:13:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 06:13:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 06:13:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 06:13:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 06:13:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 06:13:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 06:13:35,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 06:13:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 06:13:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 06:13:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 06:13:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 06:13:35,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 06:13:35,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 06:13:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 06:13:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 06:13:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 06:13:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 06:13:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 06:13:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 06:13:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 06:13:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 06:13:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 06:13:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 06:13:35,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 06:13:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 06:13:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 06:13:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 06:13:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 06:13:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 06:13:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 06:13:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 06:13:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 06:13:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 06:13:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 06:13:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 06:13:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 06:13:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 06:13:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 06:13:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_unsafe_17 [2019-11-20 06:13:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-20 06:13:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 06:13:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 06:13:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 06:13:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 06:13:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 06:13:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 06:13:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 06:13:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 06:13:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 06:13:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 06:13:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 06:13:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 06:13:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 06:13:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 06:13:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 06:13:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 06:13:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 06:13:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 06:13:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 06:13:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 06:13:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 06:13:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 06:13:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 06:13:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 06:13:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 06:13:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 06:13:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 06:13:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 06:13:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 06:13:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 06:13:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 06:13:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 06:13:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 06:13:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 06:13:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 06:13:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 06:13:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 06:13:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 06:13:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 06:13:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 06:13:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 06:13:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 06:13:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 06:13:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 06:13:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 06:13:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 06:13:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 06:13:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 06:13:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 06:13:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 06:13:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 06:13:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 06:13:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 06:13:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 06:13:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 06:13:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 06:13:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 06:13:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 06:13:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 06:13:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 06:13:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 06:13:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 06:13:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 06:13:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 06:13:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 06:13:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 06:13:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 06:13:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 06:13:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 06:13:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 06:13:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 06:13:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 06:13:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 06:13:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 06:13:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 06:13:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 06:13:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 06:13:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 06:13:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 06:13:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 06:13:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 06:13:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 06:13:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 06:13:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 06:13:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 06:13:35,121 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 06:13:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 06:13:35,122 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 06:13:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 06:13:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 06:13:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 06:13:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 06:13:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 06:13:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 06:13:35,126 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 06:13:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 06:13:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 06:13:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 06:13:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 06:13:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 06:13:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 06:13:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 06:13:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 06:13:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 