./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 95dd23c3faf110dda910911db52d9ffd09e9e4b3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 95dd23c3faf110dda910911db52d9ffd09e9e4b3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:38:24,900 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:38:24,901 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:38:24,910 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:38:24,910 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:38:24,911 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:38:24,911 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:38:24,913 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:38:24,914 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:38:24,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:38:24,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:38:24,915 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:38:24,916 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:38:24,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:38:24,917 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:38:24,918 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:38:24,918 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:38:24,919 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:38:24,921 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:38:24,922 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:38:24,922 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:38:24,923 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:38:24,924 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:38:24,925 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:38:24,925 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:38:24,925 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:38:24,926 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:38:24,926 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:38:24,927 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:38:24,928 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:38:24,928 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:38:24,928 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:38:24,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:38:24,929 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:38:24,929 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:38:24,930 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:38:24,930 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 12:38:24,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:38:24,939 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:38:24,940 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:38:24,940 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:38:24,940 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:38:24,941 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:38:24,941 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:38:24,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:38:24,941 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:38:24,941 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:38:24,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:38:24,941 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:38:24,942 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:38:24,942 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 12:38:24,942 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 12:38:24,942 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 12:38:24,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:38:24,942 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:38:24,942 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:38:24,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:38:24,943 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:38:24,943 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:38:24,943 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:38:24,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:38:24,943 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:38:24,943 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:38:24,943 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:38:24,944 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:38:24,944 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_514197c8-57b3-4857-b0a6-c097c0950e71/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 -> 95dd23c3faf110dda910911db52d9ffd09e9e4b3 [2018-11-28 12:38:24,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:38:24,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:38:24,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:38:24,981 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:38:24,981 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:38:24,981 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-11-28 12:38:25,026 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/f83d688ec/4fb9f4b59e5c4ba8bd35e3490824fd83/FLAGef9b48bef [2018-11-28 12:38:25,485 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:38:25,486 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-11-28 12:38:25,496 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/f83d688ec/4fb9f4b59e5c4ba8bd35e3490824fd83/FLAGef9b48bef [2018-11-28 12:38:25,999 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/f83d688ec/4fb9f4b59e5c4ba8bd35e3490824fd83 [2018-11-28 12:38:26,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:38:26,003 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:38:26,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:38:26,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:38:26,006 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:38:26,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e95ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26, skipping insertion in model container [2018-11-28 12:38:26,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:38:26,042 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:38:26,314 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:38:26,326 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:38:26,365 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:38:26,406 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:38:26,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26 WrapperNode [2018-11-28 12:38:26,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:38:26,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:38:26,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:38:26,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:38:26,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... [2018-11-28 12:38:26,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:38:26,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:38:26,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:38:26,463 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:38:26,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:38:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:38:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-11-28 12:38:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 12:38:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 12:38:26,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2018-11-28 12:38:26,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-11-28 12:38:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-11-28 12:38:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-28 12:38:26,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-28 12:38:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 12:38:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 12:38:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 12:38:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 12:38:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 12:38:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 12:38:26,511 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 12:38:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 12:38:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 12:38:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 12:38:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:38:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-11-28 12:38:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2018-11-28 12:38:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-11-28 12:38:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-11-28 12:38:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:38:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2018-11-28 12:38:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2018-11-28 12:38:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-28 12:38:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2018-11-28 12:38:26,895 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 12:38:27,083 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 12:38:27,265 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:38:27,265 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:38:27,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:27 BoogieIcfgContainer [2018-11-28 12:38:27,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:38:27,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:38:27,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:38:27,268 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:38:27,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:38:26" (1/3) ... [2018-11-28 12:38:27,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e34c86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:38:27, skipping insertion in model container [2018-11-28 12:38:27,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:26" (2/3) ... [2018-11-28 12:38:27,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e34c86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:38:27, skipping insertion in model container [2018-11-28 12:38:27,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:27" (3/3) ... [2018-11-28 12:38:27,270 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-11-28 12:38:27,276 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:38:27,284 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 69 error locations. [2018-11-28 12:38:27,294 INFO L257 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2018-11-28 12:38:27,310 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:38:27,311 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:38:27,311 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:38:27,311 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:38:27,311 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:38:27,311 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:38:27,311 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:38:27,311 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:38:27,311 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:38:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2018-11-28 12:38:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:38:27,330 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:27,331 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:27,332 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:27,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:27,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1318867473, now seen corresponding path program 1 times [2018-11-28 12:38:27,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:27,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:27,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:27,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:27,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:27,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:38:27,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:38:27,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:38:27,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:38:27,505 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2018-11-28 12:38:27,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:27,563 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-11-28 12:38:27,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:38:27,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-28 12:38:27,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:27,571 INFO L225 Difference]: With dead ends: 41 [2018-11-28 12:38:27,572 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 12:38:27,573 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 [2018-11-28 12:38:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 12:38:27,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2018-11-28 12:38:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 12:38:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-28 12:38:27,603 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2018-11-28 12:38:27,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:27,604 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-28 12:38:27,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:38:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-28 12:38:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:38:27,605 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:27,605 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:27,606 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:27,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:27,606 INFO L82 PathProgramCache]: Analyzing trace with hash 423942862, now seen corresponding path program 1 times [2018-11-28 12:38:27,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:27,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:27,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:27,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:27,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:27,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:38:27,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:38:27,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:38:27,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:38:27,650 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-11-28 12:38:27,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:27,697 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-11-28 12:38:27,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:38:27,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-28 12:38:27,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:27,698 INFO L225 Difference]: With dead ends: 39 [2018-11-28 12:38:27,698 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 12:38:27,698 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 [2018-11-28 12:38:27,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 12:38:27,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-28 12:38:27,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 12:38:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-11-28 12:38:27,703 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 17 [2018-11-28 12:38:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:27,704 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-28 12:38:27,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:38:27,704 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-11-28 12:38:27,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:38:27,704 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:27,704 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:27,705 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:27,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:27,705 INFO L82 PathProgramCache]: Analyzing trace with hash 2065280679, now seen corresponding path program 1 times [2018-11-28 12:38:27,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:27,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:27,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:27,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:27,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:27,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:38:27,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:38:27,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:38:27,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:38:27,782 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 4 states. [2018-11-28 12:38:27,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:27,805 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2018-11-28 12:38:27,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:38:27,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-28 12:38:27,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:27,807 INFO L225 Difference]: With dead ends: 46 [2018-11-28 12:38:27,807 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 12:38:27,807 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:38:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 12:38:27,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2018-11-28 12:38:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 12:38:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-11-28 12:38:27,813 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 18 [2018-11-28 12:38:27,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:27,813 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-11-28 12:38:27,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:38:27,813 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-11-28 12:38:27,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:38:27,815 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:27,815 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:27,816 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:27,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:27,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1396667935, now seen corresponding path program 1 times [2018-11-28 12:38:27,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:27,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:27,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:27,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:27,920 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:27,920 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:27,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:27,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:28,002 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 [2018-11-28 12:38:28,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,014 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-28 12:38:28,062 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:28,063 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:28,064 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 [2018-11-28 12:38:28,064 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,070 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. [2018-11-28 12:38:28,070 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-11-28 12:38:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:28,117 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:28,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2018-11-28 12:38:28,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:38:28,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:38:28,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:38:28,118 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 9 states. [2018-11-28 12:38:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:28,366 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-11-28 12:38:28,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:38:28,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 12:38:28,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:28,367 INFO L225 Difference]: With dead ends: 63 [2018-11-28 12:38:28,367 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 12:38:28,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:38:28,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 12:38:28,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2018-11-28 12:38:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 12:38:28,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2018-11-28 12:38:28,372 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 22 [2018-11-28 12:38:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:28,372 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-11-28 12:38:28,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:38:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2018-11-28 12:38:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:38:28,373 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:28,373 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:28,373 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:28,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:28,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1396667936, now seen corresponding path program 1 times [2018-11-28 12:38:28,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:28,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:28,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:28,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:28,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:28,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:28,527 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:28,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:28,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:28,578 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 [2018-11-28 12:38:28,579 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,589 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 [2018-11-28 12:38:28,589 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,594 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,594 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-11-28 12:38:28,653 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:28,653 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:28,654 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 [2018-11-28 12:38:28,654 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,663 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 [2018-11-28 12:38:28,663 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,669 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:28,669 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:38:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:28,685 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:28,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-11-28 12:38:28,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:38:28,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:38:28,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:38:28,686 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 11 states. [2018-11-28 12:38:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:29,034 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2018-11-28 12:38:29,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 12:38:29,034 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-11-28 12:38:29,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:29,034 INFO L225 Difference]: With dead ends: 60 [2018-11-28 12:38:29,035 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 12:38:29,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:38:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 12:38:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2018-11-28 12:38:29,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 12:38:29,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2018-11-28 12:38:29,039 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 22 [2018-11-28 12:38:29,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:29,039 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2018-11-28 12:38:29,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:38:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2018-11-28 12:38:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:38:29,040 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:29,040 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] [2018-11-28 12:38:29,041 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:29,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:29,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1103264928, now seen corresponding path program 1 times [2018-11-28 12:38:29,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:29,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:29,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:29,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:29,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:38:29,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:29,085 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:29,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:29,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:29,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:38:29,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2018-11-28 12:38:29,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:38:29,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:38:29,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:38:29,154 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 5 states. [2018-11-28 12:38:29,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:29,169 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-28 12:38:29,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:38:29,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-28 12:38:29,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:29,170 INFO L225 Difference]: With dead ends: 32 [2018-11-28 12:38:29,170 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 12:38:29,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:38:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 12:38:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 12:38:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 12:38:29,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-11-28 12:38:29,173 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2018-11-28 12:38:29,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:29,173 