./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 1e7b1c8d88255aaa07a4a2fabadf999511fb9c76 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 1e7b1c8d88255aaa07a4a2fabadf999511fb9c76 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 20:04:22,402 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 20:04:22,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 20:04:22,412 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 20:04:22,412 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 20:04:22,413 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 20:04:22,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 20:04:22,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 20:04:22,416 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 20:04:22,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 20:04:22,418 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 20:04:22,418 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 20:04:22,418 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 20:04:22,419 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 20:04:22,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 20:04:22,420 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 20:04:22,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 20:04:22,421 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 20:04:22,422 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 20:04:22,423 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 20:04:22,424 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 20:04:22,424 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 20:04:22,425 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 20:04:22,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 20:04:22,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 20:04:22,426 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 20:04:22,427 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 20:04:22,427 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 20:04:22,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 20:04:22,428 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 20:04:22,428 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 20:04:22,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 20:04:22,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 20:04:22,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 20:04:22,429 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 20:04:22,430 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 20:04:22,430 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-01 20:04:22,437 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 20:04:22,437 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 20:04:22,438 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 20:04:22,438 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 20:04:22,438 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 20:04:22,438 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 20:04:22,438 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 20:04:22,439 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 20:04:22,439 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 20:04:22,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 20:04:22,440 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 20:04:22,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 -> 1e7b1c8d88255aaa07a4a2fabadf999511fb9c76 [2018-12-01 20:04:22,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 20:04:22,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 20:04:22,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 20:04:22,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 20:04:22,471 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 20:04:22,472 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-12-01 20:04:22,512 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/eb32f0d0c/8cec0d5f71a341339f1510a53416e443/FLAG58cf966bf [2018-12-01 20:04:22,901 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 20:04:22,901 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-12-01 20:04:22,911 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/eb32f0d0c/8cec0d5f71a341339f1510a53416e443/FLAG58cf966bf [2018-12-01 20:04:22,922 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/eb32f0d0c/8cec0d5f71a341339f1510a53416e443 [2018-12-01 20:04:22,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 20:04:22,924 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-01 20:04:22,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 20:04:22,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 20:04:22,927 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 20:04:22,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:04:22" (1/1) ... [2018-12-01 20:04:22,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126510b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:22, skipping insertion in model container [2018-12-01 20:04:22,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:04:22" (1/1) ... [2018-12-01 20:04:22,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 20:04:22,962 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 20:04:23,184 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:04:23,196 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 20:04:23,230 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:04:23,261 INFO L195 MainTranslator]: Completed translation [2018-12-01 20:04:23,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23 WrapperNode [2018-12-01 20:04:23,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 20:04:23,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 20:04:23,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 20:04:23,262 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 20:04:23,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... [2018-12-01 20:04:23,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... [2018-12-01 20:04:23,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... [2018-12-01 20:04:23,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... [2018-12-01 20:04:23,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... [2018-12-01 20:04:23,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... [2018-12-01 20:04:23,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... [2018-12-01 20:04:23,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 20:04:23,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 20:04:23,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 20:04:23,306 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 20:04:23,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-12-01 20:04:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-12-01 20:04:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-12-01 20:04:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-12-01 20:04:23,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-01 20:04:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-01 20:04:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-01 20:04:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-01 20:04:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-01 20:04:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-01 20:04:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-01 20:04:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-01 20:04:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-12-01 20:04:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2018-12-01 20:04:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-12-01 20:04:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2018-12-01 20:04:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2018-12-01 20:04:23,580 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-01 20:04:23,709 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-01 20:04:23,839 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 20:04:23,839 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-01 20:04:23,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:04:23 BoogieIcfgContainer [2018-12-01 20:04:23,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 20:04:23,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 20:04:23,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 20:04:23,842 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 20:04:23,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 08:04:22" (1/3) ... [2018-12-01 20:04:23,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3792e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 08:04:23, skipping insertion in model container [2018-12-01 20:04:23,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:23" (2/3) ... [2018-12-01 20:04:23,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3792e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 08:04:23, skipping insertion in model container [2018-12-01 20:04:23,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:04:23" (3/3) ... [2018-12-01 20:04:23,845 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-12-01 20:04:23,851 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 20:04:23,856 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 73 error locations. [2018-12-01 20:04:23,865 INFO