06:13:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 06:13:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 06:13:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 06:13:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 06:13:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 06:13:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 06:13:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 06:13:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 06:13:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 06:13:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 06:13:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 06:13:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 06:13:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 06:13:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 06:13:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 06:13:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 06:13:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 06:13:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 06:13:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 06:13:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 06:13:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 06:13:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 06:13:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 06:13:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 06:13:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 06:13:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 06:13:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 06:13:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 06:13:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 06:13:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 06:13:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 06:13:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:13:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 06:13:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 06:13:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 06:13:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 06:13:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 06:13:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 06:13:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 06:13:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 06:13:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 06:13:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 06:13:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 06:13:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 06:13:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 06:13:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 06:13:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 06:13:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 06:13:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 06:13:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 06:13:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 06:13:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 06:13:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 06:13:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 06:13:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 06:13:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 06:13:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_unsafe_17 [2019-11-20 06:13:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-20 06:13:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 06:13:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 06:13:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 06:13:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:13:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 06:13:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:13:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 06:13:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 06:13:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 06:13:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 06:13:35,861 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 06:13:36,301 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 06:13:36,837 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:13:36,838 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 06:13:36,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:36 BoogieIcfgContainer [2019-11-20 06:13:36,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:13:36,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:13:36,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:13:36,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:13:36,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:13:34" (1/3) ... [2019-11-20 06:13:36,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5901e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:13:36, skipping insertion in model container [2019-11-20 06:13:36,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:34" (2/3) ... [2019-11-20 06:13:36,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5901e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:13:36, skipping insertion in model container [2019-11-20 06:13:36,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:36" (3/3) ... [2019-11-20 06:13:36,849 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-1.i [2019-11-20 06:13:36,858 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:13:36,867 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 88 error locations. [2019-11-20 06:13:36,877 INFO L249 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2019-11-20 06:13:36,902 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:13:36,902 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 06:13:36,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:13:36,903 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:13:36,903 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:13:36,903 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:13:36,903 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:13:36,903 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:13:36,930 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-11-20 06:13:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 06:13:36,937 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:36,938 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:36,939 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:36,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:36,943 INFO L82 PathProgramCache]: Analyzing trace with hash 643410278, now seen corresponding path program 1 times [2019-11-20 06:13:36,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:36,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2145105239] [2019-11-20 06:13:36,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:37,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 06:13:37,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:37,329 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:13:37,329 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:13:37,338 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:13:37,338 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:13:37,339 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 06:13:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:37,368 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:37,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2145105239] [2019-11-20 06:13:37,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:13:37,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 06:13:37,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350759112] [2019-11-20 06:13:37,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:13:37,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:37,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:13:37,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:13:37,449 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 5 states. [2019-11-20 06:13:37,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:37,701 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2019-11-20 06:13:37,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:13:37,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 06:13:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:37,716 INFO L225 Difference]: With dead ends: 83 [2019-11-20 06:13:37,716 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 06:13:37,718 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:13:37,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 