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-11-28 12:38:29,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:38:29,173 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-11-28 12:38:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 12:38:29,174 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:29,174 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, 1, 1] [2018-11-28 12:38:29,174 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:29,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:29,175 INFO L82 PathProgramCache]: Analyzing trace with hash 2122225147, now seen corresponding path program 1 times [2018-11-28 12:38:29,175 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:29,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:29,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:29,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:29,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:38:29,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:29,232 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:29,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:29,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:38:29,364 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:29,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-28 12:38:29,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:38:29,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:38:29,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:38:29,365 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 7 states. [2018-11-28 12:38:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:29,396 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-11-28 12:38:29,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:38:29,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-28 12:38:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:29,398 INFO L225 Difference]: With dead ends: 37 [2018-11-28 12:38:29,398 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 12:38:29,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:38:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 12:38:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2018-11-28 12:38:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 12:38:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-28 12:38:29,402 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 27 [2018-11-28 12:38:29,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:29,402 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-28 12:38:29,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:38:29,402 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-28 12:38:29,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 12:38:29,403 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:29,403 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:29,403 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:29,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:29,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1065839756, now seen corresponding path program 1 times [2018-11-28 12:38:29,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:29,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:29,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:29,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:29,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:38:29,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:29,564 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:29,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:29,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:29,616 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 [2018-11-28 12:38:29,616 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,621 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 [2018-11-28 12:38:29,621 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-11-28 12:38:29,661 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:29,662 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 [2018-11-28 12:38:29,662 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,671 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:29,671 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:29,672 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 [2018-11-28 12:38:29,672 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,678 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:38:29,705 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:29,710 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 [2018-11-28 12:38:29,710 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,749 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:29,750 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:29,751 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 [2018-11-28 12:38:29,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:29,790 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:38:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:38:29,843 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:29,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2018-11-28 12:38:29,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 12:38:29,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 12:38:29,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:38:29,843 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 15 states. [2018-11-28 12:38:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:31,155 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-28 12:38:31,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 12:38:31,155 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-11-28 12:38:31,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:31,156 INFO L225 Difference]: With dead ends: 56 [2018-11-28 12:38:31,156 INFO L226 Difference]: Without dead ends: 56 [2018-11-28 12:38:31,156 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2018-11-28 12:38:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-28 12:38:31,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 35. [2018-11-28 12:38:31,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 12:38:31,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-11-28 12:38:31,160 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 31 [2018-11-28 12:38:31,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:31,160 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2018-11-28 12:38:31,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 12:38:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2018-11-28 12:38:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:38:31,161 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:31,161 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:31,162 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:31,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:31,166 INFO L82 PathProgramCache]: Analyzing trace with hash 2026286375, now seen corresponding path program 2 times [2018-11-28 12:38:31,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:31,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:31,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:31,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:31,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:31,211 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:38:31,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:31,212 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:31,226 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:38:31,247 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:38:31,247 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:31,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:38:31,291 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:31,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-28 12:38:31,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:38:31,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:38:31,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:38:31,292 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 9 states. [2018-11-28 12:38:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:31,327 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2018-11-28 12:38:31,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:38:31,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-11-28 12:38:31,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:31,328 INFO L225 Difference]: With dead ends: 42 [2018-11-28 12:38:31,328 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 12:38:31,328 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:38:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 12:38:31,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2018-11-28 12:38:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 12:38:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-28 12:38:31,331 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 36 [2018-11-28 12:38:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:31,331 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-28 12:38:31,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:38:31,332 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-28 12:38:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 12:38:31,332 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:31,332 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:31,333 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:31,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:31,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1656146784, now seen corresponding path program 2 times [2018-11-28 12:38:31,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:31,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:31,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:31,334 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:31,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:31,508 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-28 12:38:31,508 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:31,508 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:31,517 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:38:31,542 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:38:31,542 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:31,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:31,562 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 [2018-11-28 12:38:31,562 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,569 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 [2018-11-28 12:38:31,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,575 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-11-28 12:38:31,647 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,649 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 [2018-11-28 12:38:31,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,670 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,671 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,671 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 [2018-11-28 12:38:31,672 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:38:31,680 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:33, output treesize:17 [2018-11-28 12:38:31,749 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,751 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 [2018-11-28 12:38:31,751 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,761 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,762 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,763 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 [2018-11-28 12:38:31,763 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:38:31,770 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:33, output treesize:17 [2018-11-28 12:38:31,822 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,823 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:31,824 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 [2018-11-28 12:38:31,824 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,834 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 [2018-11-28 12:38:31,835 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:31,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:38:31,843 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:33, output treesize:17 [2018-11-28 12:38:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:38:31,886 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:31,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 21 [2018-11-28 12:38:31,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-28 12:38:31,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-28 12:38:31,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-11-28 12:38:31,888 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 22 states. [2018-11-28 12:38:33,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:33,986 INFO L93 Difference]: Finished difference Result 74 states and 90 transitions. [2018-11-28 12:38:33,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-28 12:38:33,986 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 40 [2018-11-28 12:38:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:33,987 INFO L225 Difference]: With dead ends: 74 [2018-11-28 12:38:33,987 INFO L226 Difference]: Without dead ends: 74 [2018-11-28 12:38:33,988 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=240, Invalid=1320, Unknown=0, NotChecked=0, Total=1560 [2018-11-28 12:38:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-28 12:38:33,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 36. [2018-11-28 12:38:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 12:38:33,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-28 12:38:33,991 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 40 [2018-11-28 12:38:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:33,991 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-28 12:38:33,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-28 12:38:33,991 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-28 12:38:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-28 12:38:33,992 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:33,992 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:33,992 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:33,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:33,992 INFO L82 PathProgramCache]: Analyzing trace with hash 625469307, now seen corresponding path program 3 times [2018-11-28 12:38:33,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:33,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:33,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:33,994 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:33,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-28 12:38:34,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:34,042 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:34,063 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:38:34,106 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-28 12:38:34,107 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:34,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-28 12:38:34,175 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:34,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-11-28 12:38:34,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:38:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:38:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:38:34,176 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 11 states. [2018-11-28 12:38:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:34,210 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2018-11-28 12:38:34,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:38:34,211 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-11-28 12:38:34,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:34,211 INFO L225 Difference]: With dead ends: 45 [2018-11-28 12:38:34,211 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 12:38:34,212 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:38:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 12:38:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-11-28 12:38:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 12:38:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-28 12:38:34,216 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 45 [2018-11-28 12:38:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:34,216 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-28 12:38:34,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:38:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-28 12:38:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-28 12:38:34,217 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:34,217 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:34,218 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:34,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:34,218 INFO L82 PathProgramCache]: Analyzing trace with hash -979301465, now seen corresponding path program 4 times [2018-11-28 12:38:34,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:34,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:34,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:34,219 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:34,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:34,274 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-28 12:38:34,274 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:34,274 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:34,281 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 12:38:34,306 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 12:38:34,306 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:34,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-28 12:38:34,375 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:34,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-11-28 12:38:34,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 12:38:34,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 12:38:34,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:38:34,376 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 13 states. [2018-11-28 12:38:34,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:34,425 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2018-11-28 12:38:34,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:38:34,426 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2018-11-28 12:38:34,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:34,426 INFO L225 Difference]: With dead ends: 50 [2018-11-28 12:38:34,426 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 12:38:34,427 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:38:34,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 12:38:34,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2018-11-28 12:38:34,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 12:38:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-11-28 12:38:34,429 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 54 [2018-11-28 12:38:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:34,429 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-28 12:38:34,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 12:38:34,430 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-11-28 12:38:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-28 12:38:34,430 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:34,430 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:34,431 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:34,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:34,431 INFO L82 PathProgramCache]: Analyzing trace with hash -907028229, now seen corresponding path program 5 times [2018-11-28 12:38:34,431 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:34,431 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:34,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:34,432 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:34,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-28 12:38:34,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:34,498 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:34,509 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 12:38:34,556 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-11-28 12:38:34,556 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:34,558 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-28 12:38:34,610 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:34,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-11-28 12:38:34,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 12:38:34,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 12:38:34,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:38:34,611 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 15 states. [2018-11-28 12:38:34,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:34,653 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2018-11-28 12:38:34,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:38:34,653 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2018-11-28 12:38:34,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:34,654 INFO L225 Difference]: With dead ends: 55 [2018-11-28 12:38:34,654 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 12:38:34,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:38:34,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 12:38:34,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2018-11-28 12:38:34,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-28 12:38:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2018-11-28 12:38:34,658 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 63 [2018-11-28 12:38:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:34,658 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2018-11-28 12:38:34,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 12:38:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2018-11-28 12:38:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-28 12:38:34,659 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:34,659 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:34,660 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:34,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:34,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1257190873, now seen corresponding path program 6 times [2018-11-28 12:38:34,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:34,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:34,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:34,661 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:34,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-28 12:38:34,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:34,731 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:34,758 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 12:38:34,874 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-11-28 12:38:34,874 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:34,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-28 12:38:34,955 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:34,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-11-28 12:38:34,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 12:38:34,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 12:38:34,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:38:34,956 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand 17 states. [2018-11-28 12:38:35,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:35,004 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2018-11-28 12:38:35,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:38:35,004 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 72 [2018-11-28 12:38:35,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:35,005 INFO L225 Difference]: With dead ends: 60 [2018-11-28 12:38:35,005 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 12:38:35,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:38:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 12:38:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2018-11-28 12:38:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-28 12:38:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2018-11-28 12:38:35,010 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 72 [2018-11-28 12:38:35,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:35,010 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2018-11-28 12:38:35,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 12:38:35,010 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2018-11-28 12:38:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-28 12:38:35,011 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:35,011 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:35,012 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:35,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:35,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1846438523, now seen corresponding path program 7 times [2018-11-28 12:38:35,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:35,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:35,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:35,013 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:35,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:35,101 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-11-28 12:38:35,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:35,101 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:35,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:35,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-11-28 12:38:35,263 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:35,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-11-28 12:38:35,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-28 12:38:35,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-28 12:38:35,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=199, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:38:35,264 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand 19 