L257 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2018-12-01 20:04:23,881 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 20:04:23,881 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 20:04:23,881 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 20:04:23,881 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 20:04:23,881 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 20:04:23,881 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 20:04:23,881 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 20:04:23,881 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 20:04:23,882 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 20:04:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2018-12-01 20:04:23,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 20:04:23,900 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:23,901 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:23,903 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:23,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:23,908 INFO L82 PathProgramCache]: Analyzing trace with hash -799536389, now seen corresponding path program 1 times [2018-12-01 20:04:23,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:23,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:23,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:23,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:23,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:24,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:24,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 20:04:24,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 20:04:24,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 20:04:24,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:24,076 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 5 states. [2018-12-01 20:04:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:24,141 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2018-12-01 20:04:24,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 20:04:24,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-12-01 20:04:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:24,148 INFO L225 Difference]: With dead ends: 63 [2018-12-01 20:04:24,148 INFO L226 Difference]: Without dead ends: 60 [2018-12-01 20:04:24,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-01 20:04:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 40. [2018-12-01 20:04:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-01 20:04:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-12-01 20:04:24,174 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 17 [2018-12-01 20:04:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:24,175 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-12-01 20:04:24,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 20:04:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-12-01 20:04:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 20:04:24,176 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:24,176 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:24,176 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:24,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:24,176 INFO L82 PathProgramCache]: Analyzing trace with hash 943273946, now seen corresponding path program 1 times [2018-12-01 20:04:24,176 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:24,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:24,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:24,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:24,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:24,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 20:04:24,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 20:04:24,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 20:04:24,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 20:04:24,209 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 3 states. [2018-12-01 20:04:24,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:24,244 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-12-01 20:04:24,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 20:04:24,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-01 20:04:24,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:24,245 INFO L225 Difference]: With dead ends: 60 [2018-12-01 20:04:24,245 INFO L226 Difference]: Without dead ends: 57 [2018-12-01 20:04:24,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 20:04:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-01 20:04:24,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2018-12-01 20:04:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-01 20:04:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-12-01 20:04:24,250 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 17 [2018-12-01 20:04:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:24,250 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-12-01 20:04:24,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 20:04:24,250 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-12-01 20:04:24,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 20:04:24,251 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:24,251 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:24,251 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:24,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:24,251 INFO L82 PathProgramCache]: Analyzing trace with hash 983879530, now seen corresponding path program 1 times [2018-12-01 20:04:24,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:24,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:24,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:24,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:24,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:24,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 20:04:24,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 20:04:24,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 20:04:24,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:24,289 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 5 states. [2018-12-01 20:04:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:24,332 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2018-12-01 20:04:24,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 20:04:24,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-12-01 20:04:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:24,333 INFO L225 Difference]: With dead ends: 58 [2018-12-01 20:04:24,333 INFO L226 Difference]: Without dead ends: 58 [2018-12-01 20:04:24,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-01 20:04:24,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-12-01 20:04:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-01 20:04:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2018-12-01 20:04:24,340 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 18 [2018-12-01 20:04:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:24,340 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2018-12-01 20:04:24,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 20:04:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2018-12-01 20:04:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 20:04:24,341 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:24,341 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:24,342 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:24,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:24,342 INFO L82 PathProgramCache]: Analyzing trace with hash 983879531, now seen corresponding path program 1 times [2018-12-01 20:04:24,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:24,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:24,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:24,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:24,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:24,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 20:04:24,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 20:04:24,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 20:04:24,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 20:04:24,378 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 4 states. [2018-12-01 20:04:24,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:24,396 INFO L93 Difference]: Finished difference Result 81 states and 103 transitions. [2018-12-01 20:04:24,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 20:04:24,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-12-01 20:04:24,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:24,397 INFO L225 Difference]: With dead ends: 81 [2018-12-01 20:04:24,397 INFO L226 Difference]: Without dead ends: 81 [2018-12-01 20:04:24,397 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 20:04:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-12-01 20:04:24,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2018-12-01 20:04:24,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-12-01 20:04:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2018-12-01 20:04:24,401 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 18 [2018-12-01 20:04:24,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:24,401 