06:13:37,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2019-11-20 06:13:37,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-20 06:13:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2019-11-20 06:13:37,776 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 16 [2019-11-20 06:13:37,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:37,777 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2019-11-20 06:13:37,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:13:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2019-11-20 06:13:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 06:13:37,779 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:37,779 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:37,992 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:37,992 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:37,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:37,993 INFO L82 PathProgramCache]: Analyzing trace with hash 643410279, now seen corresponding path program 1 times [2019-11-20 06:13:37,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:37,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [54938670] [2019-11-20 06:13:37,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:38,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 06:13:38,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:38,311 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:13:38,312 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:13:38,324 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:13:38,324 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:13:38,325 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 06:13:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:38,411 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:39,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [54938670] [2019-11-20 06:13:39,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:13:39,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-20 06:13:39,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986770624] [2019-11-20 06:13:39,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 06:13:39,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:39,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 06:13:39,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-20 06:13:39,352 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand 14 states. [2019-11-20 06:13:40,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:40,409 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2019-11-20 06:13:40,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 06:13:40,410 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-20 06:13:40,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:40,412 INFO L225 Difference]: With dead ends: 89 [2019-11-20 06:13:40,412 INFO L226 Difference]: Without dead ends: 89 [2019-11-20 06:13:40,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-11-20 06:13:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-20 06:13:40,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 81. [2019-11-20 06:13:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-20 06:13:40,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2019-11-20 06:13:40,423 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 16 [2019-11-20 06:13:40,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:40,424 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2019-11-20 06:13:40,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 06:13:40,424 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2019-11-20 06:13:40,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 06:13:40,425 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:40,425 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:40,627 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:40,628 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:40,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:40,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1530913959, now seen corresponding path program 1 times [2019-11-20 06:13:40,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:40,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1419778147] [2019-11-20 06:13:40,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:40,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 06:13:40,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:40,876 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:40,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1419778147] [2019-11-20 06:13:40,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:13:40,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 06:13:40,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284349966] [2019-11-20 06:13:40,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:13:40,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:40,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:13:40,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:13:40,915 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand 5 states. [2019-11-20 06:13:40,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:40,977 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2019-11-20 06:13:40,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:13:40,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 06:13:40,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:40,979 INFO L225 Difference]: With dead ends: 80 [2019-11-20 06:13:40,979 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 06:13:40,979 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:13:40,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 06:13:40,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-11-20 06:13:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 06:13:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2019-11-20 06:13:40,989 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 16 [2019-11-20 06:13:40,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:40,989 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2019-11-20 06:13:40,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:13:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2019-11-20 06:13:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 06:13:40,990 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:40,990 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:41,193 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:41,193 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:41,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1529128267, now seen corresponding path program 1 times [2019-11-20 06:13:41,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:41,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [676792171] [2019-11-20 06:13:41,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:41,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 06:13:41,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:41,440 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:41,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:41,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [676792171] [2019-11-20 06:13:41,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:13:41,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 06:13:41,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750460102] [2019-11-20 06:13:41,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:13:41,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:41,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:13:41,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:13:41,519 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 5 states. [2019-11-20 06:13:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:41,596 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2019-11-20 06:13:41,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:13:41,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 06:13:41,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:41,598 INFO L225 Difference]: With dead ends: 80 [2019-11-20 06:13:41,598 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 06:13:41,598 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:13:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 06:13:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-11-20 06:13:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 06:13:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2019-11-20 06:13:41,614 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 17 [2019-11-20 06:13:41,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:41,615 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2019-11-20 