states. [2018-11-28 12:38:35,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:35,344 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2018-11-28 12:38:35,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:38:35,344 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 81 [2018-11-28 12:38:35,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:35,345 INFO L225 Difference]: With dead ends: 65 [2018-11-28 12:38:35,345 INFO L226 Difference]: Without dead ends: 65 [2018-11-28 12:38:35,345 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=143, Invalid=199, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:38:35,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-28 12:38:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2018-11-28 12:38:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-28 12:38:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2018-11-28 12:38:35,349 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 81 [2018-11-28 12:38:35,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:35,349 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2018-11-28 12:38:35,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-28 12:38:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2018-11-28 12:38:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-28 12:38:35,351 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:35,351 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:35,351 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:35,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:35,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1870796633, now seen corresponding path program 8 times [2018-11-28 12:38:35,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:35,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:35,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:35,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:35,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-11-28 12:38:35,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:35,440 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:35,448 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:38:35,493 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:38:35,493 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:35,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-11-28 12:38:35,583 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:35,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-11-28 12:38:35,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-28 12:38:35,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-28 12:38:35,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=246, Unknown=0, NotChecked=0, Total=420 [2018-11-28 12:38:35,584 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand 21 states. [2018-11-28 12:38:35,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:35,658 INFO L93 Difference]: Finished difference Result 70 states and 90 transitions. [2018-11-28 12:38:35,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:38:35,659 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 90 [2018-11-28 12:38:35,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:35,660 INFO L225 Difference]: With dead ends: 70 [2018-11-28 12:38:35,660 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 12:38:35,661 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=246, Unknown=0, NotChecked=0, Total=420 [2018-11-28 12:38:35,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 12:38:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2018-11-28 12:38:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-28 12:38:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2018-11-28 12:38:35,664 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 90 [2018-11-28 12:38:35,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:35,665 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2018-11-28 12:38:35,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-28 12:38:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2018-11-28 12:38:35,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-28 12:38:35,666 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:35,666 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:35,666 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:35,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:35,667 INFO L82 PathProgramCache]: Analyzing trace with hash -583296005, now seen corresponding path program 9 times [2018-11-28 12:38:35,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:35,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:35,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:35,668 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:35,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-11-28 12:38:35,755 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:35,755 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:35,774 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:38:36,180 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-11-28 12:38:36,181 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:36,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-11-28 12:38:36,295 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:36,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2018-11-28 12:38:36,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-28 12:38:36,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-28 12:38:36,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=298, Unknown=0, NotChecked=0, Total=506 [2018-11-28 12:38:36,296 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand 23 states. [2018-11-28 12:38:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:36,415 INFO L93 Difference]: Finished difference Result 75 states and 97 transitions. [2018-11-28 12:38:36,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 12:38:36,416 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 99 [2018-11-28 12:38:36,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:36,417 INFO L225 Difference]: With dead ends: 75 [2018-11-28 12:38:36,417 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 12:38:36,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=223, Invalid=329, Unknown=0, NotChecked=0, Total=552 [2018-11-28 12:38:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 12:38:36,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2018-11-28 12:38:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 12:38:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2018-11-28 12:38:36,421 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 99 [2018-11-28 12:38:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:36,421 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2018-11-28 12:38:36,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-28 12:38:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2018-11-28 12:38:36,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-28 12:38:36,423 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:36,423 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:36,423 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_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_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION]=== [2018-11-28 12:38:36,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:36,423 INFO L82 PathProgramCache]: Analyzing trace with hash 391145255, now seen corresponding path program 10 times [2018-11-28 12:38:36,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:36,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:36,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:36,424 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:38:36,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:38:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:38:36,522 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:38:36,537 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:38:36,542 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# [2018-11-28 12:38:36,542 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 51 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-11-28 12:38:36,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:38:36 BoogieIcfgContainer [2018-11-28 12:38:36,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:38:36,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:38:36,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:38:36,562 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:38:36,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:27" (3/4) ... [2018-11-28 12:38:36,566 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:38:36,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:38:36,567 INFO L168 Benchmark]: Toolchain (without parser) took 10565.07 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 310.4 MB). Free memory was 956.7 MB in the beginning and 1.0 GB in the end (delta: -59.9 MB). Peak memory consumption was 250.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:36,568 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:38:36,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:36,571 INFO L168 Benchmark]: Boogie Preprocessor took 54.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:36,571 INFO L168 Benchmark]: RCFGBuilder took 803.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.4 MB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:36,571 INFO L168 Benchmark]: TraceAbstraction took 9293.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 994.4 MB in the beginning and 1.0 GB in the end (delta: -22.1 MB). Peak memory consumption was 163.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:36,572 INFO L168 Benchmark]: Witness Printer took 6.93 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:38:36,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 403.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 803.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.4 MB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9293.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 994.4 MB in the beginning and 1.0 GB in the end (delta: -22.1 MB). Peak memory consumption was 163.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.93 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 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 41 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 51 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: 1452]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1452. 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={66:0}] [L1453] CALL entry_point() VAL [ldv_global_msg_list={66:0}] [L1439] int len = 10; VAL [ldv_global_msg_list={66:0}, len=10] [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={66:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); VAL [\old(size)=40, \result={50:0}, ldv_global_msg_list={66:0}, malloc(size)={50:0}, size=40] [L1440] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={66:0}, ldv_malloc(sizeof(struct A18*)*len)={50:0}, len=10] [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; VAL [array={50:0}, i=0, ldv_global_msg_list={66:0}, len=10] [L1443] COND FALSE !(!array) VAL [array={50:0}, i=0, ldv_global_msg_list={66:0}, len=10] [L1444] COND TRUE i main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 -> 95dd23c3faf110dda910911db52d9ffd09e9e4b3 [2018-11-28 12:38:38,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:38:38,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:38:38,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:38:38,126 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:38:38,126 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:38:38,126 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-11-28 12:38:38,172 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/0981b2d96/9152b9c1b39b485d89dfee8d7864ccfb/FLAGc7f4dc120 [2018-11-28 12:38:38,627 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:38:38,628 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-11-28 12:38:38,638 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/0981b2d96/9152b9c1b39b485d89dfee8d7864ccfb/FLAGc7f4dc120 [2018-11-28 12:38:39,144 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/data/0981b2d96/9152b9c1b39b485d89dfee8d7864ccfb [2018-11-28 12:38:39,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:38:39,147 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:38:39,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:38:39,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:38:39,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:38:39,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54bc0d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39, skipping insertion in model container [2018-11-28 12:38:39,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:38:39,186 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:38:39,416 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:38:39,473 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:38:39,512 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:38:39,558 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:38:39,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39 WrapperNode [2018-11-28 12:38:39,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:38:39,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:38:39,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:38:39,559 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:38:39,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:38:39,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:38:39,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:38:39,612 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:38:39,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-11-28 12:38:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2018-11-28 12:38:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-11-28 12:38:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-11-28 12:38:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-11-28 12:38:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 12:38:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-11-28 12:38:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-11-28 12:38:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:38:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-28 12:38:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-11-28 12:38:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-11-28 12:38:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 12:38:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 12:38:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 12:38:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 12:38:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 12:38:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 12:38:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 12:38:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 12:38:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 12:38:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 12:38:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 12:38:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 12:38:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 12:38:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 12:38:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 12:38:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 12:38:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 12:38:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:38:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-11-28 12:38:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-11-28 12:38:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2018-11-28 12:38:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:38:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-11-28 12:38:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-11-28 12:38:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2018-11-28 12:38:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-28 12:38:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2018-11-28 12:38:40,010 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 12:38:40,308 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-28 12:38:40,516 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:38:40,517 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:38:40,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:40 BoogieIcfgContainer [2018-11-28 12:38:40,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:38:40,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:38:40,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:38:40,520 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:38:40,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:38:39" (1/3) ... [2018-11-28 12:38:40,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b24eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:38:40, skipping insertion in model container [2018-11-28 12:38:40,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (2/3) ... [2018-11-28 12:38:40,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b24eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:38:40, skipping insertion in model container [2018-11-28 12:38:40,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:40" (3/3) ... [2018-11-28 12:38:40,522 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-11-28 12:38:40,528 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:38:40,535 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 69 error locations. [2018-11-28 12:38:40,545 INFO L257 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2018-11-28 12:38:40,560 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:38:40,561 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:38:40,561 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:38:40,561 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:38:40,561 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:38:40,561 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:38:40,561 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:38:40,561 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:38:40,561 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:38:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2018-11-28 12:38:40,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:38:40,577 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:40,578 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:40,580 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:40,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:40,584 INFO L82 PathProgramCache]: Analyzing trace with hash -38416848, now seen corresponding path program 1 times [2018-11-28 12:38:40,587 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:40,588 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:40,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:40,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:40,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:40,693 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:38:40,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:40,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:38:40,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:38:40,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:38:40,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:38:40,709 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2018-11-28 12:38:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:40,792 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-11-28 12:38:40,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:38:40,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-28 12:38:40,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:40,802 INFO L225 Difference]: With dead ends: 41 [2018-11-28 12:38:40,803 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 12:38:40,804 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 [2018-11-28 12:38:40,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 12:38:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2018-11-28 12:38:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 12:38:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-28 12:38:40,838 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2018-11-28 12:38:40,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:40,838 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-28 12:38:40,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:38:40,839 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-28 12:38:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 12:38:40,840 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:40,840 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:40,840 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:40,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:40,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1704393487, now seen corresponding path program 1 times [2018-11-28 12:38:40,841 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:40,841 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:40,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:40,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:40,889 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:38:40,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:40,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:38:40,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:38:40,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:38:40,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:38:40,898 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-11-28 12:38:41,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:41,004 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-11-28 12:38:41,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:38:41,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-28 12:38:41,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:41,006 INFO L225 Difference]: With dead ends: 39 [2018-11-28 12:38:41,006 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 12:38:41,007 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 [2018-11-28 12:38:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 12:38:41,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-28 12:38:41,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 12:38:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-11-28 12:38:41,011 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 17 [2018-11-28 12:38:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:41,012 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-28 12:38:41,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:38:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-11-28 12:38:41,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:38:41,012 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:41,013 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:41,014 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:41,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:41,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1190422937, now seen corresponding path program 1 times [2018-11-28 12:38:41,015 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:41,015 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:41,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:41,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:41,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:41,105 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:38:41,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:41,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:38:41,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:38:41,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:38:41,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:38:41,110 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 4 states. [2018-11-28 12:38:41,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:41,154 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2018-11-28 12:38:41,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:38:41,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-28 12:38:41,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:41,156 INFO L225 Difference]: With dead ends: 46 [2018-11-28 12:38:41,156 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 12:38:41,156 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 [2018-11-28 12:38:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 12:38:41,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2018-11-28 12:38:41,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 12:38:41,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-11-28 12:38:41,162 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 18 [2018-11-28 12:38:41,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:41,162 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-11-28 12:38:41,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:38:41,163 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-11-28 12:38:41,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:38:41,163 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:41,163 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:41,164 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:41,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:41,164 INFO L82 PathProgramCache]: Analyzing trace with hash -198421859, now seen corresponding path program 1 times [2018-11-28 12:38:41,164 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:41,164 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:41,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:41,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:41,245 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 [2018-11-28 12:38:41,246 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:41,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:41,257 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-28 12:38:41,710 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 [2018-11-28 12:38:41,721 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 14 treesize of output 11 [2018-11-28 