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2018-12-01 20:04:24,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 20:04:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2018-12-01 20:04:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 20:04:24,402 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:24,402 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:24,402 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:24,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:24,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1007501068, now seen corresponding path program 1 times [2018-12-01 20:04:24,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:24,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:24,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:24,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:24,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 20:04:24,466 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 20:04:24,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:24,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:24,524 INFO L478 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 [2018-12-01 20:04:24,526 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:24,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:24,528 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-01 20:04:24,561 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:24,562 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:24,563 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-12-01 20:04:24,563 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:24,568 INFO L267 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. [2018-12-01 20:04:24,568 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-12-01 20:04:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:24,595 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 20:04:24,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2018-12-01 20:04:24,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 20:04:24,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 20:04:24,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-01 20:04:24,596 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 9 states. [2018-12-01 20:04:24,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:24,860 INFO L93 Difference]: Finished difference Result 136 states and 167 transitions. [2018-12-01 20:04:24,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-01 20:04:24,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-01 20:04:24,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:24,863 INFO L225 Difference]: With dead ends: 136 [2018-12-01 20:04:24,863 INFO L226 Difference]: Without dead ends: 136 [2018-12-01 20:04:24,863 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-12-01 20:04:24,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-12-01 20:04:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 62. [2018-12-01 20:04:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-01 20:04:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 81 transitions. [2018-12-01 20:04:24,870 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 81 transitions. Word has length 23 [2018-12-01 20:04:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:24,870 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 81 transitions. [2018-12-01 20:04:24,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 20:04:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2018-12-01 20:04:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 20:04:24,871 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:24,871 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:24,871 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:24,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:24,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1007501069, now seen corresponding path program 1 times [2018-12-01 20:04:24,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:24,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:24,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:24,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:24,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:24,985 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 20:04:24,985 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 20:04:24,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:25,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:25,010 INFO L478 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 [2018-12-01 20:04:25,011 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:25,016 INFO L478 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 [2018-12-01 20:04:25,017 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:25,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:25,025 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-12-01 20:04:25,078 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:25,078 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:25,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-01 20:04:25,079 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:25,088 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-01 20:04:25,088 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:25,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:25,093 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-01 20:04:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:25,108 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 20:04:25,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-12-01 20:04:25,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 20:04:25,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 20:04:25,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-01 20:04:25,109 INFO L87 Difference]: Start difference. First operand 62 states and 81 transitions. Second operand 11 states. [2018-12-01 20:04:26,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:26,100 INFO L93 Difference]: Finished difference Result 148 states and 181 transitions. [2018-12-01 20:04:26,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-01 20:04:26,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2018-12-01 20:04:26,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:26,101 INFO L225 Difference]: With dead ends: 148 [2018-12-01 20:04:26,101 INFO L226 Difference]: Without dead ends: 148 [2018-12-01 20:04:26,101 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-12-01 20:04:26,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-01 20:04:26,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 66. [2018-12-01 20:04:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-01 20:04:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2018-12-01 20:04:26,105 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 23 [2018-12-01 20:04:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:26,105 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2018-12-01 20:04:26,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 20:04:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2018-12-01 20:04:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 20:04:26,106 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:26,106 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:26,107 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:26,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:26,107 INFO L82 PathProgramCache]: Analyzing trace with hash 501942443, now seen corresponding path program 1 times [2018-12-01 20:04:26,107 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:26,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:26,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:26,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 20:04:26,130 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 20:04:26,130 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 20:04:26,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:26,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:26,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 20:04:26,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2018-12-01 20:04:26,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 20:04:26,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 20:04:26,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:26,180 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand 5 states. [2018-12-01 20:04:26,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:26,188 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-12-01 20:04:26,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 20:04:26,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-12-01 20:04:26,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:26,189 INFO L225 Difference]: With dead ends: 46 [2018-12-01 20:04:26,189 INFO L226 Difference]: Without dead ends: 44 [2018-12-01 20:04:26,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:26,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-01 20:04:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-01 20:04:26,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-01 20:04:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-12-01 20:04:26,192 