06:13:41,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:13:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2019-11-20 06:13:41,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 06:13:41,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:41,616 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:41,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:41,828 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:41,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:41,828 INFO L82 PathProgramCache]: Analyzing trace with hash 213682068, now seen corresponding path program 1 times [2019-11-20 06:13:41,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:41,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1718585141] [2019-11-20 06:13:41,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:42,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 06:13:42,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:42,046 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:42,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1718585141] [2019-11-20 06:13:42,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:13:42,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 06:13:42,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009963271] [2019-11-20 06:13:42,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 06:13:42,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:42,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 06:13:42,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:13:42,102 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 3 states. [2019-11-20 06:13:42,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:42,209 INFO L93 Difference]: Finished difference Result 115 states and 128 transitions. [2019-11-20 06:13:42,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 06:13:42,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 06:13:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:42,211 INFO L225 Difference]: With dead ends: 115 [2019-11-20 06:13:42,211 INFO L226 Difference]: Without dead ends: 110 [2019-11-20 06:13:42,211 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:13:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-20 06:13:42,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 76. [2019-11-20 06:13:42,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-20 06:13:42,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 83 transitions. [2019-11-20 06:13:42,218 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 83 transitions. Word has length 17 [2019-11-20 06:13:42,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:42,218 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 83 transitions. [2019-11-20 06:13:42,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 06:13:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2019-11-20 06:13:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 06:13:42,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:42,219 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:42,422 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:42,422 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:42,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:42,423 INFO L82 PathProgramCache]: Analyzing trace with hash 115925255, now seen corresponding path program 1 times [2019-11-20 06:13:42,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:42,423 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [539052223] [2019-11-20 06:13:42,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:42,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 06:13:42,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:42,662 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:13:42,663 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:13:42,667 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:13:42,667 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:13:42,668 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 06:13:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:42,810 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:43,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:13:44,028 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-20 06:13:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:44,379 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [539052223] [2019-11-20 06:13:44,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:13:44,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-20 06:13:44,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304785120] [2019-11-20 06:13:44,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 06:13:44,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 06:13:44,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-20 06:13:44,381 INFO L87 Difference]: Start difference. First operand 76 states and 83 transitions. Second operand 19 states. [2019-11-20 06:13:45,786 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-20 06:13:46,227 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-20 06:13:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:46,858 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2019-11-20 06:13:46,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 06:13:46,858 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-20 06:13:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:46,860 INFO L225 Difference]: With dead ends: 93 [2019-11-20 06:13:46,860 INFO L226 Difference]: Without dead ends: 93 [2019-11-20 06:13:46,860 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-20 06:13:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-20 06:13:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2019-11-20 06:13:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 06:13:46,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-20 06:13:46,871 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 22 [2019-11-20 06:13:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:46,871 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-20 06:13:46,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 06:13:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-20 06:13:46,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 06:13:46,872 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:46,873 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:47,075 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:47,076 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:47,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1492536893, now seen corresponding path program 1 times [2019-11-20 06:13:47,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:47,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1540032444] [2019-11-20 06:13:47,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:47,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 06:13:47,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:47,352 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:47,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:47,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1540032444] [2019-11-20 06:13:47,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:13:47,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-20 06:13:47,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148503576] [2019-11-20 06:13:47,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 06:13:47,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:47,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 06:13:47,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-20 06:13:47,453 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 12 states. [2019-11-20 06:13:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:47,775 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2019-11-20 06:13:47,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 06:13:47,775 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2019-11-20 06:13:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:47,776 INFO L225 Difference]: With dead ends: 94 [2019-11-20 06:13:47,776 INFO L226 Difference]: Without dead ends: 94 [2019-11-20 06:13:47,777 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-20 06:13:47,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-20 06:13:47,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 93. [2019-11-20 06:13:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-20 06:13:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 100 transitions. [2019-11-20 06:13:47,783 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 100 transitions. Word has length 30 [2019-11-20 