12:38:41,721 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:41,727 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. [2018-11-28 12:38:41,727 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2018-11-28 12:38:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-11-28 12:38:41,747 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:41,858 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:41,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2018-11-28 12:38:41,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:38:41,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:38:41,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=5, NotChecked=10, Total=56 [2018-11-28 12:38:41,859 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 8 states. [2018-11-28 12:38:42,842 WARN L180 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2018-11-28 12:38:43,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:43,077 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2018-11-28 12:38:43,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:38:43,079 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-11-28 12:38:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:43,080 INFO L225 Difference]: With dead ends: 53 [2018-11-28 12:38:43,080 INFO L226 Difference]: Without dead ends: 53 [2018-11-28 12:38:43,080 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=32, Invalid=73, Unknown=9, NotChecked=18, Total=132 [2018-11-28 12:38:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-28 12:38:43,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2018-11-28 12:38:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 12:38:43,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2018-11-28 12:38:43,085 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 22 [2018-11-28 12:38:43,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:43,086 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-11-28 12:38:43,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:38:43,086 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2018-11-28 12:38:43,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:38:43,087 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:43,087 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:43,087 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:43,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:43,087 INFO L82 PathProgramCache]: Analyzing trace with hash -198421858, now seen corresponding path program 1 times [2018-11-28 12:38:43,088 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:43,088 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:43,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:43,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:43,168 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 [2018-11-28 12:38:43,168 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:43,177 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 [2018-11-28 12:38:43,177 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:43,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:43,182 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:43,966 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 [2018-11-28 12:38:43,975 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:43,977 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:43,977 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 [2018-11-28 12:38:43,977 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:43,996 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 [2018-11-28 12:38:43,997 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:38:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-11-28 12:38:44,027 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:44,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:44,276 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:44,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:44,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:44,317 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 [2018-11-28 12:38:44,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,350 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 [2018-11-28 12:38:44,350 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,357 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:44,372 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:44,373 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:44,374 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 [2018-11-28 12:38:44,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,391 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 [2018-11-28 12:38:44,391 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,402 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:44,402 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-11-28 12:38:44,403 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:44,562 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:44,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-28 12:38:44,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:38:44,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:38:44,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=88, Unknown=1, NotChecked=18, Total=132 [2018-11-28 12:38:44,563 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 10 states. [2018-11-28 12:38:44,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:44,935 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-11-28 12:38:44,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:38:44,936 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-28 12:38:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:44,936 INFO L225 Difference]: With dead ends: 49 [2018-11-28 12:38:44,936 INFO L226 Difference]: Without dead ends: 49 [2018-11-28 12:38:44,937 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=221, Unknown=1, NotChecked=30, Total=306 [2018-11-28 12:38:44,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-28 12:38:44,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2018-11-28 12:38:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 12:38:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2018-11-28 12:38:44,941 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 22 [2018-11-28 12:38:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:44,942 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2018-11-28 12:38:44,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:38:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2018-11-28 12:38:44,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:38:44,942 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:44,943 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] [2018-11-28 12:38:44,943 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:44,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:44,943 INFO L82 PathProgramCache]: Analyzing trace with hash -491824866, now seen corresponding path program 1 times [2018-11-28 12:38:44,943 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:44,943 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:44,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:44,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:45,012 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:38:45,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:45,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:38:45,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:38:45,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:38:45,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:38:45,014 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 5 states. [2018-11-28 12:38:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:45,036 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-28 12:38:45,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:38:45,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-28 12:38:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:45,038 INFO L225 Difference]: With dead ends: 32 [2018-11-28 12:38:45,038 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 12:38:45,038 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:38:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 12:38:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-28 12:38:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 12:38:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-11-28 12:38:45,041 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2018-11-28 12:38:45,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:45,041 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-11-28 12:38:45,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:38:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-11-28 12:38:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 12:38:45,042 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:45,042 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, 1, 1] [2018-11-28 12:38:45,043 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:45,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:45,043 INFO L82 PathProgramCache]: Analyzing trace with hash -768653187, now seen corresponding path program 1 times [2018-11-28 12:38:45,043 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:45,043 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:45,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:45,117 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:38:45,133 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:38:45,189 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:45,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-28 12:38:45,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:38:45,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:38:45,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:38:45,190 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 8 states. [2018-11-28 12:38:45,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:45,300 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2018-11-28 12:38:45,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:38:45,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-11-28 12:38:45,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:45,301 INFO L225 Difference]: With dead ends: 44 [2018-11-28 12:38:45,301 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 12:38:45,302 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:38:45,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 12:38:45,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-11-28 12:38:45,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:38:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-11-28 12:38:45,306 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 27 [2018-11-28 12:38:45,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:45,307 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-11-28 12:38:45,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:38:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-11-28 12:38:45,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 12:38:45,307 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:45,308 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:45,308 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:45,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:45,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1856173644, now seen corresponding path program 1 times [2018-11-28 12:38:45,308 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:45,308 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/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 [2018-11-28 12:38:45,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:45,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:45,429 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 [2018-11-28 12:38:45,429 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:45,437 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 [2018-11-28 12:38:45,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:45,443 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:45,443 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:46,349 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 [2018-11-28 12:38:46,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,356 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,356 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 [2018-11-28 12:38:46,357 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,373 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 [2018-11-28 12:38:46,373 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,382 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,382 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:38:46,425 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,428 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 [2018-11-28 12:38:46,429 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,446 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,447 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,448 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 [2018-11-28 12:38:46,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,467 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 4 not checked. [2018-11-28 12:38:46,485 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:46,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:46,754 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:46,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:46,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:46,791 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 [2018-11-28 12:38:46,792 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,800 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 [2018-11-28 12:38:46,800 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,805 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:46,815 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,817 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 [2018-11-28 12:38:46,818 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,834 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,835 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,836 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 [2018-11-28 12:38:46,836 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,847 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:46,880 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,882 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 [2018-11-28 12:38:46,883 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,898 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,898 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:46,899 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 [2018-11-28 12:38:46,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,909 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:46,909 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:38:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 4 not checked. [2018-11-28 12:38:46,911 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:47,090 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:47,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 12:38:47,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:38:47,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:38:47,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=126, Unknown=1, NotChecked=22, Total=182 [2018-11-28 12:38:47,091 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand 12 states. [2018-11-28 12:38:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:47,519 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-11-28 12:38:47,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:38:47,520 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2018-11-28 12:38:47,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:47,520 INFO L225 Difference]: With dead ends: 46 [2018-11-28 12:38:47,520 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 12:38:47,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=348, Unknown=1, NotChecked=38, Total=462 [2018-11-28 12:38:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 12:38:47,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2018-11-28 12:38:47,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:38:47,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2018-11-28 12:38:47,524 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 31 [2018-11-28 12:38:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:47,525 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2018-11-28 12:38:47,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:38:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-11-28 12:38:47,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 12:38:47,525 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:47,526 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:47,526 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:47,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:47,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1213852510, now seen corresponding path program 2 times [2018-11-28 12:38:47,526 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:47,526 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:38:47,540 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 12:38:47,638 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:38:47,638 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:47,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:47,653 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 [2018-11-28 12:38:47,653 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:47,662 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 [2018-11-28 12:38:47,663 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:47,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:47,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:48,582 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 [2018-11-28 12:38:48,587 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:48,589 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 [2018-11-28 12:38:48,589 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,610 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:48,611 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:48,612 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 [2018-11-28 12:38:48,612 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:38:48,662 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:48,663 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:48,663 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 [2018-11-28 12:38:48,663 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,680 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 [2018-11-28 12:38:48,680 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,691 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:48,761 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:48,762 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:48,763 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 [2018-11-28 12:38:48,763 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,787 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 [2018-11-28 12:38:48,788 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,800 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:48,800 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 6 not checked. [2018-11-28 12:38:48,821 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:49,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:49,130 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:49,136 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:38:49,175 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:38:49,175 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:49,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:49,183 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 [2018-11-28 12:38:49,183 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:49,191 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 [2018-11-28 12:38:49,192 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:49,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:49,197 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:50,756 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)) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|))) is different from true [2018-11-28 12:38:50,762 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:50,763 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:50,764 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 19 treesize of output 23 [2018-11-28 12:38:50,764 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:50,785 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 [2018-11-28 12:38:50,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:50,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:38:50,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-11-28 12:38:50,865 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:50,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2018-11-28 12:38:50,868 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:50,914 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:50,915 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:50,916 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:38:50,917 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-28 12:38:50,917 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:50,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:50,948 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:14 [2018-11-28 12:38:50,979 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:50,982 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 [2018-11-28 12:38:50,982 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:51,003 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:51,004 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:51,005 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 [2018-11-28 12:38:51,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:51,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:51,016 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 10 not checked. [2018-11-28 12:38:51,019 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:51,201 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:51,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 16 [2018-11-28 12:38:51,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 12:38:51,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 12:38:51,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=223, Unknown=2, NotChecked=62, Total=342 [2018-11-28 12:38:51,202 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 17 states. [2018-11-28 12:38:53,355 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-11-28 12:38:53,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:53,878 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2018-11-28 12:38:53,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 12:38:53,878 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 40 [2018-11-28 12:38:53,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:53,879 INFO L225 Difference]: With dead ends: 50 [2018-11-28 12:38:53,879 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 12:38:53,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=110, Invalid=546, Unknown=2, NotChecked=98, Total=756 [2018-11-28 12:38:53,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 12:38:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2018-11-28 12:38:53,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:38:53,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-11-28 12:38:53,883 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 40 [2018-11-28 12:38:53,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:53,883 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-11-28 12:38:53,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 12:38:53,883 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-11-28 12:38:53,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 12:38:53,884 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:53,884 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:53,884 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:38:53,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:53,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1913604340, now seen corresponding path program 3 times [2018-11-28 12:38:53,885 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:38:53,885 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:38:53,902 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-28 12:38:54,100 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-28 12:38:54,100 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:54,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:54,128 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 [2018-11-28 12:38:54,129 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:54,135 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 [2018-11-28 12:38:54,135 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:54,140 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:54,140 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:55,012 WARN L180 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 12:38:55,017 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:55,020 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 [2018-11-28 12:38:55,020 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:55,034 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:55,035 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:55,035 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 [2018-11-28 12:38:55,036 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:55,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:55,045 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-11-28 12:38:55,115 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:55,116 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:55,117 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 [2018-11-28 12:38:55,117 