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2018-12-01 20:04:26,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:26,192 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-12-01 20:04:26,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 20:04:26,192 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-12-01 20:04:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 20:04:26,193 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:26,193 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:26,193 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:26,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1840843320, now seen corresponding path program 1 times [2018-12-01 20:04:26,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:26,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:26,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:26,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:26,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 20:04:26,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:26,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 20:04:26,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 20:04:26,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 20:04:26,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:26,217 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 5 states. [2018-12-01 20:04:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:26,238 INFO L93 Difference]: Finished difference Result 70 states and 85 transitions. [2018-12-01 20:04:26,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 20:04:26,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-01 20:04:26,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:26,238 INFO L225 Difference]: With dead ends: 70 [2018-12-01 20:04:26,238 INFO L226 Difference]: Without dead ends: 70 [2018-12-01 20:04:26,239 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-01 20:04:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-01 20:04:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 48. [2018-12-01 20:04:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-01 20:04:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-12-01 20:04:26,241 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 25 [2018-12-01 20:04:26,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:26,241 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2018-12-01 20:04:26,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 20:04:26,241 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-12-01 20:04:26,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 20:04:26,242 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:26,242 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:26,242 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:26,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:26,242 INFO L82 PathProgramCache]: Analyzing trace with hash -711313641, now seen corresponding path program 1 times [2018-12-01 20:04:26,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:26,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:26,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:26,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-01 20:04:26,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:26,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 20:04:26,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 20:04:26,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 20:04:26,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 20:04:26,257 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 4 states. [2018-12-01 20:04:26,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:26,282 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-12-01 20:04:26,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 20:04:26,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-01 20:04:26,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:26,283 INFO L225 Difference]: With dead ends: 53 [2018-12-01 20:04:26,283 INFO L226 Difference]: Without dead ends: 53 [2018-12-01 20:04:26,283 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:26,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-01 20:04:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-12-01 20:04:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-01 20:04:26,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2018-12-01 20:04:26,285 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 25 [2018-12-01 20:04:26,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:26,285 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2018-12-01 20:04:26,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 20:04:26,285 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2018-12-01 20:04:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 20:04:26,286 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:26,286 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:26,286 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-12-01 20:04:26,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:26,287 INFO L82 PathProgramCache]: Analyzing trace with hash -672645855, now seen corresponding path program 1 times [2018-12-01 20:04:26,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:04:26,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:04:26,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:26,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:04:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:04:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:04:26,313 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 20:04:26,320 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-01 20:04:26,324 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 42 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 20:04:26,324 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 41 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 20:04:26,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 08:04:26 BoogieIcfgContainer [2018-12-01 20:04:26,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 20:04:26,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 20:04:26,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 20:04:26,331 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 20:04:26,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:04:23" (3/4) ... [2018-12-01 20:04:26,333 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 20:04:26,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 20:04:26,334 INFO L168 Benchmark]: Toolchain (without parser) took 3410.07 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 222.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -111.4 MB). Peak memory consumption was 111.4 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:26,335 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:04:26,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:26,335 INFO L168 Benchmark]: Boogie Preprocessor took 44.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:04:26,335 INFO L168 Benchmark]: RCFGBuilder took 532.97 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: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:26,336 INFO L168 Benchmark]: TraceAbstraction took 2490.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -63.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:26,336 INFO L168 Benchmark]: Witness Printer took 2.97 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:04:26,338 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 532.97 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: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2490.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -63.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 42 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 41 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1458]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1458. Possible FailurePath: [L1135] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={44:0}] [L1459] CALL entry_point() VAL [ldv_global_msg_list={44:0}] [L1439] int len = 10; VAL [ldv_global_msg_list={44:0}, len=10] [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={44:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); VAL [\old(size)=40, \result={45:0}, ldv_global_msg_list={44:0}, malloc(size)={45:0}, size=40] [L1440] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={44:0}, ldv_malloc(sizeof(struct A18*)*len)={45:0}, len=10] [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; VAL [array={45:0}, i=0, ldv_global_msg_list={44:0}, len=10] [L1444] COND FALSE !