06:13:47,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:47,784 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 100 transitions. [2019-11-20 06:13:47,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 06:13:47,784 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 100 transitions. [2019-11-20 06:13:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 06:13:47,785 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:47,785 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:47,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:47,988 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:47,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1093707847, now seen corresponding path program 2 times [2019-11-20 06:13:47,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:47,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [793953021] [2019-11-20 06:13:47,989 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:48,250 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 06:13:48,250 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:13:48,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-20 06:13:48,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:48,290 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:13:48,290 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:13:48,298 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:13:48,298 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:13:48,298 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 06:13:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:48,535 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:50,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [793953021] [2019-11-20 06:13:50,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:13:50,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-20 06:13:50,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834154593] [2019-11-20 06:13:50,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-20 06:13:50,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:50,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-20 06:13:50,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-20 06:13:50,756 INFO L87 Difference]: Start difference. First operand 93 states and 100 transitions. Second operand 26 states. [2019-11-20 06:13:52,888 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-20 06:13:53,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:53,696 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2019-11-20 06:13:53,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-20 06:13:53,697 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-20 06:13:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:53,698 INFO L225 Difference]: With dead ends: 104 [2019-11-20 06:13:53,698 INFO L226 Difference]: Without dead ends: 104 [2019-11-20 06:13:53,699 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-20 06:13:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-11-20 06:13:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2019-11-20 06:13:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-20 06:13:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2019-11-20 06:13:53,704 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 34 [2019-11-20 06:13:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:53,704 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2019-11-20 06:13:53,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-20 06:13:53,704 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2019-11-20 06:13:53,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 06:13:53,706 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:53,706 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:53,906 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:53,907 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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:53,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:53,907 INFO L82 PathProgramCache]: Analyzing trace with hash 648183772, now seen corresponding path program 2 times [2019-11-20 06:13:53,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:53,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1086529804] [2019-11-20 06:13:53,908 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:54,105 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-20 06:13:54,105 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:13:54,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 06:13:54,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-11-20 06:13:54,129 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-11-20 06:13:54,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1086529804] [2019-11-20 06:13:54,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:13:54,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 06:13:54,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691729436] [2019-11-20 06:13:54,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 06:13:54,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:54,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 06:13:54,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 06:13:54,193 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand 8 states. [2019-11-20 06:13:54,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:54,306 INFO L93 Difference]: Finished difference Result 139 states and 152 transitions. [2019-11-20 06:13:54,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:13:54,307 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2019-11-20 06:13:54,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:54,309 INFO L225 Difference]: With dead ends: 139 [2019-11-20 06:13:54,309 INFO L226 Difference]: Without dead ends: 139 [2019-11-20 06:13:54,309 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-20 06:13:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-11-20 06:13:54,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 107. [2019-11-20 06:13:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 06:13:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2019-11-20 06:13:54,315 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 45 [2019-11-20 06:13:54,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:54,316 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2019-11-20 06:13:54,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 06:13:54,316 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2019-11-20 06:13:54,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 06:13:54,322 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:54,323 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:54,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:54,526 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:54,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:54,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1010331769, now seen corresponding path program 3 times [2019-11-20 06:13:54,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:54,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [725528590] [2019-11-20 06:13:54,528 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:55,134 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-20 06:13:55,134 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:13:55,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 06:13:55,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:55,554 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:13:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:13:57,586 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [725528590] [2019-11-20 06:13:57,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:13:57,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 38 [2019-11-20 06:13:57,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947710106] [2019-11-20 06:13:57,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-20 06:13:57,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:13:57,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-20 06:13:57,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2019-11-20 06:13:57,589 INFO L87 Difference]: Start difference. First operand 107 states and 120 transitions. Second operand 38 states. [2019-11-20 06:13:59,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:13:59,044 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2019-11-20 06:13:59,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 06:13:59,045 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-20 06:13:59,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:13:59,046 INFO L225 Difference]: With dead ends: 104 [2019-11-20 06:13:59,046 INFO L226 