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:55,129 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 [2018-11-28 12:38:55,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:55,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:55,139 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:18 [2018-11-28 12:38:56,079 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 [2018-11-28 12:38:56,084 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:56,085 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:56,085 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 [2018-11-28 12:38:56,086 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,098 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 [2018-11-28 12:38:56,098 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:56,209 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:56,211 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 [2018-11-28 12:38:56,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,231 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:56,232 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:56,233 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 [2018-11-28 12:38:56,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,243 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 12 not checked. [2018-11-28 12:38:56,268 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:56,615 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:38:56,615 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:38:56,622 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:38:56,969 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-28 12:38:56,969 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:38:56,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:38:56,977 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 [2018-11-28 12:38:56,977 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,985 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 [2018-11-28 12:38:56,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:56,991 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:38:56,997 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:56,998 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 [2018-11-28 12:38:56,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,012 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,013 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,013 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 [2018-11-28 12:38:57,013 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:38:57,029 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,031 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 [2018-11-28 12:38:57,031 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,050 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,051 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,051 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 [2018-11-28 12:38:57,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,066 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:38:57,074 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,075 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 [2018-11-28 12:38:57,076 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,095 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,097 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,097 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 [2018-11-28 12:38:57,097 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:57,173 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,174 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:38:57,175 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 [2018-11-28 12:38:57,175 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,196 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 [2018-11-28 12:38:57,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:38:57,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:38:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 8 not checked. [2018-11-28 12:38:57,214 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:38:57,422 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:38:57,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 18 [2018-11-28 12:38:57,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-28 12:38:57,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-28 12:38:57,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=324, Unknown=1, NotChecked=36, Total=420 [2018-11-28 12:38:57,423 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 19 states. [2018-11-28 12:38:59,856 WARN L180 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2018-11-28 12:39:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:10,285 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2018-11-28 12:39:10,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-28 12:39:10,286 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 49 [2018-11-28 12:39:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:10,287 INFO L225 Difference]: With dead ends: 54 [2018-11-28 12:39:10,287 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 12:39:10,288 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=142, Invalid=983, Unknown=1, NotChecked=64, Total=1190 [2018-11-28 12:39:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 12:39:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2018-11-28 12:39:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 12:39:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-11-28 12:39:10,292 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 49 [2018-11-28 12:39:10,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:10,292 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-11-28 12:39:10,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-28 12:39:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-11-28 12:39:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-28 12:39:10,293 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:10,294 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:10,294 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:39:10,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:10,294 INFO L82 PathProgramCache]: Analyzing trace with hash 209115111, now seen corresponding path program 2 times [2018-11-28 12:39:10,295 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:39:10,295 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:39:10,313 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 12:39:10,423 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:39:10,423 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:10,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-28 12:39:10,500 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-28 12:39:10,771 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:39:10,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2018-11-28 12:39:10,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-28 12:39:10,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-28 12:39:10,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:39:10,771 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 19 states. [2018-11-28 12:39:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:11,671 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2018-11-28 12:39:11,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-28 12:39:11,672 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2018-11-28 12:39:11,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:11,672 INFO L225 Difference]: With dead ends: 77 [2018-11-28 12:39:11,672 INFO L226 Difference]: Without dead ends: 77 [2018-11-28 12:39:11,673 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702 [2018-11-28 12:39:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-28 12:39:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2018-11-28 12:39:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:39:11,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 97 transitions. [2018-11-28 12:39:11,678 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 97 transitions. Word has length 54 [2018-11-28 12:39:11,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:11,678 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 97 transitions. [2018-11-28 12:39:11,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-28 12:39:11,679 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 97 transitions. [2018-11-28 12:39:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-28 12:39:11,680 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:11,680 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:11,680 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:39:11,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:11,680 INFO L82 PathProgramCache]: Analyzing trace with hash 890950686, now seen corresponding path program 4 times [2018-11-28 12:39:11,681 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:39:11,681 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:39:11,696 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 12:39:11,858 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 12:39:11,858 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:11,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:11,875 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 [2018-11-28 12:39:11,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:11,884 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 [2018-11-28 12:39:11,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:11,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:11,893 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:12,805 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 [2018-11-28 12:39:12,810 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,812 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,812 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 [2018-11-28 12:39:12,812 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,827 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 [2018-11-28 12:39:12,828 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,837 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:12,871 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,874 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 [2018-11-28 12:39:12,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,887 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,888 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,889 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 [2018-11-28 12:39:12,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,899 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:39:12,935 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,937 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 [2018-11-28 12:39:12,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,950 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,951 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:12,952 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 [2018-11-28 12:39:12,952 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,961 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:12,961 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:39:13,004 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,005 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,005 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 [2018-11-28 12:39:13,006 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,020 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 [2018-11-28 12:39:13,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,031 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,031 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:39:13,077 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,079 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,080 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 [2018-11-28 12:39:13,080 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,104 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 [2018-11-28 12:39:13,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:39:13,148 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 5 proven. 51 refuted. 0 times theorem prover too weak. 40 trivial. 10 not checked. [2018-11-28 12:39:13,149 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:13,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:39:13,570 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:39:13,577 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 12:39:13,632 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 12:39:13,632 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:13,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:13,639 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 [2018-11-28 12:39:13,639 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,648 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 [2018-11-28 12:39:13,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,653 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:13,661 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,666 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,666 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 [2018-11-28 12:39:13,667 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,682 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 [2018-11-28 12:39:13,682 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,697 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:13,704 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,705 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,706 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 [2018-11-28 12:39:13,706 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,729 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 [2018-11-28 12:39:13,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,743 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:39:13,750 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,752 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 [2018-11-28 12:39:13,752 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,768 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,769 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,769 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 [2018-11-28 12:39:13,770 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,780 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,780 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:13,787 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,789 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 [2018-11-28 12:39:13,789 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,804 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,805 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,806 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 [2018-11-28 12:39:13,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,822 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:13,875 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,877 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 [2018-11-28 12:39:13,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,895 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,896 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:13,896 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 [2018-11-28 12:39:13,896 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:13,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:39:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 5 proven. 51 refuted. 0 times theorem prover too weak. 40 trivial. 10 not checked. [2018-11-28 12:39:13,912 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:14,172 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:39:14,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2018-11-28 12:39:14,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-28 12:39:14,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-28 12:39:14,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=288, Unknown=1, NotChecked=34, Total=380 [2018-11-28 12:39:14,173 INFO L87 Difference]: Start difference. First operand 72 states and 97 transitions. Second operand 18 states. [2018-11-28 12:39:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:15,309 INFO L93 Difference]: Finished difference Result 82 states and 106 transitions. [2018-11-28 12:39:15,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-28 12:39:15,309 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 58 [2018-11-28 12:39:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:15,310 INFO L225 Difference]: With dead ends: 82 [2018-11-28 12:39:15,311 INFO L226 Difference]: Without dead ends: 82 [2018-11-28 12:39:15,311 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=138, Invalid=921, Unknown=1, NotChecked=62, Total=1122 [2018-11-28 12:39:15,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-28 12:39:15,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2018-11-28 12:39:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:39:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 96 transitions. [2018-11-28 12:39:15,314 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 96 transitions. Word has length 58 [2018-11-28 12:39:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:15,315 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 96 transitions. [2018-11-28 12:39:15,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-28 12:39:15,315 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 96 transitions. [2018-11-28 12:39:15,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-28 12:39:15,315 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:15,315 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:15,315 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:39:15,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:15,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1561839564, now seen corresponding path program 5 times [2018-11-28 12:39:15,316 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:39:15,316 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:39:15,331 INFO L101 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2018-11-28 12:39:15,631 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-11-28 12:39:15,631 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:15,651 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:15,663 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 [2018-11-28 12:39:15,663 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:15,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:15,667 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-28 12:39:16,621 WARN L854 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| |c_ldv_malloc_#in~size|))) is different from true [2018-11-28 12:39:16,626 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:16,632 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 2 case distinctions, treesize of input 14 treesize of output 15 [2018-11-28 12:39:16,633 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-11-28 12:39:16,646 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 2 xjuncts. [2018-11-28 12:39:16,646 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:32 [2018-11-28 12:39:17,697 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 [2018-11-28 12:39:17,705 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,708 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,710 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,721 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 56 [2018-11-28 12:39:17,722 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-11-28 12:39:17,810 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,811 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,812 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 36 treesize of output 28 [2018-11-28 12:39:17,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:17,815 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,816 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,816 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 38 treesize of output 30 [2018-11-28 12:39:17,817 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:17,883 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,884 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:17,885 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 34 treesize of output 26 [2018-11-28 12:39:17,885 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:17,945 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 26 treesize of output 25 [2018-11-28 12:39:17,946 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:17,996 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-11-28 12:39:17,996 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 9 variables, input treesize:74, output treesize:54 [2018-11-28 12:39:19,586 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)) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|))) is different from true [2018-11-28 12:39:19,594 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:19,596 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:19,596 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 19 treesize of output 23 [2018-11-28 12:39:19,596 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:19,615 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 [2018-11-28 12:39:19,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:19,635 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:19,636 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:27 [2018-11-28 12:39:19,716 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:19,717 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:19,718 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:19,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 42 [2018-11-28 12:39:19,719 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:19,749 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2018-11-28 12:39:19,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:19,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:19,772 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:44, output treesize:41 [2018-11-28 12:39:19,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:19,892 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:19,893 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:19,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2018-11-28 12:39:19,894 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:19,924 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2018-11-28 12:39:19,924 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:19,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:19,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:54, output treesize:14 [2018-11-28 12:39:20,056 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:20,057 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:20,057 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 [2018-11-28 12:39:20,057 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:20,071 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 [2018-11-28 12:39:20,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:20,082 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:20,082 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 12 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 34 not checked. [2018-11-28 12:39:20,118 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:20,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:39:20,493 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:39:20,500 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 12:39:23,141 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-11-28 12:39:23,141 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:23,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:23,150 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 [2018-11-28 12:39:23,151 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,163 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 [2018-11-28 12:39:23,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,168 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,168 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:23,291 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,292 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,292 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 [2018-11-28 12:39:23,293 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,304 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 [2018-11-28 12:39:23,305 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,315 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:39:23,336 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,337 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 [2018-11-28 12:39:23,338 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,352 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,353 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,353 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 [2018-11-28 12:39:23,353 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,364 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:16 [2018-11-28 12:39:23,401 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,403 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 [2018-11-28 12:39:23,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,419 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,425 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,426 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 19 treesize of output 23 [2018-11-28 12:39:23,427 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:23,445 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-11-28 12:39:23,476 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,477 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,478 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:23,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 42 [2018-11-28 12:39:23,479 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2018-11-28 12:39:23,505 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:23,527 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:46, output treesize:42 [2018-11-28 12:39:23,608 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,610 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,611 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:23,611 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:23,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 67 [2018-11-28 12:39:23,612 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2018-11-28 12:39:23,661 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:23,695 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:60, output treesize:62 [2018-11-28 12:39:23,898 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,900 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:23,900 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:23,901 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:23,903 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2018-11-28 12:39:23,904 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 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 [2018-11-28 12:39:23,951 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:23,989 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:75, output treesize:14 [2018-11-28 12:39:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 76 refuted. 