(!array) VAL [array={45:0}, i=0, ldv_global_msg_list={44:0}, len=10] [L1445] COND TRUE i=0) VAL [array={45:0}, i=0, j=-1, ldv_global_msg_list={44:0}, len=10, p={0:0}] [L1459] RET entry_point() VAL [ldv_global_msg_list={44:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 327 locations, 73 error locations. UNSAFE Result, 2.4s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 428 SDtfs, 406 SDslu, 1055 SDs, 0 SdLazy, 864 SolverSat, 76 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 73 SyntacticMatches, 11 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 240 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 246 ConstructedInterpolants, 7 QuantifiedInterpolants, 19882 SizeOfPredicates, 10 NumberOfNonLiveVariables, 402 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 20/32 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-01 20:04:27,703 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 20:04:27,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 20:04:27,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 20:04:27,710 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 20:04:27,710 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 20:04:27,711 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 20:04:27,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 20:04:27,712 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 20:04:27,713 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 20:04:27,713 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 20:04:27,713 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 20:04:27,714 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 20:04:27,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 20:04:27,715 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 20:04:27,715 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 20:04:27,716 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 20:04:27,717 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 20:04:27,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 20:04:27,719 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 20:04:27,719 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 20:04:27,720 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 20:04:27,722 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 20:04:27,722 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 20:04:27,722 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 20:04:27,723 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 20:04:27,723 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 20:04:27,724 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 20:04:27,724 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 20:04:27,725 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 20:04:27,725 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 20:04:27,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 20:04:27,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 20:04:27,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 20:04:27,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 20:04:27,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 20:04:27,727 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-12-01 20:04:27,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 20:04:27,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 20:04:27,736 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 20:04:27,736 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 20:04:27,736 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 20:04:27,736 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 20:04:27,736 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 20:04:27,737 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 20:04:27,737 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 20:04:27,737 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 20:04:27,737 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 20:04:27,737 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 20:04:27,737 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 20:04:27,737 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 20:04:27,737 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 20:04:27,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 20:04:27,738 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 20:04:27,739 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 20:04:27,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 20:04:27,739 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 20:04:27,739 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 20:04:27,739 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-01 20:04:27,739 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 20:04:27,739 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-01 20:04:27,739 INFO L133 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/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 -> 1e7b1c8d88255aaa07a4a2fabadf999511fb9c76 [2018-12-01 20:04:27,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 20:04:27,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 20:04:27,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 20:04:27,771 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 20:04:27,772 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 20:04:27,772 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-12-01 20:04:27,817 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/51a6bcc09/c95bd234daea4a919892ff54dc39b9ad/FLAG1561b4d97 [2018-12-01 20:04:28,312 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 20:04:28,312 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-12-01 20:04:28,320 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/51a6bcc09/c95bd234daea4a919892ff54dc39b9ad/FLAG1561b4d97 [2018-12-01 20:04:28,328 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/data/51a6bcc09/c95bd234daea4a919892ff54dc39b9ad [2018-12-01 20:04:28,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 20:04:28,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-01 20:04:28,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 20:04:28,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 20:04:28,333 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 20:04:28,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738a89ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28, skipping insertion in model container [2018-12-01 20:04:28,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 20:04:28,362 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 20:04:28,556 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:04:28,601 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 20:04:28,636 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:04:28,669 INFO L195 MainTranslator]: Completed translation [2018-12-01 20:04:28,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28 WrapperNode [2018-12-01 20:04:28,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 20:04:28,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 20:04:28,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 20:04:28,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 20:04:28,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... [2018-12-01 20:04:28,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 20:04:28,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 20:04:28,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 20:04:28,716 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 20:04:28,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-12-01 20:04:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-12-01 20:04:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-12-01 20:04:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-12-01 20:04:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-12-01 20:04:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-01 20:04:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-01 20:04:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-01 20:04:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-01 20:04:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-01 20:04:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-01 20:04:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-01 20:04:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-01 20:04:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 20:04:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-12-01 20:04:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-01 20:04:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2018-12-01 20:04:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2018-12-01 20:04:29,020 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-01 20:04:29,257 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-01 20:04:29,529 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 20:04:29,530 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-01 20:04:29,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:04:29 BoogieIcfgContainer [2018-12-01 20:04:29,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 20:04:29,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 20:04:29,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 20:04:29,532 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 20:04:29,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 08:04:28" (1/3) ... [2018-12-01 20:04:29,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32057ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 08:04:29, skipping insertion in model container [2018-12-01 20:04:29,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:04:28" (2/3) ... [2018-12-01 20:04:29,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32057ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 08:04:29, skipping insertion in model container [2018-12-01 