Difference]: Without dead ends: 104 [2019-11-20 06:13:59,047 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2019-11-20 06:13:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-11-20 06:13:59,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-11-20 06:13:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-20 06:13:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 114 transitions. [2019-11-20 06:13:59,051 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 114 transitions. Word has length 46 [2019-11-20 06:13:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:13:59,052 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 114 transitions. [2019-11-20 06:13:59,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-20 06:13:59,052 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 114 transitions. [2019-11-20 06:13:59,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 06:13:59,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:13:59,054 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:13:59,258 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:59,259 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:13:59,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:13:59,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1199700182, now seen corresponding path program 1 times [2019-11-20 06:13:59,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:13:59,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [543071759] [2019-11-20 06:13:59,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:13:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:13:59,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 06:13:59,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:13:59,636 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:13:59,636 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:13:59,637 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:13:59,638 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:13:59,638 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 06:13:59,717 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:13:59,718 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-20 06:13:59,718 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:13:59,738 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-20 06:13:59,739 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 06:13:59,739 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-20 06:13:59,766 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 06:13:59,766 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:14:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-20 06:14:00,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [543071759] [2019-11-20 06:14:00,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 06:14:00,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-20 06:14:00,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108433216] [2019-11-20 06:14:00,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 06:14:00,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:14:00,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 06:14:00,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-20 06:14:00,030 INFO L87 Difference]: Start difference. First operand 104 states and 114 transitions. Second operand 8 states. [2019-11-20 06:14:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:14:10,830 INFO L93 Difference]: Finished difference Result 170 states and 194 transitions. [2019-11-20 06:14:10,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 06:14:10,831 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-20 06:14:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:14:10,832 INFO L225 Difference]: With dead ends: 170 [2019-11-20 06:14:10,833 INFO L226 Difference]: Without dead ends: 170 [2019-11-20 06:14:10,833 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-20 06:14:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-11-20 06:14:10,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 113. [2019-11-20 06:14:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-20 06:14:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2019-11-20 06:14:10,839 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 56 [2019-11-20 06:14:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:14:10,840 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2019-11-20 06:14:10,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 06:14:10,840 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2019-11-20 06:14:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 06:14:10,842 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:14:10,842 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:14:11,042 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:14:11,043 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:14:11,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:14:11,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1199700183, now seen corresponding path program 1 times [2019-11-20 06:14:11,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:14:11,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1619673039] [2019-11-20 06:14:11,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:14:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:14:11,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-20 06:14:11,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:14:11,550 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:14:11,551 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:11,562 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:11,566 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:14:11,566 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:11,575 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:11,575 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:14:11,575 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 06:14:13,767 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 06:14:13,768 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-20 06:14:13,769 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:13,781 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:13,790 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:13,790 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-20 06:14:13,791 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:13,801 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:13,802 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:14:13,802 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-20 06:14:13,839 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 06:14:13,840 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:14:14,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 06:14:16,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:14:16,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:14:16,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 06:14:16,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 06:14:16,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:14:16,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 06:14:16,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 06:14:26,875 WARN L191 SmtUtils]: Spent 4.68 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-20 06:14:26,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:14:40,415 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_250|], 2=[|v_#length_208|]} [2019-11-20 06:14:40,422 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 06:14:40,422 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:40,429 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:40,431 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 06:14:40,431 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:40,437 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:40,438 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:14:40,438 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-20 06:14:41,072 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-20 06:14:41,084 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 06:14:41,085 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:41,100 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:41,102 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 06:14:41,102 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 06:14:41,115 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:14:41,116 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 06:14:41,116 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-20 06:14:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 