0 times theorem prover too weak. 42 trivial. 30 not checked. [2018-11-28 12:39:24,001 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:24,260 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:39:24,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20] total 32 [2018-11-28 12:39:24,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-28 12:39:24,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-28 12:39:24,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=883, Unknown=3, NotChecked=186, Total=1190 [2018-11-28 12:39:24,261 INFO L87 Difference]: Start difference. First operand 72 states and 96 transitions. Second operand 33 states. [2018-11-28 12:39:31,614 WARN L180 SmtUtils]: Spent 7.15 s on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2018-11-28 12:39:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:34,457 INFO L93 Difference]: Finished difference Result 111 states and 147 transitions. [2018-11-28 12:39:34,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-28 12:39:34,458 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 67 [2018-11-28 12:39:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:34,459 INFO L225 Difference]: With dead ends: 111 [2018-11-28 12:39:34,459 INFO L226 Difference]: Without dead ends: 111 [2018-11-28 12:39:34,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 99 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=245, Invalid=2116, Unknown=3, NotChecked=288, Total=2652 [2018-11-28 12:39:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-11-28 12:39:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 89. [2018-11-28 12:39:34,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-28 12:39:34,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 119 transitions. [2018-11-28 12:39:34,466 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 119 transitions. Word has length 67 [2018-11-28 12:39:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:34,466 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 119 transitions. [2018-11-28 12:39:34,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-28 12:39:34,466 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 119 transitions. [2018-11-28 12:39:34,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-28 12:39:34,467 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:34,467 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:34,468 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:39:34,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:34,468 INFO L82 PathProgramCache]: Analyzing trace with hash 723023891, now seen corresponding path program 1 times [2018-11-28 12:39:34,468 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:39:34,468 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:39:34,491 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:39:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:34,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:34,715 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 [2018-11-28 12:39:34,715 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:34,725 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 [2018-11-28 12:39:34,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:34,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:34,730 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:35,466 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 [2018-11-28 12:39:35,472 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,473 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 [2018-11-28 12:39:35,474 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,489 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,490 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,490 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 [2018-11-28 12:39:35,490 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,500 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:35,532 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,534 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 [2018-11-28 12:39:35,534 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,549 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,550 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,550 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 [2018-11-28 12:39:35,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,560 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,560 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:35,627 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,628 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,629 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 [2018-11-28 12:39:35,629 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,647 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 [2018-11-28 12:39:35,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,656 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,656 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:35,699 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,701 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,702 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 [2018-11-28 12:39:35,702 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,717 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 [2018-11-28 12:39:35,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,726 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:35,770 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,771 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:35,772 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 [2018-11-28 12:39:35,772 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,787 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 [2018-11-28 12:39:35,788 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,797 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:35,797 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 50 trivial. 20 not checked. [2018-11-28 12:39:35,824 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:36,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:39:36,164 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:39:36,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:36,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:36,241 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 [2018-11-28 12:39:36,241 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:36,259 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 [2018-11-28 12:39:36,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:36,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:36,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:36,271 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:36,272 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:36,273 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 [2018-11-28 12:39:36,273 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:36,287 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 [2018-11-28 12:39:36,288 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:36,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:36,297 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:39:37,361 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)) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|))) is different from true [2018-11-28 12:39:37,366 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,369 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 [2018-11-28 12:39:37,370 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,390 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,391 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,392 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 [2018-11-28 12:39:37,392 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:37,407 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:26 [2018-11-28 12:39:37,521 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,523 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,525 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,526 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2018-11-28 12:39:37,526 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2018-11-28 12:39:37,554 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,575 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:41, output treesize:14 [2018-11-28 12:39:37,582 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,584 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 [2018-11-28 12:39:37,585 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,599 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,599 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,600 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 [2018-11-28 12:39:37,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,610 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,610 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:37,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,642 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 [2018-11-28 12:39:37,643 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,656 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,657 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:37,658 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 [2018-11-28 12:39:37,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:37,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:37,676 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 42 trivial. 28 not checked. [2018-11-28 12:39:37,676 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:37,876 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:39:37,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 22 [2018-11-28 12:39:37,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-28 12:39:37,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-28 12:39:37,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=432, Unknown=2, NotChecked=86, Total=600 [2018-11-28 12:39:37,877 INFO L87 Difference]: Start difference. First operand 89 states and 119 transitions. Second operand 23 states. [2018-11-28 12:39:39,731 WARN L180 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-11-28 12:39:40,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:40,590 INFO L93 Difference]: Finished difference Result 129 states and 173 transitions. [2018-11-28 12:39:40,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 12:39:40,591 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2018-11-28 12:39:40,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:40,592 INFO L225 Difference]: With dead ends: 129 [2018-11-28 12:39:40,592 INFO L226 Difference]: Without dead ends: 129 [2018-11-28 12:39:40,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=148, Invalid=980, Unknown=2, NotChecked=130, Total=1260 [2018-11-28 12:39:40,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-11-28 12:39:40,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 94. [2018-11-28 12:39:40,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-11-28 12:39:40,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2018-11-28 12:39:40,596 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 126 transitions. Word has length 67 [2018-11-28 12:39:40,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:40,596 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 126 transitions. [2018-11-28 12:39:40,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-28 12:39:40,596 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 126 transitions. [2018-11-28 12:39:40,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-28 12:39:40,598 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:40,598 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:40,598 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:39:40,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:40,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1212636396, now seen corresponding path program 2 times [2018-11-28 12:39:40,599 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:39:40,599 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:39:40,616 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 12:39:40,795 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:39:40,795 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:40,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:40,809 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 [2018-11-28 12:39:40,809 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:40,819 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 [2018-11-28 12:39:40,819 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:40,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:40,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:41,445 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 [2018-11-28 12:39:41,450 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,451 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 [2018-11-28 12:39:41,452 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,465 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,466 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,467 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 [2018-11-28 12:39:41,467 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,477 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:41,551 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,554 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 [2018-11-28 12:39:41,554 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,568 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,569 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,570 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 [2018-11-28 12:39:41,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,580 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:41,622 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,624 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 [2018-11-28 12:39:41,624 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,641 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,642 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 [2018-11-28 12:39:41,642 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,652 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:39:41,722 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,723 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:41,723 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 [2018-11-28 12:39:41,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,740 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 [2018-11-28 12:39:41,741 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:41,751 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:39:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 44 trivial. 24 not checked. [2018-11-28 12:39:41,780 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:42,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:39:42,121 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:39:42,128 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:39:42,188 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:39:42,188 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:42,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:42,195 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 [2018-11-28 12:39:42,195 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:42,207 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 [2018-11-28 12:39:42,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:42,212 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:42,212 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:42,838 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)) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|))) is different from true [2018-11-28 12:39:42,843 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:42,845 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 [2018-11-28 12:39:42,845 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:42,863 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:42,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:42,865 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 19 treesize of output 23 [2018-11-28 12:39:42,865 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:42,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:42,878 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:27 [2018-11-28 12:39:43,041 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,044 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2018-11-28 12:39:43,044 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:43,071 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,072 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,072 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:43,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 42 [2018-11-28 12:39:43,073 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:43,097 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:43,097 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:46, output treesize:44 [2018-11-28 12:39:43,242 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,243 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:43,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 55 [2018-11-28 12:39:43,245 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:43,292 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2018-11-28 12:39:43,293 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:43,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:43,323 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:61, output treesize:61 [2018-11-28 12:39:43,701 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2018-11-28 12:39:43,704 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:43,745 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,746 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,747 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,748 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:43,749 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:43,749 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 41 [2018-11-28 12:39:43,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:43,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:43,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:72, output treesize:14 [2018-11-28 12:39:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 38 trivial. 30 not checked. [2018-11-28 12:39:43,798 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:44,021 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:39:44,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 26 [2018-11-28 12:39:44,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-28 12:39:44,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-28 12:39:44,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=601, Unknown=2, NotChecked=102, Total=812 [2018-11-28 12:39:44,021 INFO L87 Difference]: Start difference. First operand 94 states and 126 transitions. Second operand 27 states. [2018-11-28 12:39:45,710 WARN L180 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-11-28 12:39:47,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:47,688 INFO L93 Difference]: Finished difference Result 143 states and 188 transitions. [2018-11-28 12:39:47,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-28 12:39:47,689 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 67 [2018-11-28 12:39:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:47,689 INFO L225 Difference]: With dead ends: 143 [2018-11-28 12:39:47,689 INFO L226 Difference]: Without dead ends: 143 [2018-11-28 12:39:47,690 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 106 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=237, Invalid=1749, Unknown=2, NotChecked=174, Total=2162 [2018-11-28 12:39:47,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-11-28 12:39:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 72. [2018-11-28 12:39:47,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:39:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 95 transitions. [2018-11-28 12:39:47,695 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 95 transitions. Word has length 67 [2018-11-28 12:39:47,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:47,695 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 95 transitions. [2018-11-28 12:39:47,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-28 12:39:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2018-11-28 12:39:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-28 12:39:47,696 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:47,696 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:47,696 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:39:47,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:47,697 INFO L82 PathProgramCache]: Analyzing trace with hash 440077534, now seen corresponding path program 6 times [2018-11-28 12:39:47,697 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:39:47,697 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:39:47,718 INFO L101 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2018-11-28 12:39:48,493 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-11-28 12:39:48,493 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:39:48,514 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:39:48,528 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 [2018-11-28 12:39:48,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:48,535 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 [2018-11-28 12:39:48,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:48,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:48,540 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:39:49,406 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)) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|))) is different from true [2018-11-28 12:39:49,411 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,413 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,413 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 19 treesize of output 23 [2018-11-28 12:39:49,413 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:49,434 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 [2018-11-28 12:39:49,434 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:49,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:49,448 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-11-28 12:39:49,519 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,522 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2018-11-28 12:39:49,522 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:49,565 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,567 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,567 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:49,568 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 42 [2018-11-28 12:39:49,568 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:49,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:49,601 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:46, output treesize:42 [2018-11-28 12:39:49,693 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,711 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2018-11-28 12:39:49,712 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:49,761 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,763 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,765 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:49,765 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:49,766 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 59 [2018-11-28 12:39:49,766 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:49,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-28 12:39:49,802 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:59 [2018-11-28 12:39:50,768 WARN L180 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 12:39:50,776 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:50,777 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:50,779 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:50,780 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:50,781 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:39:50,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 41 [2018-11-28 12:39:50,782 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:50,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 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 [2018-11-28 12:39:50,831 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:50,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:50,870 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:72, output treesize:18 [2018-11-28 12:39:50,994 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:50,996 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:50,996 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 [2018-11-28 12:39:50,997 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:51,024 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 [2018-11-28 12:39:51,024 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:51,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:51,037 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:18 [2018-11-28 12:39:51,141 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:51,146 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 [2018-11-28 12:39:51,146 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:51,163 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:51,164 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:51,165 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 [2018-11-28 12:39:51,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:51,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:51,176 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-11-28 12:39:52,360 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 [2018-11-28 12:39:52,364 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:52,367 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 [2018-11-28 12:39:52,367 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:52,382 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:52,383 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:39:52,383 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 [2018-11-28 12:39:52,383 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:39:52,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:39:52,393 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:39:52,436 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 7 proven. 