20:04:29,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:04:29" (3/3) ... [2018-12-01 20:04:29,534 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-12-01 20:04:29,540 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 20:04:29,545 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 73 error locations. [2018-12-01 20:04:29,554 INFO L257 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2018-12-01 20:04:29,568 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 20:04:29,568 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 20:04:29,568 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 20:04:29,568 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 20:04:29,568 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 20:04:29,568 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 20:04:29,568 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 20:04:29,568 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 20:04:29,568 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 20:04:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2018-12-01 20:04:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 20:04:29,583 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:29,584 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:29,585 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:29,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:29,588 INFO L82 PathProgramCache]: Analyzing trace with hash 480914236, now seen corresponding path program 1 times [2018-12-01 20:04:29,591 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:29,591 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:29,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:29,643 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:29,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:29,676 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 20:04:29,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:29,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 20:04:29,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 20:04:29,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 20:04:29,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:29,691 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 5 states. [2018-12-01 20:04:29,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:29,799 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2018-12-01 20:04:29,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 20:04:29,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-12-01 20:04:29,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:29,807 INFO L225 Difference]: With dead ends: 63 [2018-12-01 20:04:29,807 INFO L226 Difference]: Without dead ends: 60 [2018-12-01 20:04:29,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-01 20:04:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 40. [2018-12-01 20:04:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-01 20:04:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-12-01 20:04:29,837 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 17 [2018-12-01 20:04:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:29,838 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-12-01 20:04:29,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 20:04:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-12-01 20:04:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 20:04:29,839 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:29,839 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:29,840 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:29,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:29,840 INFO L82 PathProgramCache]: Analyzing trace with hash -2071242725, now seen corresponding path program 1 times [2018-12-01 20:04:29,840 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:29,841 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:29,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:29,875 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:29,883 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 20:04:29,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:29,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 20:04:29,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 20:04:29,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 20:04:29,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 20:04:29,886 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 3 states. [2018-12-01 20:04:29,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:29,964 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-12-01 20:04:29,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 20:04:29,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-01 20:04:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:29,966 INFO L225 Difference]: With dead ends: 60 [2018-12-01 20:04:29,966 INFO L226 Difference]: Without dead ends: 57 [2018-12-01 20:04:29,966 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 20:04:29,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-01 20:04:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2018-12-01 20:04:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-01 20:04:29,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2018-12-01 20:04:29,970 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 17 [2018-12-01 20:04:29,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:29,970 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2018-12-01 20:04:29,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 20:04:29,971 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2018-12-01 20:04:29,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 20:04:29,971 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:29,971 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:29,972 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:29,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:29,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2023143209, now seen corresponding path program 1 times [2018-12-01 20:04:29,972 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:29,972 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:29,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:30,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:30,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:30,030 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 20:04:30,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:30,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 20:04:30,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 20:04:30,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 20:04:30,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 20:04:30,032 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 4 states. [2018-12-01 20:04:30,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:30,071 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2018-12-01 20:04:30,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 20:04:30,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-12-01 20:04:30,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:30,073 INFO L225 Difference]: With dead ends: 76 [2018-12-01 20:04:30,073 INFO L226 Difference]: Without dead ends: 76 [2018-12-01 20:04:30,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-01 20:04:30,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-12-01 20:04:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 50. [2018-12-01 20:04:30,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-01 20:04:30,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-01 20:04:30,077 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-12-01 20:04:30,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:30,077 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-01 20:04:30,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 20:04:30,077 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-01 20:04:30,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 20:04:30,078 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:30,078 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:30,078 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:30,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:30,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1195642291, now seen corresponding path program 1 times [2018-12-01 20:04:30,079 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:30,079 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:30,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:30,137 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:30,155 INFO L478 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 [2018-12-01 20:04:30,157 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:30,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:30,159 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-01 20:04:30,572 WARN L854 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|)) is different from true [2018-12-01 20:04:30,580 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-01 20:04:30,581 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:30,586 INFO L267 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. [2018-12-01 20:04:30,586 