06:14:41,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1619673039] [2019-11-20 06:14:41,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:14:41,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-20 06:14:41,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717435150] [2019-11-20 06:14:41,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 06:14:41,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:14:41,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 06:14:41,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=400, Unknown=10, NotChecked=0, Total=462 [2019-11-20 06:14:41,363 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 22 states. [2019-11-20 06:15:07,950 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)) (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|) (forall ((v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_unsafe_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse2 (_ bv4 32))) (.cse1 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse2))) (or (bvsle .cse0 (select |c_#length| v_alloc_unsafe_17_~array.base_BEFORE_CALL_4)) (exists ((v_prenex_11 (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_11 v_ldv_malloc_~size_52) v_alloc_unsafe_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1)))) (not (bvsle .cse1 .cse0)) (not (bvsle (_ bv0 32) .cse1)))))) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1)))) is different from false [2019-11-20 06:15:26,417 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 25 [2019-11-20 06:15:53,494 WARN L191 SmtUtils]: Spent 12.24 s on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2019-11-20 06:16:33,398 WARN L191 SmtUtils]: Spent 6.34 s on a formula simplification. DAG size of input: 57 DAG size of output: 28 [2019-11-20 06:17:00,427 WARN L191 SmtUtils]: Spent 8.49 s on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2019-11-20 06:17:22,573 WARN L838 $PredicateComparison]: unable to prove that (and (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|))) (= |c_#valid| |c_old(#valid)|) (forall ((v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_unsafe_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse2 (_ bv4 32))) (.cse1 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse2))) (or (bvsle .cse0 (select |c_#length| v_alloc_unsafe_17_~array.base_BEFORE_CALL_4)) (exists ((v_prenex_11 (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_11 v_ldv_malloc_~size_52) v_alloc_unsafe_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1)))) (not (bvsle .cse1 .cse0)) (not (bvsle (_ bv0 32) .cse1)))))) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1))) (= |c_old(#length)| |c_#length|)) is different from false [2019-11-20 06:18:10,119 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-11-20 06:18:37,096 WARN L191 SmtUtils]: Spent 12.35 s on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2019-11-20 06:18:57,268 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 06:19:23,080 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 43 DAG size of output: 12 [2019-11-20 06:19:36,995 WARN L191 SmtUtils]: Spent 8.21 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-11-20 06:19:49,026 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (bvmul c_alloc_unsafe_17_~i~0 (_ bv4 32)))) (let ((.cse0 (bvadd c_alloc_unsafe_17_~array.offset .cse8 (_ bv4 32))) (.cse7 (bvadd c_alloc_unsafe_17_~array.offset .cse8))) (let ((.cse2 (bvsle (_ bv0 32) .cse7)) (.cse3 (forall ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1))))) (.cse1 (bvsle .cse7 .cse0))) (and (= |c_#valid| |c_old(#valid)|) (bvsle .cse0 (select |c_#length| c_alloc_unsafe_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1))) .cse1 (or .cse2 .cse3) (= (_ bv1 1) (select |c_#valid| |c_alloc_unsafe_17_#in~array.base|)) (forall ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (or (bvsle (bvadd c_alloc_unsafe_17_~array.offset (bvmul c_alloc_unsafe_17_~i~0 (_ bv4 32)) (_ bv4 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_44| v_ldv_malloc_~size_52) c_alloc_unsafe_17_~array.base)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1))))) (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|))) .cse2 (forall ((v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_unsafe_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse6 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse4 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse6 (_ bv4 32))) (.cse5 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse6))) (or (bvsle .cse4 (select |c_#length| v_alloc_unsafe_17_~array.base_BEFORE_CALL_4)) (exists ((v_prenex_11 (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_11 v_ldv_malloc_~size_52) v_alloc_unsafe_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1)))) (not (bvsle .cse5 .cse4)) (not (bvsle (_ bv0 32) .cse5)))))) (or .cse3 .cse1) (= (bvadd (select |c_#length| |c_alloc_unsafe_17_#in~array.base|) (_ bv4294967256 32)) (_ bv0 32)) (= |c_old(#length)| |c_#length|) (= (_ bv0 32) |c_alloc_unsafe_17_#in~array.offset|))))) is different from false [2019-11-20 06:19:51,141 WARN L838 $PredicateComparison]: unable to prove that (and (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|))) (= |c_#valid| |c_old(#valid)|) (forall ((v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_unsafe_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse2 (_ bv4 32))) (.cse1 (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 .cse2))) (or (bvsle .cse0 (select |c_#length| v_alloc_unsafe_17_~array.base_BEFORE_CALL_4)) (exists ((v_prenex_11 (_ BitVec 32)) (v_ldv_malloc_~size_52 (_ BitVec 32))) (and (not (bvsle (bvadd v_alloc_unsafe_17_~array.offset_BEFORE_CALL_2 (bvmul v_alloc_unsafe_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_11 v_ldv_malloc_~size_52) v_alloc_unsafe_17_~array.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| v_prenex_11) (_ bv0 1)))) (not (bvsle .cse1 .cse0)) (not (bvsle (_ bv0 32) .cse1)))))) (exists ((|v_ldv_malloc_#t~malloc12.base_44| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_44|) (_ bv0 1))) (= (bvadd (select |c_#length| |c_alloc_unsafe_17_#in~array.base|) (_ bv4294967256 32)) (_ bv0 32)) (= |c_old(#length)| |c_#length|) (= (_ bv0 32) |c_alloc_unsafe_17_#in~array.offset|) (= (_ bv1 1) (select |c_#valid| |c_alloc_unsafe_17_#in~array.base|))) is different from false [2019-11-20 06:20:05,831 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2019-11-20 06:20:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:20:15,862 INFO L93 Difference]: Finished difference Result 308 states and 360 transitions. [2019-11-20 06:20:15,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-20 06:20:15,863 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-20 06:20:15,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:20:15,865 INFO L225 Difference]: With dead ends: 308 [2019-11-20 06:20:15,865 INFO L226 Difference]: Without dead ends: 308 [2019-11-20 06:20:15,866 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 90 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 226.6s TimeCoverageRelationStatistics Valid=212, Invalid=1234, Unknown=52, NotChecked=308, Total=1806 [2019-11-20 06:20:15,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-11-20 06:20:15,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 144. [2019-11-20 06:20:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-20 06:20:15,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 175 transitions. [2019-11-20 06:20:15,875 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 175 transitions. Word has length 56 [2019-11-20 06:20:15,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:20:15,875 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 175 transitions. [2019-11-20 06:20:15,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 06:20:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 175 transitions. [2019-11-20 06:20:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 06:20:15,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:20:15,876 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:20:16,083 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:20:16,083 INFO L410 AbstractCegarLoop]: === Iteration 13 === [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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:20:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:20:16,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1860597250, now seen corresponding path program 1 times [2019-11-20 06:20:16,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:20:16,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [64757221] [2019-11-20 