112 refuted. 0 times theorem prover too weak. 54 trivial. 38 not checked. [2018-11-28 12:39:52,436 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:39:52,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:39:52,831 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:39:52,839 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 12:40:14,166 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-11-28 12:40:14,166 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:40:14,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:14,178 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 [2018-11-28 12:40:14,178 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,189 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 [2018-11-28 12:40:14,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,194 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:40:14,215 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,221 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 [2018-11-28 12:40:14,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,243 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,245 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,245 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 [2018-11-28 12:40:14,246 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,261 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:14,361 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,364 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,364 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 [2018-11-28 12:40:14,364 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,380 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 [2018-11-28 12:40:14,380 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,393 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:14,470 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,472 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 [2018-11-28 12:40:14,472 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,487 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 [2018-11-28 12:40:14,487 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,497 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:14,534 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,535 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,536 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 [2018-11-28 12:40:14,536 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,551 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 [2018-11-28 12:40:14,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,563 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:14,568 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,570 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 [2018-11-28 12:40:14,571 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,584 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,585 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,586 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 [2018-11-28 12:40:14,586 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:40:14,634 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,636 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 [2018-11-28 12:40:14,637 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,650 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,651 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,652 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 [2018-11-28 12:40:14,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,661 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:14,731 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,733 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 [2018-11-28 12:40:14,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,747 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,748 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:14,748 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 [2018-11-28 12:40:14,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:14,758 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 7 proven. 106 refuted. 0 times theorem prover too weak. 84 trivial. 14 not checked. [2018-11-28 12:40:14,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:40:15,028 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:40:15,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21] total 32 [2018-11-28 12:40:15,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-28 12:40:15,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-28 12:40:15,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=935, Unknown=2, NotChecked=126, Total=1190 [2018-11-28 12:40:15,029 INFO L87 Difference]: Start difference. First operand 72 states and 95 transitions. Second operand 33 states. [2018-11-28 12:40:18,255 WARN L180 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2018-11-28 12:40:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:32,334 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2018-11-28 12:40:32,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 12:40:32,335 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 76 [2018-11-28 12:40:32,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:32,335 INFO L225 Difference]: With dead ends: 101 [2018-11-28 12:40:32,335 INFO L226 Difference]: Without dead ends: 101 [2018-11-28 12:40:32,336 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=306, Invalid=2780, Unknown=2, NotChecked=218, Total=3306 [2018-11-28 12:40:32,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-28 12:40:32,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 72. [2018-11-28 12:40:32,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:40:32,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2018-11-28 12:40:32,340 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 76 [2018-11-28 12:40:32,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:32,340 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2018-11-28 12:40:32,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-28 12:40:32,340 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2018-11-28 12:40:32,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-28 12:40:32,341 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:32,341 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:32,341 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:40:32,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:32,342 INFO L82 PathProgramCache]: Analyzing trace with hash -912533644, now seen corresponding path program 7 times [2018-11-28 12:40:32,342 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:40:32,342 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:40:32,361 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:40:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:32,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:32,725 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 [2018-11-28 12:40:32,725 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:32,735 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 [2018-11-28 12:40:32,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:32,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:32,743 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:40:33,699 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 [2018-11-28 12:40:33,704 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,705 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,705 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 [2018-11-28 12:40:33,706 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,720 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 [2018-11-28 12:40:33,721 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,730 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:33,764 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,765 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,766 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 [2018-11-28 12:40:33,766 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,781 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 [2018-11-28 12:40:33,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,791 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,792 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:40:33,828 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,829 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,829 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 [2018-11-28 12:40:33,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,844 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 [2018-11-28 12:40:33,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,854 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:33,893 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,895 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,895 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 [2018-11-28 12:40:33,895 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,910 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 [2018-11-28 12:40:33,910 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,920 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:33,969 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,971 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 [2018-11-28 12:40:33,972 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:33,992 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:33,994 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 [2018-11-28 12:40:33,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,005 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:34,055 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,057 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 [2018-11-28 12:40:34,057 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,072 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,073 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,073 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 [2018-11-28 12:40:34,073 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,083 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,084 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:34,132 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,134 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,134 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 [2018-11-28 12:40:34,134 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,149 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 [2018-11-28 12:40:34,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:34,211 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,214 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 [2018-11-28 12:40:34,215 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,230 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,231 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,231 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 [2018-11-28 12:40:34,231 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,257 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:40:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 8 proven. 141 refuted. 0 times theorem prover too weak. 112 trivial. 16 not checked. [2018-11-28 12:40:34,301 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:40:34,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:40:34,699 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:40:34,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:40:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:40:34,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:34,808 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 [2018-11-28 12:40:34,808 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,816 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 [2018-11-28 12:40:34,816 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,822 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:40:34,837 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,847 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 [2018-11-28 12:40:34,847 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,865 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,866 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 [2018-11-28 12:40:34,866 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:40:34,889 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,899 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 [2018-11-28 12:40:34,899 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,917 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,918 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,918 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 [2018-11-28 12:40:34,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,930 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:40:34,936 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,939 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 [2018-11-28 12:40:34,939 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,954 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,955 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,956 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 [2018-11-28 12:40:34,956 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,970 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,970 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:34,977 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,978 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:34,979 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 [2018-11-28 12:40:34,979 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:34,995 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 [2018-11-28 12:40:34,995 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,005 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:35,011 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,013 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,013 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 [2018-11-28 12:40:35,013 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,028 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 [2018-11-28 12:40:35,029 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,038 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:35,050 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,052 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 [2018-11-28 12:40:35,052 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,067 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 [2018-11-28 12:40:35,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,077 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:35,083 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,085 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,085 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 [2018-11-28 12:40:35,085 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,101 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 [2018-11-28 12:40:35,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:35,149 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,151 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 [2018-11-28 12:40:35,151 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,165 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,166 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:35,166 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 [2018-11-28 12:40:35,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:35,176 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 8 proven. 141 refuted. 0 times theorem prover too weak. 112 trivial. 16 not checked. [2018-11-28 12:40:35,188 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:40:35,457 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:40:35,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2018-11-28 12:40:35,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-28 12:40:35,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-28 12:40:35,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=522, Unknown=1, NotChecked=46, Total=650 [2018-11-28 12:40:35,458 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand 24 states. [2018-11-28 12:40:37,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:37,613 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2018-11-28 12:40:37,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-28 12:40:37,613 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2018-11-28 12:40:37,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:37,614 INFO L225 Difference]: With dead ends: 88 [2018-11-28 12:40:37,614 INFO L226 Difference]: Without dead ends: 88 [2018-11-28 12:40:37,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 148 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=201, Invalid=1782, Unknown=1, NotChecked=86, Total=2070 [2018-11-28 12:40:37,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-28 12:40:37,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 72. [2018-11-28 12:40:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:40:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2018-11-28 12:40:37,617 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 85 [2018-11-28 12:40:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:37,618 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2018-11-28 12:40:37,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-28 12:40:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2018-11-28 12:40:37,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-28 12:40:37,621 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:37,621 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:37,622 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:40:37,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:37,622 INFO L82 PathProgramCache]: Analyzing trace with hash 2089194910, now seen corresponding path program 8 times [2018-11-28 12:40:37,622 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:40:37,622 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:40:37,642 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 12:40:37,995 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:40:37,995 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:40:38,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:38,025 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 [2018-11-28 12:40:38,025 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,035 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 [2018-11-28 12:40:38,035 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,040 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:40:38,836 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 [2018-11-28 12:40:38,841 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,844 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 [2018-11-28 12:40:38,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,858 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,859 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,859 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 [2018-11-28 12:40:38,859 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,869 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,869 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:38,902 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,903 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,903 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 [2018-11-28 12:40:38,904 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,919 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 [2018-11-28 12:40:38,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:38,964 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,966 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 [2018-11-28 12:40:38,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,980 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,981 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:38,982 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 [2018-11-28 12:40:38,982 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:38,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:40:39,031 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,033 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 [2018-11-28 12:40:39,033 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,047 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,048 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,048 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 [2018-11-28 12:40:39,048 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,058 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,058 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:39,100 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,101 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,101 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 [2018-11-28 12:40:39,101 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,116 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 [2018-11-28 12:40:39,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,126 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:39,171 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,173 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,173 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 [2018-11-28 12:40:39,173 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,188 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 [2018-11-28 12:40:39,188 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,198 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:39,247 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,249 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,249 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 [2018-11-28 12:40:39,249 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,264 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 [2018-11-28 12:40:39,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,274 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:39,325 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,326 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,327 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 [2018-11-28 12:40:39,327 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,342 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 [2018-11-28 12:40:39,342 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,352 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:39,435 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,437 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 [2018-11-28 12:40:39,437 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,451 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,451 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:39,452 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 [2018-11-28 12:40:39,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,461 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:39,461 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 9 proven. 181 refuted. 0 times theorem prover too weak. 144 trivial. 