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-12-01 20:04:30,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-12-01 20:04:30,594 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 20:04:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:30,687 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 20:04:30,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2018-12-01 20:04:30,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 20:04:30,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 20:04:30,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=5, NotChecked=10, Total=56 [2018-12-01 20:04:30,688 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 8 states. [2018-12-01 20:04:31,569 WARN L180 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2018-12-01 20:04:31,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:31,730 INFO L93 Difference]: Finished difference Result 66 states and 83 transitions. [2018-12-01 20:04:31,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 20:04:31,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-01 20:04:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:31,731 INFO L225 Difference]: With dead ends: 66 [2018-12-01 20:04:31,731 INFO L226 Difference]: Without dead ends: 66 [2018-12-01 20:04:31,732 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22, Invalid=47, Unknown=7, NotChecked=14, Total=90 [2018-12-01 20:04:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-01 20:04:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2018-12-01 20:04:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-01 20:04:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 81 transitions. [2018-12-01 20:04:31,737 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 81 transitions. Word has length 23 [2018-12-01 20:04:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:31,738 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 81 transitions. [2018-12-01 20:04:31,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 20:04:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2018-12-01 20:04:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 20:04:31,739 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:31,739 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:31,739 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:31,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:31,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1195642290, now seen corresponding path program 1 times [2018-12-01 20:04:31,740 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:31,740 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:31,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:31,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:31,825 INFO L478 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 [2018-12-01 20:04:31,825 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:31,833 INFO L478 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 [2018-12-01 20:04:31,833 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:31,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:31,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-01 20:04:32,756 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-01 20:04:32,765 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:32,767 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:32,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-01 20:04:32,768 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:32,785 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-01 20:04:32,786 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:32,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:32,798 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-01 20:04:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-12-01 20:04:32,823 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 20:04:33,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 20:04:33,082 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 20:04:33,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:33,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:33,118 INFO L478 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 [2018-12-01 20:04:33,118 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:33,126 INFO L478 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 [2018-12-01 20:04:33,127 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:33,132 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:33,133 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-01 20:04:33,145 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:33,148 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-01 20:04:33,148 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:33,163 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:33,164 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 20:04:33,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-01 20:04:33,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 20:04:33,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 20:04:33,177 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-01 20:04:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-12-01 20:04:33,178 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 20:04:33,339 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 20:04:33,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-01 20:04:33,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 20:04:33,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 20:04:33,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=88, Unknown=1, NotChecked=18, Total=132 [2018-12-01 20:04:33,339 INFO L87 Difference]: Start difference. First operand 62 states and 81 transitions. Second operand 10 states. [2018-12-01 20:04:33,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:33,851 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2018-12-01 20:04:33,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 20:04:33,852 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-12-01 20:04:33,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:33,853 INFO L225 Difference]: With dead ends: 100 [2018-12-01 20:04:33,853 INFO L226 Difference]: Without dead ends: 100 [2018-12-01 20:04:33,853 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=221, Unknown=1, NotChecked=30, Total=306 [2018-12-01 20:04:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-01 20:04:33,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 66. [2018-12-01 20:04:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-01 20:04:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2018-12-01 20:04:33,857 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 23 [2018-12-01 20:04:33,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:33,857 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2018-12-01 20:04:33,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 20:04:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2018-12-01 20:04:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 20:04:33,858 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:33,858 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:33,858 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:33,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:33,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1701200916, now seen corresponding path program 1 times [2018-12-01 20:04:33,858 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:33,858 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:33,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:33,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:04:33,924 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 20:04:33,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:33,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 20:04:33,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 20:04:33,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 20:04:33,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:33,927 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand 5 states. [2018-12-01 20:04:33,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:33,957 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-12-01 20:04:33,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 20:04:33,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-12-01 20:04:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:33,958 INFO L225 Difference]: With dead ends: 46 [2018-12-01 20:04:33,958 INFO L226 Difference]: Without dead ends: 44 [2018-12-01 20:04:33,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:33,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-01 20:04:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-01 20:04:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-01 20:04:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-12-01 20:04:33,960 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2018-12-01 20:04:33,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:33,960 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-12-01 20:04:33,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 20:04:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-12-01 20:04:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 