06:20:16,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:20:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:20:16,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 06:20:16,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:20:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-20 06:20:16,310 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:20:16,338 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-20 06:20:16,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [64757221] [2019-11-20 06:20:16,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:20:16,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 06:20:16,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236492401] [2019-11-20 06:20:16,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 06:20:16,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:20:16,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 06:20:16,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 06:20:16,339 INFO L87 Difference]: Start difference. First operand 144 states and 175 transitions. Second operand 5 states. [2019-11-20 06:20:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:20:16,395 INFO L93 Difference]: Finished difference Result 171 states and 205 transitions. [2019-11-20 06:20:16,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 06:20:16,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-20 06:20:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:20:16,397 INFO L225 Difference]: With dead ends: 171 [2019-11-20 06:20:16,397 INFO L226 Difference]: Without dead ends: 171 [2019-11-20 06:20:16,398 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:20:16,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-20 06:20:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 146. [2019-11-20 06:20:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-20 06:20:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2019-11-20 06:20:16,407 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 58 [2019-11-20 06:20:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:20:16,407 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2019-11-20 06:20:16,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 06:20:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2019-11-20 06:20:16,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-20 06:20:16,410 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:20:16,410 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:20:16,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:20:16,613 INFO L410 AbstractCegarLoop]: === Iteration 14 === [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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:20:16,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:20:16,613 INFO L82 PathProgramCache]: Analyzing trace with hash -691559711, now seen corresponding path program 1 times [2019-11-20 06:20:16,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:20:16,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [726834175] [2019-11-20 06:20:16,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:20:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:20:16,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 06:20:16,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:20:16,961 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-20 06:20:16,961 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:20:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-20 06:20:17,001 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [726834175] [2019-11-20 06:20:17,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:20:17,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 06:20:17,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584323677] [2019-11-20 06:20:17,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 06:20:17,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 06:20:17,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 06:20:17,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 06:20:17,002 INFO L87 Difference]: Start difference. First operand 146 states and 175 transitions. Second operand 6 states. [2019-11-20 06:20:17,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:20:17,079 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2019-11-20 06:20:17,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 06:20:17,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-20 06:20:17,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:20:17,081 INFO L225 Difference]: With dead ends: 151 [2019-11-20 06:20:17,081 INFO L226 Difference]: Without dead ends: 151 [2019-11-20 06:20:17,082 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:20:17,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-20 06:20:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2019-11-20 06:20:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-20 06:20:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 177 transitions. [2019-11-20 06:20:17,092 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 177 transitions. Word has length 58 [2019-11-20 06:20:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:20:17,092 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 177 transitions. [2019-11-20 06:20:17,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 06:20:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 177 transitions. [2019-11-20 06:20:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-20 06:20:17,094 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:20:17,094 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:20:17,298 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:20:17,299 INFO L410 AbstractCegarLoop]: === Iteration 15 === [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, alloc_unsafe_17Err3REQUIRES_VIOLATION, alloc_unsafe_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err2REQUIRES_VIOLATION, alloc_unsafe_17Err0REQUIRES_VIOLATION, alloc_unsafe_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_unsafe_17Err1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 06:20:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:20:17,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1753615753, now seen corresponding path program 1 times [2019-11-20 06:20:17,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 06:20:17,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [411697483] [2019-11-20 06:20:17,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592619c1-3c35-45b2-b056-780332e228d2/bin/uautomizer/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:20:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:20:17,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 06:20:17,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:20:17,617 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 06:20:17,617 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:20:17,619 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:20:17,619 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:20:17,619 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 06:20:17,682 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-20 06:20:17,682 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 06:20:17,970 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 06:20:17,970 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 06:20:17,975 INFO L168 Benchmark]: Toolchain (without parser) took 403810.58 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 369.1 MB). Free memory was 943.4 MB in the beginning and 980.8 MB in the end (delta: -37.4 MB). Peak memory consumption was 331.7 MB. Max. memory is 11.5 GB. [2019-11-20 06:20:17,975 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:20:17,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 06:20:17,976 INFO L168 Benchmark]: Boogie Preprocessor took 89.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 06:20:17,976 INFO L168 Benchmark]: RCFGBuilder took 1811.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. [2019-11-20 06:20:17,976 INFO L168 Benchmark]: TraceAbstraction took 401132.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.7 MB). Free memory was 1.0 GB in the beginning and 980.8 MB in the end (delta: 31.8 MB). Peak memory consumption was 220.5 MB. Max. memory is 11.5 GB. [2019-11-20 06:20:17,978 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 771.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1811.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 401132.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.7 MB). Free memory was 1.0 GB in the beginning and 980.8 MB in the end (delta: 31.8 MB). Peak memory consumption was 220.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...