18 not checked. [2018-11-28 12:40:39,501 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:40:39,942 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:40:39,942 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:40:39,952 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 12:40:40,077 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:40:40,077 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:40:40,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:40,093 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 [2018-11-28 12:40:40,094 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,125 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 [2018-11-28 12:40:40,125 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:40:40,143 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,145 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 [2018-11-28 12:40:40,145 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,163 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,164 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,165 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 [2018-11-28 12:40:40,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,177 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,177 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-11-28 12:40:40,184 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,187 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 [2018-11-28 12:40:40,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,206 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,207 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,207 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 [2018-11-28 12:40:40,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,217 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:40:40,241 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,243 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 [2018-11-28 12:40:40,244 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,258 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,259 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,259 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 [2018-11-28 12:40:40,259 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:40,275 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,277 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 [2018-11-28 12:40:40,278 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,292 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,293 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,293 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 [2018-11-28 12:40:40,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,304 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,304 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:40:40,309 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,310 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,310 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 [2018-11-28 12:40:40,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,323 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 [2018-11-28 12:40:40,323 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,333 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:40,339 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,341 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,341 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 [2018-11-28 12:40:40,342 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,362 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 [2018-11-28 12:40:40,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,372 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:40,378 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,379 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,380 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 [2018-11-28 12:40:40,380 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,395 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 [2018-11-28 12:40:40,395 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,405 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:40,410 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,413 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 [2018-11-28 12:40:40,413 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,427 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,427 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,428 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 [2018-11-28 12:40:40,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,438 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:40,504 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,506 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 [2018-11-28 12:40:40,506 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,520 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,521 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:40,521 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 [2018-11-28 12:40:40,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:40,532 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 9 proven. 181 refuted. 0 times theorem prover too weak. 144 trivial. 18 not checked. [2018-11-28 12:40:40,546 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:40:40,820 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:40:40,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2018-11-28 12:40:40,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-28 12:40:40,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-28 12:40:40,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=616, Unknown=1, NotChecked=50, Total=756 [2018-11-28 12:40:40,821 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand 26 states. [2018-11-28 12:40:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:40:43,098 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2018-11-28 12:40:43,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-28 12:40:43,099 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 94 [2018-11-28 12:40:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:40:43,100 INFO L225 Difference]: With dead ends: 90 [2018-11-28 12:40:43,100 INFO L226 Difference]: Without dead ends: 90 [2018-11-28 12:40:43,101 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=222, Invalid=2133, Unknown=1, NotChecked=94, Total=2450 [2018-11-28 12:40:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-11-28 12:40:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 72. [2018-11-28 12:40:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:40:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2018-11-28 12:40:43,104 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 94 [2018-11-28 12:40:43,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:40:43,105 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2018-11-28 12:40:43,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-28 12:40:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2018-11-28 12:40:43,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-28 12:40:43,105 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:40:43,106 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:40:43,106 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:40:43,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:40:43,106 INFO L82 PathProgramCache]: Analyzing trace with hash 115222196, now seen corresponding path program 9 times [2018-11-28 12:40:43,107 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:40:43,107 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 31 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:40:43,133 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-28 12:40:44,099 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-28 12:40:44,100 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:40:44,132 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:40:44,143 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 [2018-11-28 12:40:44,143 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:44,152 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 [2018-11-28 12:40:44,152 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:44,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:44,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:40:44,965 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)) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|))) is different from true [2018-11-28 12:40:44,970 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:44,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:44,972 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 [2018-11-28 12:40:44,972 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:44,993 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 [2018-11-28 12:40:44,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:45,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 12:40:45,006 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:28 [2018-11-28 12:40:46,012 WARN L180 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 12:40:46,017 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:46,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2018-11-28 12:40:46,019 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:46,038 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:46,039 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:46,040 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:46,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2018-11-28 12:40:46,041 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:46,056 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:46,056 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:16 [2018-11-28 12:40:46,139 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:46,141 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 [2018-11-28 12:40:46,141 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:46,155 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:46,155 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:46,156 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 [2018-11-28 12:40:46,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:46,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:46,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2018-11-28 12:40:47,055 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 [2018-11-28 12:40:47,059 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,061 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 [2018-11-28 12:40:47,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,075 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,076 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,077 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 [2018-11-28 12:40:47,077 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:47,150 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,151 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,152 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 [2018-11-28 12:40:47,152 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,171 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 [2018-11-28 12:40:47,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:40:47,374 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,381 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 2 case distinctions, treesize of input 14 treesize of output 15 [2018-11-28 12:40:47,381 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-11-28 12:40:47,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-28 12:40:47,395 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:33 [2018-11-28 12:40:47,558 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 22 treesize of output 19 [2018-11-28 12:40:47,558 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,590 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,594 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,601 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 2 case distinctions, treesize of input 27 treesize of output 32 [2018-11-28 12:40:47,601 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-28 12:40:47,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-28 12:40:47,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:50, output treesize:44 [2018-11-28 12:40:47,907 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,909 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,909 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 34 treesize of output 26 [2018-11-28 12:40:47,910 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:47,955 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,957 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:47,958 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 39 treesize of output 31 [2018-11-28 12:40:47,958 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,007 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,010 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,022 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 44 [2018-11-28 12:40:48,022 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-28 12:40:48,089 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 26 treesize of output 25 [2018-11-28 12:40:48,090 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-11-28 12:40:48,129 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:74, output treesize:66 [2018-11-28 12:40:48,462 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,464 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 [2018-11-28 12:40:48,464 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,478 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,479 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,480 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 [2018-11-28 12:40:48,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,490 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:48,685 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,687 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 [2018-11-28 12:40:48,687 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,701 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,703 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:40:48,703 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 [2018-11-28 12:40:48,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:40:48,714 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:40:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 18 proven. 272 refuted. 0 times theorem prover too weak. 78 trivial. 68 not checked. [2018-11-28 12:40:48,783 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:40:49,344 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:40:49,344 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:40:49,350 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:41:15,573 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-28 12:41:15,573 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:41:15,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:15,589 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 [2018-11-28 12:41:15,589 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,606 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 [2018-11-28 12:41:15,607 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-11-28 12:41:15,618 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,620 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 [2018-11-28 12:41:15,620 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,634 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,635 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,635 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 [2018-11-28 12:41:15,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,645 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,645 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:41:15,691 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,693 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,693 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 [2018-11-28 12:41:15,693 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,706 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 [2018-11-28 12:41:15,706 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,716 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,716 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:41:15,722 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,724 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 [2018-11-28 12:41:15,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,738 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,739 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,739 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 [2018-11-28 12:41:15,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,750 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:41:15,756 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,758 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 [2018-11-28 12:41:15,758 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,772 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,773 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,773 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 [2018-11-28 12:41:15,774 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,783 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,783 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-11-28 12:41:15,789 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,791 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 [2018-11-28 12:41:15,792 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,806 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,807 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,808 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 [2018-11-28 12:41:15,808 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,818 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:41:15,869 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,872 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 [2018-11-28 12:41:15,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,886 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,887 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,887 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 [2018-11-28 12:41:15,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-11-28 12:41:15,951 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,954 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 [2018-11-28 12:41:15,954 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,970 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,971 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:15,972 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 [2018-11-28 12:41:15,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,982 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:15,982 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:41:16,066 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,068 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 [2018-11-28 12:41:16,068 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,082 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,083 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,084 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 [2018-11-28 12:41:16,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,094 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:41:16,144 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,146 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 [2018-11-28 12:41:16,146 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,160 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,161 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,161 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 [2018-11-28 12:41:16,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,171 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:41:16,257 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,261 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 [2018-11-28 12:41:16,262 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,283 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,284 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:41:16,284 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 [2018-11-28 12:41:16,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:41:16,297 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-11-28 12:41:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 10 proven. 226 refuted. 0 times theorem prover too weak. 180 trivial. 20 not checked. [2018-11-28 12:41:16,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:16,733 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:16,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 27] total 44 [2018-11-28 12:41:16,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-28 12:41:16,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-28 12:41:16,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1833, Unknown=2, NotChecked=174, Total=2162 [2018-11-28 12:41:16,734 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand 45 states. [2018-11-28 12:41:20,726 WARN L180 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2018-11-28 12:41:45,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:45,750 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2018-11-28 12:41:45,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-28 12:41:45,750 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 103 [2018-11-28 12:41:45,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:45,752 INFO L225 Difference]: With dead ends: 101 [2018-11-28 12:41:45,752 INFO L226 Difference]: Without dead ends: 101 [2018-11-28 12:41:45,753 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 160 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 893 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=347, Invalid=4351, Unknown=2, NotChecked=270, Total=4970 [2018-11-28 12:41:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-28 12:41:45,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 75. [2018-11-28 12:41:45,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-28 12:41:45,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2018-11-28 12:41:45,757 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 103 [2018-11-28 12:41:45,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:45,757 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2018-11-28 12:41:45,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-28 12:41:45,757 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2018-11-28 12:41:45,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-28 12:41:45,758 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:45,758 INFO L402 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:45,758 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-11-28 12:41:45,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:45,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1358130649, now seen corresponding path program 3 times [2018-11-28 12:41:45,759 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:45,759 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_514197c8-57b3-4857-b0a6-c097c0950e71/bin-2019/uautomizer/cvc4 Starting monitored process 33 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:45,781 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 12:41:47,640 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-11-28 12:41:47,641 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2018-11-28 12:41:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:41:49,495 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:41:49,510 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:41:49,515 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# [2018-11-28 12:41:49,515 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# [2018-11-28 12:41:49,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:41:49 BoogieIcfgContainer [2018-11-28 12:41:49,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:41:49,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:41:49,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:41:49,539 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:41:49,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:40" (3/4) ... [2018-11-28 12:41:49,542 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:41:49,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:41:49,543 INFO L168 Benchmark]: Toolchain (without parser) took 190396.23 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 257.9 MB). Free memory was 938.0 MB in the beginning and 998.0 MB in the end (delta: -60.0 MB). Peak memory consumption was 197.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:41:49,543 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-28 12:41:49,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:41:49,544 INFO L168 Benchmark]: Boogie Preprocessor took 52.24 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. [2018-11-28 12:41:49,544 INFO L168 Benchmark]: RCFGBuilder took 905.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.0 MB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:41:49,544 INFO L168 Benchmark]: TraceAbstraction took 189017.63 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 130.5 MB). Free memory was 994.0 MB in the beginning and 998.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 126.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:41:49,544 INFO L168 Benchmark]: Witness Printer took 6.97 ms. Allocated memory is still 1.3 GB. Free memory is still 998.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:41:49,545 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 410.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.24 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 905.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.0 MB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 189017.63 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 130.5 MB). Free memory was 994.0 MB in the beginning and 998.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 126.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.97 ms. Allocated memory is still 1.3 GB. Free memory is still 998.0 MB. 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: 1452]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1452. 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={1129648599:0}] [L1453] CALL entry_point() VAL [ldv_global_msg_list={1129648599:0}] [L1439] int len = 10; VAL [ldv_global_msg_list={1129648599:0}, len=10] [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={1129648599:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); VAL [\old(size)=40, \result={-1666658772:0}, ldv_global_msg_list={1129648599:0}, malloc(size)={-1666658772:0}, size=40] [L1440] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={1129648599:0}, ldv_malloc(sizeof(struct A18*)*len)={-1666658772:0}, len=10] [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; VAL [array={-1666658772:0}, i=0, ldv_global_msg_list={1129648599:0}, len=10] [L1443] COND FALSE !(!array) VAL [array={-1666658772:0}, i=0, ldv_global_msg_list={1129648599:0}, len=10] [L1444] COND TRUE i