20:04:33,961 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:33,961 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:33,961 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:33,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:33,961 INFO L82 PathProgramCache]: Analyzing trace with hash 2038952217, now seen corresponding path program 1 times [2018-12-01 20:04:33,961 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:33,961 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:33,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:33,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:34,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 20:04:34,012 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 20:04:34,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:34,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 20:04:34,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 20:04:34,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 20:04:34,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:34,014 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 5 states. [2018-12-01 20:04:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:34,051 INFO L93 Difference]: Finished difference Result 70 states and 85 transitions. [2018-12-01 20:04:34,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 20:04:34,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-01 20:04:34,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:34,051 INFO L225 Difference]: With dead ends: 70 [2018-12-01 20:04:34,052 INFO L226 Difference]: Without dead ends: 70 [2018-12-01 20:04:34,052 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-01 20:04:34,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-01 20:04:34,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 48. [2018-12-01 20:04:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-01 20:04:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-12-01 20:04:34,054 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 25 [2018-12-01 20:04:34,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:34,054 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2018-12-01 20:04:34,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 20:04:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-12-01 20:04:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 20:04:34,055 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:34,055 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:34,055 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:34,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:34,055 INFO L82 PathProgramCache]: Analyzing trace with hash -513204744, now seen corresponding path program 1 times [2018-12-01 20:04:34,055 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:34,055 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:34,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:04:34,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:04:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-01 20:04:34,117 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 20:04:34,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:04:34,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 20:04:34,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 20:04:34,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 20:04:34,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 20:04:34,119 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 4 states. [2018-12-01 20:04:34,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:04:34,167 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-12-01 20:04:34,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 20:04:34,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-01 20:04:34,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 20:04:34,168 INFO L225 Difference]: With dead ends: 53 [2018-12-01 20:04:34,168 INFO L226 Difference]: Without dead ends: 53 [2018-12-01 20:04:34,168 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 20:04:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-01 20:04:34,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-12-01 20:04:34,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-01 20:04:34,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2018-12-01 20:04:34,171 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 25 [2018-12-01 20:04:34,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 20:04:34,172 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2018-12-01 20:04:34,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 20:04:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2018-12-01 20:04:34,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 20:04:34,172 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 20:04:34,172 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:04:34,173 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-01 20:04:34,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:04:34,173 INFO L82 PathProgramCache]: Analyzing trace with hash 731443107, now seen corresponding path program 1 times [2018-12-01 20:04:34,173 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 20:04:34,173 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f753b29-a109-4a4a-8e38-ecf4be6897b0/bin-2019/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 [2018-12-01 20:04:34,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:04:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:04:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:04:34,280 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 20:04:34,287 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-01 20:04:34,290 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 20:04:34,291 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-01 20:04:34,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 08:04:34 BoogieIcfgContainer [2018-12-01 20:04:34,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 20:04:34,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 20:04:34,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 20:04:34,297 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 20:04:34,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:04:29" (3/4) ... [2018-12-01 20:04:34,300 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 20:04:34,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 20:04:34,300 INFO L168 Benchmark]: Toolchain (without parser) took 5970.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -110.7 MB). Peak memory consumption was 106.3 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:34,301 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:04:34,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:34,301 INFO L168 Benchmark]: Boogie Preprocessor took 46.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:04:34,301 INFO L168 Benchmark]: RCFGBuilder took 813.61 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: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:34,302 INFO L168 Benchmark]: TraceAbstraction took 4766.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -48.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-12-01 20:04:34,302 INFO L168 Benchmark]: Witness Printer took 3.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:04:34,303 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 813.61 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: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4766.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -48.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1458]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1458. Possible FailurePath: [L1135] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483384:0}] [L1459] CALL entry_point() VAL [ldv_global_msg_list={-2147483384:0}] [L1439] int len = 10; VAL [ldv_global_msg_list={-2147483384:0}, len=10] [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={-2147483384:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); VAL [\old(size)=40, \result={264:0}, ldv_global_msg_list={-2147483384:0}, malloc(size)={264:0}, size=40] [L1440] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={-2147483384:0}, ldv_malloc(sizeof(struct A18*)*len)={264:0}, len=10] [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; VAL [array={264:0}, i=0, ldv_global_msg_list={-2147483384:0}, len=10] [L1444] COND FALSE !(!array) VAL [array={264:0}, i=0, ldv_global_msg_list={-2147483384:0}, len=10] [L1445] COND TRUE i=0) VAL [array={264:0}, i=0, j=4294967295, ldv_global_msg_list={-2147483384:0}, len=10, p={0:0}] [L1459] RET entry_point() VAL [ldv_global_msg_list={-2147483384:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 326 locations, 73 error locations. UNSAFE Result, 4.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 330 SDtfs, 233 SDslu, 731 SDs, 0 SdLazy, 519 SolverSat, 40 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 182 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 118 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 207 ConstructedInterpolants, 10 QuantifiedInterpolants, 18165 SizeOfPredicates, 23 NumberOfNonLiveVariables, 783 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 18/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...